Overview

SCIENTIFIC SCORE
Possibly Effective
Based on 18 Researches
7.7
USERS' SCORE
Good
Based on 139 Reviews
8
Supplement Facts
Serving Size:  1 Lozenge
Amount Per Serving
%DV
Calories
<5
 
Total Carbohydrate
<1 g
<1%**
Total Sugars
0 g
Includes 0 g Added Sugars
 
0%**
Xylitol
<1 g
Vitamin C (as Ascorbic Acid)
100 mg
111%
Zinc (elemental) (from 15 mg Zinc Bisglycinate) (TRAACS™)
3 mg
27%
Elderberry (10:1 Concentrate)(Sambucus nigra) (Fruit)
150 mg

Top Medical Research Studies

We delved into how elderberry, specifically from the black elderberry fruit, impacts the flu virus, H1N1. Using an innovative technique called Direct Analysis in Real Time Mass Spectrometry (DART TOF-MS), we were able to identify the powerful anti-viral properties of elderberry extract without the need for complicated processes like separation or derivatization.

Our findings revealed that elderberry extract does indeed inhibit H1N1 infection in a lab setting, with an effective concentration (IC50) of 252 micrograms per milliliter. Interestingly, we discovered that flavonoids present in the elderberry bind to H1N1 virions—essentially blocking their ability to infect host cells.

Among the compounds, two key flavonoids emerged: the 5,7,3',4'-tetra-O-methylquercetin and dihydromyricetin. These compounds not only bound to the virus but also effectively prevented infection. Notably, the tetra-O-methylquercetin demonstrated an impressive IC50 of just 0.13 micrograms per milliliter, which is comparable to well-known antiviral medications like Oseltamivir and Amantadine.

In summary, elderberry shows promising potential as a natural remedy against the H1N1 flu, offering a fascinating area for further research and utilization in flu prevention strategies.
Read More
8
Elderberry effective against flu pathogens
We aimed to investigate the effectiveness of a standardized elderberry extract against influenza viruses and respiratory bacterial pathogens. The study utilized liquid cultures to examine how various concentrations of the elderberry extract—specifically 5%, 10%, 15%, and 20%—inhibited bacterial growth.

Our findings revealed that the elderberry extract is not just a potential ally against flu viruses, but also demonstrates activity against several harmful bacteria. We specifically tested its effects on both H5N1-type influenza A and influenza B viruses using reputable laboratory methods.

The results suggest that elderberry could offer additional strategies for combating infections, particularly during the flu season when complications often arise from bacterial super-infections following viral illnesses. These findings encourage the exploration of natural products like elderberry as a supportive treatment for respiratory infections.
Read More
8
Vitamin C mitigates flu pneumonia
We examined the effects of vitamin C on pneumonia caused by the influenza virus, specifically the H1N1 strain, in mice under stress. The study found that when exposed to restraint stress, the mice experienced increased mortality and more severe pneumonia symptoms.

However, by giving them oral vitamin C at doses of 125 and 250 mg/kg, we observed a significant reduction in these severe outcomes. Vitamin C seemed to modulate the expression of certain genes related to the immune response, such as MAVS and IRF3, and increased the expression of NF-κB, which plays a key role in the body's antiviral defense.

Our research suggested that vitamin C's protective effects might stem from its ability to inhibit excess cortisol production in the adrenal gland, which is often elevated due to stress. By lowering cortisol levels, vitamin C may help reduce susceptibility to influenza infections, making it a potential ally during the flu season, especially for those experiencing stress.

Through these findings, we highlighted a new mechanism for how vitamin C can be beneficial during influenza infections, particularly for those who are feeling overwhelmed.
Read More

Most Useful Reviews

9
Family-friendly lozenges
25 people found this helpful
A staple in our first aid kit! This great product is suitable for children. We take it for prevention with one lozenge daily, and when ARVI symptoms arise, we increase to three a day. My daughters, aged three, take half a lozenge twice a day for ARVI. Conveniently, this product is in lozenge form for easy transport, and my daughter prefers it to effervescent tablets. Research confirms that black elderberry compounds effectively combat the influenza virus.
Read More
9
Helps block flu viruses
5 people found this helpful
Elderberry flowers and berries are renowned for relieving coughs and boosting the immune system. Rich in antioxidants and antimicrobial properties, they block respiratory viruses from entering cells. Elderberry has a direct anti-influenza action, effectively enhancing immunity. It’s a safe alternative to synthetic remedies and excellent for children who often fall ill.
Read More
9
Proven effectiveness
4 people found this helpful
Black elderberry preparations are remarkably effective in strengthening the immune system, along with important ingredients like zinc and vitamin C. They provide robust support to help family members maintain their health year-round. The healing effects of black elderberry have been recognised in Europe for centuries, and modern clinical studies show that it can strengthen the immune system during seasonal illnesses and alleviate colds and flu symptoms. This is a high-quality supplement with a substantial dose of the active substance, offering an advantage over many alternatives.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 18 Researches
7.7
  • All Researches
9
Immune booster for flu treatment
We set out to discover how red ginseng and vitamin C work together to enhance immune cell function and fight off viral infections like the flu. In our investigation, we treated human immune cells and specific types of mice unable to produce vitamin C, looking closely at their reaction to influenza A virus/H1N1.

Our findings were quite promising. We observed that both red ginseng and vitamin C elevated the activation levels of immune cells, particularly T-cells and natural killer (NK) cells, known for their vital role in combating viruses. This combination not only helped boost immune cell activity but also reduced lung inflammation caused by the influenza virus, which is crucial for better survival rates during infections.

In cases where vitamin C levels were low in a specific mouse model, we noted that the added nutrients significantly improved their condition. They experienced reduced viral load and inflammation in their lungs after receiving red ginseng and vitamin C, compared to those without this supplementation. These insights suggest that while red ginseng and vitamin C collectively support immune health, the interplay of these substances can be crucial in managing flu infections effectively.
Read More
We investigated the potential of zinc in combination with herbal polyphenols and copper to reduce the infectivity of respiratory RNA viruses, including the flu. This study is particularly timely due to the ongoing challenges posed by viruses like SARS-CoV-2, highlighting the need for effective therapeutic solutions.

Zinc ions are known to play a role in modulating viral RNA replication, which makes them an appealing option for decreasing viral loads and infectivity. However, a significant challenge is that the natural concentration of zinc in our cells is often too low for effective results. To tackle this, we combined zinc picolinate, a form of zinc that’s easier for the body to absorb, with a range of flavonoids—natural compounds renowned for their antioxidant properties and existing antiviral effects.

We ensured that these combinations were safe by assessing their impact on cultured cells, confirming that they didn’t harm cell viability. When tested further, our results revealed an impressive 50-95% reduction in viral genome replication levels across a variety of respiratory RNA viruses, including the flu virus, which suggests that this combination therapy could be promising in the fight against such illnesses.

Overall, our findings highlight an innovative approach to treating viral infections that is non-toxic, derived from nature, and may remain effective against emerging viral strains.
Read More
9
Elderberry enhances immune response
We explored how European black elderberry affects the immune response, particularly regarding flu infections. Through comparing its water extract and polysaccharide fractions to a traditional alcoholic extract, we focused on the role of dendritic cells (DCs), which are crucial for triggering strong T cell responses.

Our findings showed that the water extract and its polysaccharide components effectively matured DCs, enhancing their ability to stimulate T cells significantly. In contrast, the traditional alcoholic extract did not demonstrate any capacity to induce T cell stimulation.

We also observed that the water extracts promoted the production of key inflammatory cytokines like IL-6, TNF-α, and IFN-γ, contributing to a robust immune response, which may be beneficial in fighting off viruses like influenza. Thus, it appears that the polysaccharides from elderberry extracts can play a significant role in modulating the immune system, potentially equipping us to better combat viral threats.
Read More
9
Elderberry shows promise for flu relief
We assessed the effectiveness of black elderberry (Sambucus nigra) in treating upper respiratory symptoms, particularly those associated with the flu. The study included 180 participants and examined various factors, such as vaccination status and the underlying causes of symptoms.

Our findings indicated that elderberry supplementation significantly reduced upper respiratory symptoms, offering a promising alternative for those seeking relief without relying on over-the-counter medications or antibiotics. The analysis revealed a strong positive impact, suggesting that elderberry could be particularly beneficial for treating symptoms arising from viral infections.

Overall, this research indicates that elderberry can serve as a safer, effective option for managing flu symptoms and common colds. This could help address concerns about antibiotic misuse and provide a more natural remedy during flu season.
Read More
We delved into how elderberry, specifically from the black elderberry fruit, impacts the flu virus, H1N1. Using an innovative technique called Direct Analysis in Real Time Mass Spectrometry (DART TOF-MS), we were able to identify the powerful anti-viral properties of elderberry extract without the need for complicated processes like separation or derivatization.

Our findings revealed that elderberry extract does indeed inhibit H1N1 infection in a lab setting, with an effective concentration (IC50) of 252 micrograms per milliliter. Interestingly, we discovered that flavonoids present in the elderberry bind to H1N1 virions—essentially blocking their ability to infect host cells.

Among the compounds, two key flavonoids emerged: the 5,7,3',4'-tetra-O-methylquercetin and dihydromyricetin. These compounds not only bound to the virus but also effectively prevented infection. Notably, the tetra-O-methylquercetin demonstrated an impressive IC50 of just 0.13 micrograms per milliliter, which is comparable to well-known antiviral medications like Oseltamivir and Amantadine.

In summary, elderberry shows promising potential as a natural remedy against the H1N1 flu, offering a fascinating area for further research and utilization in flu prevention strategies.
Read More

User Reviews

USERS' SCORE
Good
Based on 139 Reviews
8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Family-friendly lozenges
25 people found this helpful
A staple in our first aid kit! This great product is suitable for children. We take it for prevention with one lozenge daily, and when ARVI symptoms arise, we increase to three a day. My daughters, aged three, take half a lozenge twice a day for ARVI. Conveniently, this product is in lozenge form for easy transport, and my daughter prefers it to effervescent tablets. Research confirms that black elderberry compounds effectively combat the influenza virus.
Read More
9
Helps block flu viruses
5 people found this helpful
Elderberry flowers and berries are renowned for relieving coughs and boosting the immune system. Rich in antioxidants and antimicrobial properties, they block respiratory viruses from entering cells. Elderberry has a direct anti-influenza action, effectively enhancing immunity. It’s a safe alternative to synthetic remedies and excellent for children who often fall ill.
Read More
9
Proven effectiveness
4 people found this helpful
Black elderberry preparations are remarkably effective in strengthening the immune system, along with important ingredients like zinc and vitamin C. They provide robust support to help family members maintain their health year-round. The healing effects of black elderberry have been recognised in Europe for centuries, and modern clinical studies show that it can strengthen the immune system during seasonal illnesses and alleviate colds and flu symptoms. This is a high-quality supplement with a substantial dose of the active substance, offering an advantage over many alternatives.
Read More
9
Nature's protection
3 people found this helpful
Black elderberry extract offers the best natural protection. The healing effects of black elderberry have long been appreciated in Europe, with recent studies showing its ability to enhance the immune system during seasonal ailments and combat colds and flu symptoms. This product is of great quality and contains a high dose of active ingredients, providing strong support for the immune system and ensuring health for all family members throughout the year.
Read More
10
Kicks flu virus
This supplement is extraordinary for the cold and flu season! At the first sign of a tickle in my throat, I take it, and my body effectively combats the virus.
Read More

Frequently Asked Questions

9
Effective for flu
This is the best medicine for flu and colds. At the first symptoms of flu, I take a capsule of elderberry and zinc, drink warm liquids with vitamin C, and by morning, I feel better. With this vitamin, flu resolves without complications—better than antibiotics that can harm immunity.
9
Quick relief for kids
This product is a staple in my first aid kit. It contains elderberry, and I give it to my child as soon as they start to feel unwell. Pleasant and sweet, they happily dissolve them. The effect is noticeable within a day, helping us to overcome and prevent severe colds and flu. Plus, 60 pieces last us a long time.
9
Helps block flu viruses
5 people found this helpful
Elderberry flowers and berries are renowned for relieving coughs and boosting the immune system. Rich in antioxidants and antimicrobial properties, they block respiratory viruses from entering cells. Elderberry has a direct anti-influenza action, effectively enhancing immunity. It’s a safe alternative to synthetic remedies and excellent for children who often fall ill.
10
Immunity booster
This is a very cool and effective supplement. I have bought it multiple times and confirm that it works. In kindergarten, everyone has been ill with the flu and scarlet fever recently; my little one only had a slight runny nose for a few days. He takes vitamin D, omega, and this supplement for immunity! I'm very satisfied and will purchase again.
9
Effective against flu
Excellent! This elderberry syrup not only boosts immunity for both children and adults but shows effectiveness against the H1N1 flu strain, comparable to Tamiflu. Taking it at the onset of illness can prevent severe symptoms, or at least lead to a mild cold.
9
Proven effectiveness
4 people found this helpful
Black elderberry preparations are remarkably effective in strengthening the immune system, along with important ingredients like zinc and vitamin C. They provide robust support to help family members maintain their health year-round. The healing effects of black elderberry have been recognised in Europe for centuries, and modern clinical studies show that it can strengthen the immune system during seasonal illnesses and alleviate colds and flu symptoms. This is a high-quality supplement with a substantial dose of the active substance, offering an advantage over many alternatives.
9
Prevented flu symptoms
Until this year, I usually felt unwell during winter, particularly during flu outbreaks, often experiencing a raised temperature. I typically took vitamin C and echinacea tincture as prevention, which helped, but this winter I avoided such issues altogether thanks to this remarkable supplement containing elderberry extract and zinc.
9
Family-friendly lozenges
25 people found this helpful
A staple in our first aid kit! This great product is suitable for children. We take it for prevention with one lozenge daily, and when ARVI symptoms arise, we increase to three a day. My daughters, aged three, take half a lozenge twice a day for ARVI. Conveniently, this product is in lozenge form for easy transport, and my daughter prefers it to effervescent tablets. Research confirms that black elderberry compounds effectively combat the influenza virus.
9
Excellent immune booster
An exceptional immune booster for both children and adults during seasonal colds and flu. I give my children one tablet daily for two weeks, and we remain well.
9
Family favourite
Excellent! These lozenges are perfect for flu and colds; my family takes them during viral infections. They work effectively.
7
Vitamin C's promise against flu
We examined how vitamin C supplementation can impact flu incidence and symptom duration. Our analysis of clinical studies indicated that vitamin C does show promise in reducing the risk of acute respiratory infections, including flu. Specifically, vitamin C reduced the likelihood of catching an acute respiratory infection by approximately 4% (risk ratio of 0.96).

Additionally, we observed that vitamin C also helps shorten the duration of flu symptoms by around 9%. This effect seemed to be more pronounced in men and people from middle-income countries, highlighting the complexity of health factors influenced by gender and socio-economic status.

Overall, while the findings suggest vitamin C can be a modicum of hope in managing flu symptoms, it isn't a standalone solution. Our results advocate for more research to fully understand the impact of vitamin C, especially in the context of the ongoing challenges posed by various respiratory viruses, including influenza.
9
Immune booster for flu treatment
We set out to discover how red ginseng and vitamin C work together to enhance immune cell function and fight off viral infections like the flu. In our investigation, we treated human immune cells and specific types of mice unable to produce vitamin C, looking closely at their reaction to influenza A virus/H1N1.

Our findings were quite promising. We observed that both red ginseng and vitamin C elevated the activation levels of immune cells, particularly T-cells and natural killer (NK) cells, known for their vital role in combating viruses. This combination not only helped boost immune cell activity but also reduced lung inflammation caused by the influenza virus, which is crucial for better survival rates during infections.

In cases where vitamin C levels were low in a specific mouse model, we noted that the added nutrients significantly improved their condition. They experienced reduced viral load and inflammation in their lungs after receiving red ginseng and vitamin C, compared to those without this supplementation. These insights suggest that while red ginseng and vitamin C collectively support immune health, the interplay of these substances can be crucial in managing flu infections effectively.
We investigated the effects of various compounds, including vitamin C, on the neuraminidase (NA) activity of influenza viruses, specifically H1N1 and H5N2. Neuraminidase is crucial for the virus as it helps release new viral particles from infected cells, making it a key target for antiviral treatments.

In this study, we focused on five different compounds that are structurally distinct from sialic acid, which is the natural substrate of neuraminidase. Among those tested, vitamin C was one of the compounds alongside others like acetyl phenylalanylmethionine and propanoic acid derivatives. We found that these compounds inhibited NA activity, but the degree of inhibition varied.

Notably, the inhibition we observed was in the millimolar range, which suggests that while there is some effect, the affinity of vitamin C to inhibit neuraminidase is moderate compared to the reference drug zanamivir. The IC values for the compounds ranged from 6.4 to 73 mM, indicating that they are not as potent as zanamivir.

Overall, our study presents vitamin C and other small organic molecules as potential lead compounds for developing new neuraminidase inhibitors, even if vitamin C’s impact on flu remains to be clarified as part of a broader analysis of multiple compounds.

References

  1. Abioye AI, Bromage S, Fawzi W. Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis. BMJ Glob Health. 2021;6. doi:10.1136/bmjgh-2020-003176
  2. Márquez-Domínguez L, Reyes-Leyva J, Herrera-Camacho I, Santos-López G, Scior T. Five Novel Non-Sialic Acid-Like Scaffolds Inhibit In Vitro H1N1 and H5N2 Neuraminidase Activity of Influenza a Virus. Molecules. 2020;25. doi:10.3390/molecules25184248
  3. Kim H, Jang M, Kim Y, Choi J, Jeon J, et al. Red ginseng and vitamin C increase immune cell activity and decrease lung inflammation induced by influenza A virus/H1N1 infection. J Pharm Pharmacol. 2016;68:406. doi:10.1111/jphp.12529
  4. Wang H, Xu R, Shi Y, Si L, Jiao P, et al. Design, synthesis and biological evaluation of novel L-ascorbic acid-conjugated pentacyclic triterpene derivatives as potential influenza virus entry inhibitors. Eur J Med Chem. 2016;110:376. doi:10.1016/j.ejmech.2016.01.005
  5. Cai Y, Li YF, Tang LP, Tsoi B, Chen M, et al. A new mechanism of vitamin C effects on A/FM/1/47(H1N1) virus-induced pneumonia in restraint-stressed mice. Biomed Res Int. 2015;2015:675149. doi:10.1155/2015/675149
  6. Muniz FWMG, Casarin M, Pola NM, Rösing CK, Silveira TMD, et al. Efficacy of regular gargling with a cetylpyridinium chloride plus zinc containing mouthwash can reduce upper respiratory symptoms. PLoS One. 2025;20:e0316807. doi:10.1371/journal.pone.0316807
  7. Nishi K, Yoshimoto S, Nishi S, Nishi T, Nishi R, et al. Epipharyngeal Abrasive Therapy Down-regulates the Expression of Cav1.2: A Key Molecule in Influenza Virus Entry. In Vivo. 2022;36:2357. doi:10.21873/invivo.12967
  8. Kreiser T, Zaguri D, Sachdeva S, Zamostiano R, Mograbi J, et al. Inhibition of Respiratory RNA Viruses by a Composition of Ionophoric Polyphenols with Metal Ions. Pharmaceuticals (Basel). 2022;15. doi:10.3390/ph15030377
  9. Nakashima A, Horio Y, Suzuki K, Isegawa Y. Antiviral Activity and Underlying Action Mechanism of Euglena Extract against Influenza Virus. Nutrients. 2021;13. doi:10.3390/nu13113911
  10. Sadeghsoltani F, Mohammadzadeh I, Safari MM, Hassanpour P, Izadpanah M, et al. Zinc and Respiratory Viral Infections: Important Trace Element in Anti-viral Response and Immune Regulation. Biol Trace Elem Res. 2022;200:2556. doi:10.1007/s12011-021-02859-z
  11. Stich L, Plattner S, McDougall G, Austin C, Steinkasserer A. Polysaccharides from European Black Elderberry Extract Enhance Dendritic Cell Mediated T Cell Immune Responses. Int J Mol Sci. 2022;23. doi:10.3390/ijms23073949
  12. Wieland LS, Piechotta V, Feinberg T, Ludeman E, Hutton B, et al. Elderberry for prevention and treatment of viral respiratory illnesses: a systematic review. BMC Complement Med Ther. 2021;21:112. doi:10.1186/s12906-021-03283-5
  13. Hawkins J, Baker C, Cherry L, Dunne E. Black elderberry (Sambucus nigra) supplementation effectively treats upper respiratory symptoms: A meta-analysis of randomized, controlled clinical trials. Complement Ther Med. 2019;42:361. doi:10.1016/j.ctim.2018.12.004
  14. Shahsavandi S, Ebrahimi MM, Hasaninejad Farahani A. Interfering With Lipid Raft Association: A Mechanism to Control Influenza Virus Infection By . Iran J Pharm Res. 2017;16:1147.
  15. Holst L, Havnen GC, Nordeng H. Echinacea and elderberry-should they be used against upper respiratory tract infections during pregnancy?. Front Pharmacol. 2014;5:31. doi:10.3389/fphar.2014.00031
  16. Kinoshita E, Hayashi K, Katayama H, Hayashi T, Obata A. Anti-influenza virus effects of elderberry juice and its fractions. Biosci Biotechnol Biochem. 2012;76:1633.
  17. Krawitz C, Mraheil MA, Stein M, Imirzalioglu C, Domann E, et al. Inhibitory activity of a standardized elderberry liquid extract against clinically-relevant human respiratory bacterial pathogens and influenza A and B viruses. BMC Complement Altern Med. 2011;11:16. doi:10.1186/1472-6882-11-16
  18. Roschek B, Fink RC, McMichael MD, Li D, Alberte RS. Elderberry flavonoids bind to and prevent H1N1 infection in vitro. Phytochemistry. 2009;70:1255. doi:10.1016/j.phytochem.2009.06.003
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