Overview

SCIENTIFIC SCORE
Questionable
Based on 24 Researches
6.8
USERS' SCORE
Good
Based on 6 Reviews
8
Supplement Facts
Serving Size: 1 Softgel
Amount Per Serving
%DV
Vitamin D3 (as Cholecalciferol) (From Lanolin)
1,250 mcg (50,000 IU)
6250%

Top Medical Research Studies

8
Vitamin D's effect on acne
We examined how vitamin D levels relate to acne and the potential connection with acne severity. By analyzing data from various studies, we found that 1,362 individuals with acne were compared against 1,081 healthy controls.

Our findings revealed that those with acne had significantly lower vitamin D levels compared to the healthy participants. Additionally, vitamin D deficiency was more prevalent among acne sufferers. Interestingly, we also observed a negative correlation between vitamin D levels and acne severity, suggesting that lower levels of this vitamin might be associated with more severe acne.

This evidence points to the possibility that vitamin D plays a role in acne development. However, while our results are compelling, they encourage further investigation into how vitamin D might influence acne severity and whether its supplementation could be beneficial for those affected by this condition.
Read More
8
Vitamin D and acne relationship examined
We sought to understand the connection between vitamin D levels and acne, along with how vitamin D supplementation might help those suffering from this common skin condition. Our investigation included various studies from a range of databases, focusing on the serum levels of a specific form of vitamin D—25(OH)D—and the effectiveness of vitamin D supplements for acne patients.

In our findings, we discovered that individuals with acne generally had lower serum levels of vitamin D. Specifically, the data revealed a significant difference, with acne patients showing a standardized mean difference of -7.66 ng/ml in vitamin D levels compared to those without the condition. Importantly, the articles we reviewed also pointed out the potential for vitamin D supplements to serve as a therapeutic option for improving acne.

Overall, this research contributes valuable insights into how vitamin D may play a role in managing acne, suggesting that addressing vitamin D deficiency in patients could have positive outcomes for their skin health.
Read More
We investigated the intriguing link between vitamin D receptor (VDR) gene variations and acne in women experiencing polycystic ovary syndrome (PCOS). This study involved a careful comparison of 46 women with PCOS and 39 controls that matched in age and body mass index. We focused on acne and other skin conditions, along with measuring hormones and oxidative stress levels to understand their interplay.

The findings revealed that certain genetic variations in the VDR gene, particularly the FokI CC genotype, seemed to play a protective role against acne development. Women with this genotype were significantly less likely to experience acne compared to those with different genotypes. Moreover, we noticed that the TaqI dominant genotype also appeared to reduce oxidative stress levels in these patients.

Overall, our research provides compelling evidence suggesting that vitamin D’s influence, particularly through its receptor, could be an important factor in managing acne for women with PCOS. It's an exciting step towards understanding how our genes and environment can affect our skin health.
Read More

Most Useful Reviews

0
Worsened acne outbreak
I was deeply dissatisfied. A relatively small dose of Vitamin D3 had no noticeable effect, but after taking this higher dosage, I felt lethargic and experienced an outbreak of acne. Both I and my family ceased taking it, and the fatigue and acne resolved after stopping.
Read More
9.5
Acne relief
These excellent quality Vitamin D3 tablets positively impacted my skin, helping me to clear my acne. With limited sunlight in winter, this vitamin is crucial. The packaging is good too.
Read More
9.5
Improved health overall
I continuously re-evaluate this product due to my love for it. After nearly 11 months of daily high-dose intake, it significantly improved my health, increased my immunity, relieved bone pain, and especially helped with my high acne. The packaging is excellent too.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 24 Researches
6.8
  • All Researches
9
Tracnil™ effective for PCOS acne
We investigated the effectiveness of Tracnil™, which combines myo-inositol, folic acid, and vitamin D3, on acne and other dermatological issues in overweight women with conditions related to Polycystic Ovary Syndrome (PCOS). Our findings showed that participants experienced a significant reduction in both inflammatory and non-inflammatory acne lesions within just eight weeks.

Notably, alongside improvements in acne, we observed positive changes in hirsutism—excess hair growth—and menstrual irregularities. Throughout the study, participants' safety was closely monitored, showing minimal adverse effects, while hormone levels remained stable despite our subjects initially having normal readings.

This leads us to believe that Tracnil™ may help regulate the body's response to sex hormones or perform other essential functions in managing PCOS symptoms, even when hormonal levels are not significantly abnormal. Therefore, we suggest that Tracnil™ could be an effective first-line treatment option for addressing dermatological concerns related to PCOS, simplifying treatment for those affected.
Read More
8
Vitamin D reduces acne inflammation
We conducted a double-blind, randomized controlled trial to explore how topical vitamin D affects acne vulgaris (AV). Our study involved 64 participants, who were split into two groups—one receiving a vitamin D treatment and the other a placebo. After 8 weeks, we observed significant changes in the inflammatory markers, specifically a reduction in interleukin-1 beta (IL-1β) levels, which plays a role in acne inflammation.

Participants in the vitamin D group showed a noticeable reduction in the number of inflammatory acne lesions compared to those using the placebo. This indicates that topical vitamin D can effectively lower inflammation associated with acne lesions.

It's essential to note that all participants also received topical adapalene, an established acne treatment. This could make it challenging to determine the exact effect of vitamin D alone. Nonetheless, the findings suggest that vitamin D has potential benefits in managing acne when included as part of a treatment regimen.
Read More
We investigated the intriguing link between vitamin D receptor (VDR) gene variations and acne in women experiencing polycystic ovary syndrome (PCOS). This study involved a careful comparison of 46 women with PCOS and 39 controls that matched in age and body mass index. We focused on acne and other skin conditions, along with measuring hormones and oxidative stress levels to understand their interplay.

The findings revealed that certain genetic variations in the VDR gene, particularly the FokI CC genotype, seemed to play a protective role against acne development. Women with this genotype were significantly less likely to experience acne compared to those with different genotypes. Moreover, we noticed that the TaqI dominant genotype also appeared to reduce oxidative stress levels in these patients.

Overall, our research provides compelling evidence suggesting that vitamin D’s influence, particularly through its receptor, could be an important factor in managing acne for women with PCOS. It's an exciting step towards understanding how our genes and environment can affect our skin health.
Read More
8
Vitamin D aids mild acne treatment
We embarked on a journey to understand how vitamin D might help with acne, particularly when combined with the standard treatment of benzoyl peroxide. Our study involved a well-structured approach, including a randomized, double-blind, placebo-controlled trial. This involved subjects diagnosed with mild to moderate acne, all applying benzoyl peroxide twice daily for 12 weeks.

During this time, participants were split into two groups—one receiving a weekly dose of 40,000 IU of vitamin D2, while the other group received a placebo. All subjects had low levels of vitamin D at the onset of the study, allowing us to investigate whether supplementation could make a difference.

As we analyzed the results, we noticed significant improvements in acne conditions for both groups. However, what stood out was the vitamin D2 group, which showed a statistically significant reduction in inflammatory lesions during the follow-up phase. Importantly, no adverse effects or unwanted biochemical changes were reported, highlighting the safety of this treatment.

Overall, our findings suggest that adding weekly vitamin D2 to a topical benzoyl peroxide regime could effectively reduce the likelihood of acne flare-ups in those with mild to moderate acne. While more extensive studies are needed to fully understand vitamin D's role in acne treatment, this adjunctive approach shows promise.
Read More
We conducted a study to explore the effectiveness of calcipotriol, a vitamin D analogue, in treating acne vulgaris. The research involved forty participants who received topical calcipotriol cream on one side of their face and adapalene gel on the other. This split-face approach allowed us to directly compare the effects of each treatment.

After two months, we observed a significant reduction in acne lesions on both sides of the face, with improvements noted in both physician and patient assessments. Interestingly, the density of inflammatory cells in the skin showed a notable decrease with calcipotriol, hinting at its potential anti-inflammatory properties.

While both treatments were effective, the results suggest that calcipotriol can be a valuable addition to acne therapy, providing similar benefits to adapalene but with a slightly different mechanism of action. Overall, this study opens new avenues for utilizing vitamin D in acne management.
Read More

User Reviews

USERS' SCORE
Good
Based on 6 Reviews
8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
0
Worsened acne outbreak
I was deeply dissatisfied. A relatively small dose of Vitamin D3 had no noticeable effect, but after taking this higher dosage, I felt lethargic and experienced an outbreak of acne. Both I and my family ceased taking it, and the fatigue and acne resolved after stopping.
Read More
9.5
Acne relief
These excellent quality Vitamin D3 tablets positively impacted my skin, helping me to clear my acne. With limited sunlight in winter, this vitamin is crucial. The packaging is good too.
Read More
9.5
Improved health overall
I continuously re-evaluate this product due to my love for it. After nearly 11 months of daily high-dose intake, it significantly improved my health, increased my immunity, relieved bone pain, and especially helped with my high acne. The packaging is excellent too.
Read More
8.8
Improved skin condition
I purchased Vitamin D3 for my 14-year-old child, and it has notably improved their acne skin condition.
Read More
8.8
Reduces inflammation
Vitamin D3 stimulates collagen production, which decreases with age. It promotes cell regeneration, slows down ageing, and reduces inflammation, making it essential for acne-prone skin and hair loss. The packaging is reliable, and the quality is good.
Read More

Frequently Asked Questions

Acne is a common skin condition that affects people of all ages, though it's especially prevalent among teenagers and young adults. It occurs when hair follicles become clogged with oil and dead skin cells, leading to the formation of pimples, blackheads, and cysts. The main factors contributing to acne include excess oil production, hormonal changes, and the presence of bacteria on the skin. Acne can manifest in various forms, from mild cases with just a few breakouts to more severe forms that can cause significant inflammation and scarring.

Treatment for acne varies depending on its severity and can range from over-the-counter topical treatments like benzoyl peroxide and salicylic acid to prescription medications including retinoids and antibiotics. Lifestyle adjustments, such as maintaining a balanced diet and proper skin hygiene, may also contribute to managing and reducing breakouts. Despite being a common skin issue, the psychological impact of acne should not be underestimated, as it can affect self-esteem and overall quality of life.

Vitamin D is a fat-soluble vitamin that's essential for maintaining healthy bones and teeth, supporting immune system function, and facilitating normal cell growth and development. It plays a crucial role in calcium absorption in the gut, which is vital for bone health. Unlike most vitamins, our bodies can produce Vitamin D when exposed to sunlight, specifically UVB rays, which is why it’s often referred to as the "sunshine vitamin." However, depending on your geographical location, lifestyle, and skin type, getting sufficient Vitamin D from the sun alone can be challenging, particularly during the winter months.

In addition to sunlight, Vitamin D can be obtained from certain foods such as fatty fish (like salmon and mackerel), fish liver oils, and fortified foods like milk and cereals. Some individuals may also consider supplements, especially if they're at risk for deficiency. Insufficient vitamin D levels are linked to various health issues, including rickets in children, osteomalacia in adults, and even an increased risk of chronic diseases. Regularly checking your vitamin D levels and consulting with a healthcare professional can help ensure you're meeting your needs for optimal health.

Based on user reviews, the timeline for seeing results from Vitamin D3 for acne can vary significantly. One user mentioned that after nearly 11 months of daily high-dose intake, their acne significantly improved, alongside other health benefits (Read Review). However, others have reported more immediate benefits, with one review highlighting a positive impact on acne shortly after starting the supplements (Read Review).

While some users may notice improvements within a few weeks of consistent use, others may take months to see substantial changes. It's also worth noting that individual responses can vary, as another user experienced a worsening of acne after taking a higher dosage (Read Review). Thus, while Vitamin D3 shows promise in managing acne, the time frame for noticeable results can range widely based on personal health situations and dosage.

Recent scientific research suggests that vitamin D, particularly in its topical form or as part of a treatment regimen, may have potential benefits in managing acne. A well-controlled study found that topical vitamin D3 significantly reduced inflammatory markers associated with acne lesions, indicating its effectiveness in lowering inflammation and improving acne conditions [15]. Moreover, various studies have indicated that individuals with acne often have insufficient levels of vitamin D, suggesting a correlation between vitamin D deficiency and acne severity [1][16].

However, while the association between vitamin D and acne is noteworthy, the efficacy of vitamin D treatment alone remains a topic of debate. Some studies highlight the need for further research to clarify whether vitamin D supplementation can lead to consistent improvements in acne symptoms [21][8]. Ultimately, while incorporating vitamin D into acne treatment regimens shows promise, it is essential to approach it as a complementary strategy rather than a standalone solution. As research continues, more insights may emerge that could solidify vitamin D's role in effective acne management.

Based on user reviews, many individuals have reported a range of improvements in their acne symptoms after taking Vitamin D3 supplements. Some users, like the individual who took high-dose Vitamin D3 for nearly 11 months, noted significant enhancements in their overall health and a marked reduction in acne severity (Read Review). Similarly, a parent mentioned a notable improvement in their child's acne condition after starting Vitamin D3, suggesting its potential effectiveness for younger users as well (Read Review).

In addition, another user emphasized the vitamin’s role in stimulating collagen production, which could further aid in combating acne and improving skin health overall (Read Review). However, it’s important to note that results can vary: one user experienced a worsening of their acne when taking a higher dosage, leading them to discontinue its use (Read Review). Overall, while many reported positive effects, individual outcomes with Vitamin D3 can differ significantly based on personal health and dosages taken.

According to user reviews, many have reported positive effects when combining Vitamin D3 with their acne management routine. One user noted that after taking a higher dosage of Vitamin D3 for nearly 11 months, their acne significantly improved alongside other health benefits (Read Review). This improvement was echoed by another user whose 14-year-old child experienced significant enhancements in their acne condition after starting the vitamin (Read Review). Additionally, users pointed to Vitamin D3's role in stimulating collagen production as critical for acne-prone skin, enhancing healing, and reducing inflammation (Read Review).

However, not all experiences were positive; one user reported a worsening of their acne after increasing their Vitamin D3 dosage, leading to discontinuation of the supplement (Read Review). This highlights the variability in individual responses. Overall, while many users have found success in managing acne with Vitamin D3, others caution that dosage should be monitored closely to avoid negative effects.

Based on recent research, the optimal dose of Vitamin D for treating acne seems to be around 40,000 IU weekly, particularly when combined with a standard acne treatment like benzoyl peroxide. In a randomized controlled trial involving patients diagnosed with mild to moderate acne, this supplementation led to a statistically significant reduction in inflammatory lesions, indicating its potential effectiveness in acne management [3]. Moreover, the topical application of Vitamin D3 has shown promise in reducing inflammation and improving acne conditions, suggesting that both supplementation and topical application may play crucial roles in an effective treatment regimen [15].

While studies have noted a correlation between low Vitamin D levels and acne severity, the relationship is complex. Some results indicate that Vitamin D deficiency is common among those with acne, yet the severity of acne does not always correspond with Vitamin D levels [6]. Therefore, while 40,000 IU weekly is a promising approach, individual responses can vary significantly. It's essential for those considering Vitamin D for acne treatment to consult healthcare professionals to tailor a dosage that aligns with their specific health needs and treatment plans.

9.5
Improved health overall
I continuously re-evaluate this product due to my love for it. After nearly 11 months of daily high-dose intake, it significantly improved my health, increased my immunity, relieved bone pain, and especially helped with my high acne. The packaging is excellent too.
9.5
Acne relief
These excellent quality Vitamin D3 tablets positively impacted my skin, helping me to clear my acne. With limited sunlight in winter, this vitamin is crucial. The packaging is good too.
0
Worsened acne outbreak
I was deeply dissatisfied. A relatively small dose of Vitamin D3 had no noticeable effect, but after taking this higher dosage, I felt lethargic and experienced an outbreak of acne. Both I and my family ceased taking it, and the fatigue and acne resolved after stopping.
8.8
Improved skin condition
I purchased Vitamin D3 for my 14-year-old child, and it has notably improved their acne skin condition.
8.8
Reduces inflammation
Vitamin D3 stimulates collagen production, which decreases with age. It promotes cell regeneration, slows down ageing, and reduces inflammation, making it essential for acne-prone skin and hair loss. The packaging is reliable, and the quality is good.
8
Vitamin D3 positively affects acne
We set out to investigate the effectiveness of topical vitamin D3 in treating acne vulgaris, particularly focusing on its anti-inflammatory effects. To do this, we conducted a well-structured double-blind, randomized, placebo-controlled trial over eight weeks. Participants were divided into two groups—one receiving topical vitamin D3 and the other a placebo—both alongside a common acne treatment known as adapalene.

Throughout the study, we closely monitored the levels of interleukin-1 beta (IL-1β), a pro-inflammatory cytokine often elevated in acne lesions. By using advanced assays, we were able to quantify the decrease in IL-1β alongside observing the reduction in inflammatory lesions over time. What we discovered was promising; the topical application of vitamin D3 not only helped lower IL-1β levels in acne lesions but also contributed to a noticeable decrease in acne severity.

These results suggest that vitamin D3 might play a valuable role in managing acne through its ability to modulate inflammation and improve skin conditions. Therefore, incorporating vitamin D3 into acne treatment regimens could be beneficial for those struggling with this common skin issue.
We aimed to understand the connection between vitamin D levels and acne severity, especially considering body mass index (BMI) factors. In our study, we compared vitamin D levels in 50 acne patients with 30 healthy volunteers. We utilized a known grading system to assess the severity of acne while also calculating BMI for all participants.

Our findings revealed that vitamin D deficiency was noticeably more common among acne patients, with 28% of them showing low levels, as opposed to just 6.7% in the control group. However, we did not find a significant difference in the average vitamin D levels between the two groups. The most striking observation was that nearly 60% of the patients with very severe acne were vitamin D deficient, and a high percentage of these individuals also experienced increased BMI.

While we witnessed a correlation between low vitamin D levels and more severe acne cases, we must conclude that the study did not directly test the effectiveness of vitamin D3 treatment. Instead, it showed an associated relationship. This means that while vitamin D deficiency seems relevant to acne severity, we cannot definitively say that vitamin D3 treatment would improve acne conditions based on our observations.
8
Vitamin D's potential in acne treatment
We explored the relationship between vitamin D levels and acne by comparing 80 acne patients with 80 healthy individuals. Through our analysis, we found that vitamin D deficiency was noticeably more common among those with acne, highlighting a potential avenue for treatment. Almost 49% of the acne group was found to have low vitamin D levels, compared to just 22.5% in the control group.

Moreover, we observed a clear connection between the severity of acne and vitamin D levels. Specifically, lower vitamin D levels seemed to correlate with more severe inflammatory acne lesions. This prompted us to examine whether supplementing with vitamin D could lead to improvement. We treated participants with a vitamin D supplement for two months, and many reported a positive change in their skin condition.

However, it's important to note that our study had limitations, such as a small sample size for the supplementation group and the natural variability of acne. Overall, while there appears to be a link between vitamin D deficiency and acne severity, and some positive effects from supplementation, further research is needed to better understand and confirm these findings.
We explored the connection between vitamin D levels and acne severity, as previous studies hinted at a potential link. This systematic review examined various research articles and focused on the effects of serum 25-hydroxy vitamin D levels in individuals diagnosed with acne vulgaris.

From a pool of 401 studies, we analyzed 10 that met the criteria for inclusion. Most of these studies (eight out of ten) indicated that lower levels of vitamin D in the serum corresponded with more severe acne. However, it's essential to note that the relationship wasn't statistically significant in two of these studies.

Our findings suggest an intriguing possibility: that checking vitamin D levels could be beneficial for those suffering from acne. If vitamin D truly impacts acne severity, it opens up exciting avenues for prevention and treatment strategies that we may consider further.
8
Vitamin D aids mild acne treatment
We embarked on a journey to understand how vitamin D might help with acne, particularly when combined with the standard treatment of benzoyl peroxide. Our study involved a well-structured approach, including a randomized, double-blind, placebo-controlled trial. This involved subjects diagnosed with mild to moderate acne, all applying benzoyl peroxide twice daily for 12 weeks.

During this time, participants were split into two groups—one receiving a weekly dose of 40,000 IU of vitamin D2, while the other group received a placebo. All subjects had low levels of vitamin D at the onset of the study, allowing us to investigate whether supplementation could make a difference.

As we analyzed the results, we noticed significant improvements in acne conditions for both groups. However, what stood out was the vitamin D2 group, which showed a statistically significant reduction in inflammatory lesions during the follow-up phase. Importantly, no adverse effects or unwanted biochemical changes were reported, highlighting the safety of this treatment.

Overall, our findings suggest that adding weekly vitamin D2 to a topical benzoyl peroxide regime could effectively reduce the likelihood of acne flare-ups in those with mild to moderate acne. While more extensive studies are needed to fully understand vitamin D's role in acne treatment, this adjunctive approach shows promise.
We conducted a study to uncover how vitamin D levels relate to moderate and severe acne. Over several months at the Dermatology OPD in Karachi, we analyzed the vitamin D levels in 150 participants—50 with moderate acne, 50 with severe acne, and 50 healthy individuals.

Our results revealed that individuals suffering from acne had notably lower vitamin D levels compared to those in the control group. Specifically, the average vitamin D levels were 7.09 ng/ml for severe acne, 13.7 ng/ml for moderate acne, and 21.6 ng/ml for healthy participants. However, an interesting finding emerged; although vitamin D deficiency was evident in those with acne, the severity of acne did not correlate with varying vitamin D levels.

In other words, while we saw a clear association between lower vitamin D and acne presence, more severe acne didn’t mean lower vitamin D levels. This leads us to conclude that while vitamin D deficiency is pronounced in acne sufferers, it doesn't necessarily escalate with worsening acne.

Therefore, if you’re considering vitamin D treatment as a remedy for acne, this study suggests you might not find a direct improvement in your skin condition tied to vitamin D levels.

References

  1. Dahlan NH, Sitohang IBS, Indriatmi W, Wibowo H, Enggy LE. Correlation Between Reduced IL-1β Levels in Acne Lesions and the Decrease in Acne Inflammatory Lesions Following Topical Vitamin D Administration: A Double-Blind Randomized Controlled Trial. Clin Cosmet Investig Dermatol. 2024;17:2183. doi:10.2147/CCID.S475068
  2. Talida V, Tudor SS, Mihaela I, Daniela-Rodica M, Gabriela A F, et al. The Impact of Vitamin D Receptor Gene Polymorphisms () in Correlation with Oxidative Stress and Hormonal and Dermatologic Manifestations in Polycystic Ovary Syndrome. Medicina (Kaunas). 2024;60. doi:10.3390/medicina60091501
  3. Ruikchuchit T, Juntongjin P. Role of vitamin D supplement adjunct to topical benzoyl peroxide in acne: a randomized double-blinded controlled study. Int J Womens Dermatol. 2024;10:e163. doi:10.1097/JW9.0000000000000163
  4. Hussein RS, Dayel SB, Abahussein O. Prospective study of the effects of isotretinoin and vitamin D levels on severe acne vulgaris. Turk J Med Sci. 2023;53:1732. doi:10.55730/1300-0144.5742
  5. Mahran A, Ghazally A, Ali AS, Bakr RM. Efficacy and safety of calcipotriol as a potential topical treatment of acne vulgaris: a randomized, controlled, triple blinded, split-face clinical trial. Clin Exp Dermatol. 2024;49:348. doi:10.1093/ced/llad371
  6. Iqbal T, Asim SA, Bhatti S, Sajid M, Mirza R, et al. Association of Vitamin D with Moderate to Severe Acne Vulgaris. J Coll Physicians Surg Pak. 2023;33:527. doi:10.29271/jcpsp.2023.05.527
  7. Abdel-Wahab HM, Ali AK, Ragaie MH. Calcipotriol: A novel tool in treatment of acne vulgaris. Dermatol Ther. 2022;35:e15690. doi:10.1111/dth.15690
  8. Rasti SD, Dewinta NR, Kamal RH, Adissadah AF, Madanny AE, et al. Correlation between Serum 25-Hydroxy Vitamin D Levels and the Severity of Acne Vulgaris: A Systematic Review. Indian J Dermatol. 2022;67:31. doi:10.4103/ijd.ijd_871_21
  9. Shrestha S, Agrawal S, Lamsal M. Vitamin D level in patients with moderate-to-severe acne: A case-control study combined with prospective study following oral isotretinoin treatment. J Cosmet Dermatol. 2022;21:5127. doi:10.1111/jocd.14996
  10. Singh A, Khurana A, Sardana K, Dixit N, Chitkara A. Correlation of Serum 25-Hydroxy Vitamin D and Interleukin-17 Levels with Disease Severity in Acne Vulgaris. Indian J Dermatol. 2021;66:291. doi:10.4103/ijd.IJD_551_19
  11. Hasamoh Y, Thadanipon K, Juntongjin P. Association between Vitamin D Level and Acne, and Correlation with Disease Severity: A Meta-Analysis. Dermatology. 2022;238:404. doi:10.1159/000517514
  12. Wang M, Zhou Y, Yan Y. Vitamin D status and efficacy of vitamin D supplementation in acne patients: A systematic review and meta-analysis. J Cosmet Dermatol. 2021;20:3802. doi:10.1111/jocd.14057
  13. Singh A, Dorjay K, Sinha S, Chitkara A. The interplay of vitamin D and body mass index in acne patients vs. controls. J Cosmet Dermatol. 2021;20:3689. doi:10.1111/jocd.14034
  14. Kemeriz F, Tuncer SÇ, Acar EM, Tuğrul B. Evaluation of 25-hydroxy vitamin D levels and disease severity in patients with acne vulgaris. Dermatol Ther. 2020;33:e13393. doi:10.1111/dth.13393
  15. Dahlan NH, Sitohang IBS, Indriatmi W, Wibowo H, Enggy LE. Correlation Between Reduced IL-1β Levels in Acne Lesions and the Decrease in Acne Inflammatory Lesions Following Topical Vitamin D Administration: A Double-Blind Randomized Controlled Trial. Clin Cosmet Investig Dermatol. 2024;17:2183. doi:10.2147/CCID.S475068
  16. Singh A, Dorjay K, Sinha S, Chitkara A. The interplay of vitamin D and body mass index in acne patients vs. controls. J Cosmet Dermatol. 2021;20:3689. doi:10.1111/jocd.14034
  17. Ramanan EA, Ravi S, Anbu KRR, Michael M. Efficacy and Safety of Tracnil™ Administration in Patients with Dermatological Manifestations of PCOS: An Open-Label Single-Arm Study. Dermatol Res Pract. 2020;2020:7019126. doi:10.1155/2020/7019126
  18. Abd-Elmaged WM, Nada EA, Hassan MH, Elsadek BEM, Abdelrahim EA, et al. Lesional and circulating levels of interleukin-17 and 25-hydroxycholecalciferol in active acne vulgaris: Correlation to disease severity. J Cosmet Dermatol. 2019;18:671. doi:10.1111/jocd.12715
  19. Sardana K, Verma G. and the Th1/Th17 Axis, Implications in Acne Pathogenesis and Treatment. Indian J Dermatol. 2017;62:392. doi:10.4103/ijd.IJD_483_16
  20. Zouboulis CC, Seltmann H, Abdel-Naser MB, Hossini AM, Menon GK, et al. Effects of Extracellular Calcium and 1,25 dihydroxyvitamin D3 on Sebaceous Gland Cells In vitro and In vivo. Acta Derm Venereol. 2017;97:313. doi:10.2340/00015555-2525
  21. Lim SK, Ha JM, Lee YH, Lee Y, Seo YJ, et al. Comparison of Vitamin D Levels in Patients with and without Acne: A Case-Control Study Combined with a Randomized Controlled Trial. PLoS One. 2016;11:e0161162. doi:10.1371/journal.pone.0161162
  22. Nieves NJ, Ahrens JM, Plum LA, DeLuca HF, Clagett-Dame M. Identification of a unique subset of 2-methylene-19-nor analogs of vitamin D with comedolytic activity in the rhino mouse. J Invest Dermatol. 2010;130:2359. doi:10.1038/jid.2010.142
  23. Reichrath J. Vitamin D and the skin: an ancient friend, revisited. Exp Dermatol. 2007;16:618.
  24. Hayashi N, Watanabe H, Yasukawa H, Uratsuji H, Kanazawa H, et al. Comedolytic effect of topically applied active vitamin D3 analogue on pseudocomedones in the rhino mouse. Br J Dermatol. 2006;155:895.
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