Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 5 Researches
8.2
USERS' SCORE
Medium or Average
Based on 78 Reviews
6.8
Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving
%DV
Zinc (as Zinc bisglycinate)
30 mg
273%

Top Medical Research Studies

8
Zinc treatment impacts flu virus entry
In our study, we examined how epipharyngeal abrasive therapy (EAT), which includes the use of zinc chloride, affects the expression of a key molecule known as Cav1.2. This molecule is essential for the influenza virus to enter cells, making it a crucial target in flu prevention strategies.

We compared two groups of patients: those who received EAT and those who did not. Our findings revealed that the levels of Cav1.2 were significantly lower in the EAT group, at a striking 4.19 times less than in the non-treated group. This suggests that the squamous metaplasia induced by EAT—which is a process of changing the epithelium—could be a beneficial approach to limiting flu infections.

The results of the study highlight zinc's potential indirect role in flu prevention by remarking on its contribution to lowering the expression of a critical receptor for the virus. Although we didn't isolate the effects of zinc alone, the findings indicate that treatments involving zinc, like EAT, may offer a straightforward way to help limit the impact of influenza.
Read More
8
Euglena extract aids flu defense
We set out to uncover how Euglena extract might help combat influenza, particularly focusing on its components like zinc. This microalga, known for its nutritional benefits, has shown promise in alleviating flu symptoms in mice. Our investigation revealed that Euglena extract significantly inhibited various strains of the influenza virus, including those that resist traditional antiviral medications like oseltamivir and amantadine.

Through our research involving Madin-Darby canine kidney (MDCK) cells, we discovered that the extract doesn't disrupt the virus's replication cycle directly. Instead, it appears to bolster the host's defenses, which means it enhances our body's natural ability to fight off the virus. One of the key contributors to this antiviral activity seems to be the minerals present in the extract, particularly zinc.

Overall, this study suggests that Euglena extract could be a promising tool for flu prevention and treatment. Its potential benefits highlight the need for new approaches in tackling influenza, especially with the rise of drug-resistant strains. Our findings advocate for further exploration into how zinc and other components in Euglena can enhance our defenses against influenza.
Read More
We explored the role of zinc in supporting our immune system, especially in the fight against influenza. The studies suggest that zinc might be beneficial in reducing the viral load during flu infections.

Evidence shows that zinc can decrease the severity of symptoms associated with viral pneumonia, which is often a complication of influenza. Additionally, it appears to have a positive impact on the overall recovery process, potentially shortening the duration of illness.

We also noted that zinc may enhance the effectiveness of certain COVID-19 treatments, which gives further credence to its immune-boosting properties. However, the precise relationship between zinc levels and vaccine effectiveness, particularly for flu vaccines, remains complex and requires more investigation.

Ultimately, our understanding indicates that incorporating zinc into our regimen could provide an additional layer of defense against the flu virus while supporting our immune health.
Read More

Most Useful Reviews

9
Relief from flu
5 people found this helpful
Great Zinc! I ordered it in the autumn, and it helps with colds and flu. I use it myself, and my family are very satisfied! It’s definitely a good product with no side effects noticed. If feeling unwell, I recommend increasing the dosage to 3 capsules for 4 to 5 days; it becomes easier immediately!
Read More
9
Immediate cold relief
3 people found this helpful
Good Zinc! At the first sign of a cold, I take it with another supplement, and the effect is immediate. This winter, my family didn't experience flu or colds, largely thanks to our zinc and vitamin D intake.
Read More
9
Quick cold relief
3 people found this helpful
My go-to remedy for sniffles! When I feel a cold or flu coming on, I take zinc with vitamin C and D3, and by the next day I'm well again. It works like a charm.
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 5 Researches
8.2
  • All Researches
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
In our evaluation of how zinc can impact flu symptoms, we observed a study that examined the effects of gargling with an antimicrobial mouthwash containing zinc and cetylpyridinium chloride.

A total of 150 individuals participated, divided into two groups: one group followed a regular oral hygiene routine with fluoride toothpaste, while the other group followed the same routine but added gargling with a mouthwash containing 0.075% zinc.

The results revealed that regular gargling with this mouthwash helped reduce the frequency and severity of upper respiratory symptoms, with participants using the mouthwash showing a 21.5% lower frequency and 11% reduced severity in symptoms.

However, it's important to note that the study did not isolate the effects of zinc, leaving questions about the specific contributions of this mineral to the overall findings. Therefore, while we can see that the mouthwash appears beneficial, we cannot definitively attribute its effects solely to zinc.
Read More
8
Zinc treatment impacts flu virus entry
In our study, we examined how epipharyngeal abrasive therapy (EAT), which includes the use of zinc chloride, affects the expression of a key molecule known as Cav1.2. This molecule is essential for the influenza virus to enter cells, making it a crucial target in flu prevention strategies.

We compared two groups of patients: those who received EAT and those who did not. Our findings revealed that the levels of Cav1.2 were significantly lower in the EAT group, at a striking 4.19 times less than in the non-treated group. This suggests that the squamous metaplasia induced by EAT—which is a process of changing the epithelium—could be a beneficial approach to limiting flu infections.

The results of the study highlight zinc's potential indirect role in flu prevention by remarking on its contribution to lowering the expression of a critical receptor for the virus. Although we didn't isolate the effects of zinc alone, the findings indicate that treatments involving zinc, like EAT, may offer a straightforward way to help limit the impact of influenza.
Read More
8
Euglena extract aids flu defense
We set out to uncover how Euglena extract might help combat influenza, particularly focusing on its components like zinc. This microalga, known for its nutritional benefits, has shown promise in alleviating flu symptoms in mice. Our investigation revealed that Euglena extract significantly inhibited various strains of the influenza virus, including those that resist traditional antiviral medications like oseltamivir and amantadine.

Through our research involving Madin-Darby canine kidney (MDCK) cells, we discovered that the extract doesn't disrupt the virus's replication cycle directly. Instead, it appears to bolster the host's defenses, which means it enhances our body's natural ability to fight off the virus. One of the key contributors to this antiviral activity seems to be the minerals present in the extract, particularly zinc.

Overall, this study suggests that Euglena extract could be a promising tool for flu prevention and treatment. Its potential benefits highlight the need for new approaches in tackling influenza, especially with the rise of drug-resistant strains. Our findings advocate for further exploration into how zinc and other components in Euglena can enhance our defenses against influenza.
Read More
We explored the role of zinc in supporting our immune system, especially in the fight against influenza. The studies suggest that zinc might be beneficial in reducing the viral load during flu infections.

Evidence shows that zinc can decrease the severity of symptoms associated with viral pneumonia, which is often a complication of influenza. Additionally, it appears to have a positive impact on the overall recovery process, potentially shortening the duration of illness.

We also noted that zinc may enhance the effectiveness of certain COVID-19 treatments, which gives further credence to its immune-boosting properties. However, the precise relationship between zinc levels and vaccine effectiveness, particularly for flu vaccines, remains complex and requires more investigation.

Ultimately, our understanding indicates that incorporating zinc into our regimen could provide an additional layer of defense against the flu virus while supporting our immune health.
Read More

User Reviews

USERS' SCORE
Medium or Average
Based on 78 Reviews
6.8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Relief from flu
5 people found this helpful
Great Zinc! I ordered it in the autumn, and it helps with colds and flu. I use it myself, and my family are very satisfied! It’s definitely a good product with no side effects noticed. If feeling unwell, I recommend increasing the dosage to 3 capsules for 4 to 5 days; it becomes easier immediately!
Read More
9
Immediate cold relief
3 people found this helpful
Good Zinc! At the first sign of a cold, I take it with another supplement, and the effect is immediate. This winter, my family didn't experience flu or colds, largely thanks to our zinc and vitamin D intake.
Read More
9
Quick cold relief
3 people found this helpful
My go-to remedy for sniffles! When I feel a cold or flu coming on, I take zinc with vitamin C and D3, and by the next day I'm well again. It works like a charm.
Read More
10
Significant improvement
1 people found this helpful
Excellent! I have been taking this supplement for a month now and noticed a significant improvement in my overall health. It has positively impacted my immune system—as I have not had a cold or flu since starting it. Additionally, I’ve seen improved blood clotting, aiding quicker healing of small cuts. My hair and skin health has also enhanced, with my hair feeling thicker and my skin appearing clearer and brighter. A top-quality product for overall health!
Read More
10
Magical effect
Great! During cold and flu season, one capsule acts as a preventive measure against viruses! It works magically!
Read More

Frequently Asked Questions

9
Effective against flu
Zinc genuinely boosts immunity and is beneficial for skin issues like acne. As soon as I feel unwell, I take a loading dose of zinc and other vitamins. Within three days, symptoms often subside, preventing further complications and the need for antibiotics.
9
Immediate cold relief
3 people found this helpful
Good Zinc! At the first sign of a cold, I take it with another supplement, and the effect is immediate. This winter, my family didn't experience flu or colds, largely thanks to our zinc and vitamin D intake.
9
Relief from flu
5 people found this helpful
Great Zinc! I ordered it in the autumn, and it helps with colds and flu. I use it myself, and my family are very satisfied! It’s definitely a good product with no side effects noticed. If feeling unwell, I recommend increasing the dosage to 3 capsules for 4 to 5 days; it becomes easier immediately!
10
Significant improvement
1 people found this helpful
Excellent! I have been taking this supplement for a month now and noticed a significant improvement in my overall health. It has positively impacted my immune system—as I have not had a cold or flu since starting it. Additionally, I’ve seen improved blood clotting, aiding quicker healing of small cuts. My hair and skin health has also enhanced, with my hair feeling thicker and my skin appearing clearer and brighter. A top-quality product for overall health!
9
Powerful tablets
These tablets are very effective for colds and flu. They significantly boost immunity with an optimal dosage. They even help restore odour after covid.
9
Smooth recovery
Excellent! It helped immensely during the flu. At the first symptoms, I took it with vitamins C and D3. I managed the illness very easily, with no complications.
9
Excellent for flu
This drug is excellent and a true helper for any cold or flu. In the first few days, I take a double dose, and everything clears up. I also take it in courses, and my skin and hair have improved.
In our evaluation of how zinc can impact flu symptoms, we observed a study that examined the effects of gargling with an antimicrobial mouthwash containing zinc and cetylpyridinium chloride.

A total of 150 individuals participated, divided into two groups: one group followed a regular oral hygiene routine with fluoride toothpaste, while the other group followed the same routine but added gargling with a mouthwash containing 0.075% zinc.

The results revealed that regular gargling with this mouthwash helped reduce the frequency and severity of upper respiratory symptoms, with participants using the mouthwash showing a 21.5% lower frequency and 11% reduced severity in symptoms.

However, it's important to note that the study did not isolate the effects of zinc, leaving questions about the specific contributions of this mineral to the overall findings. Therefore, while we can see that the mouthwash appears beneficial, we cannot definitively attribute its effects solely to zinc.
We explored the role of zinc in supporting our immune system, especially in the fight against influenza. The studies suggest that zinc might be beneficial in reducing the viral load during flu infections.

Evidence shows that zinc can decrease the severity of symptoms associated with viral pneumonia, which is often a complication of influenza. Additionally, it appears to have a positive impact on the overall recovery process, potentially shortening the duration of illness.

We also noted that zinc may enhance the effectiveness of certain COVID-19 treatments, which gives further credence to its immune-boosting properties. However, the precise relationship between zinc levels and vaccine effectiveness, particularly for flu vaccines, remains complex and requires more investigation.

Ultimately, our understanding indicates that incorporating zinc into our regimen could provide an additional layer of defense against the flu virus while supporting our immune health.
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.
8
Euglena extract aids flu defense
We set out to uncover how Euglena extract might help combat influenza, particularly focusing on its components like zinc. This microalga, known for its nutritional benefits, has shown promise in alleviating flu symptoms in mice. Our investigation revealed that Euglena extract significantly inhibited various strains of the influenza virus, including those that resist traditional antiviral medications like oseltamivir and amantadine.

Through our research involving Madin-Darby canine kidney (MDCK) cells, we discovered that the extract doesn't disrupt the virus's replication cycle directly. Instead, it appears to bolster the host's defenses, which means it enhances our body's natural ability to fight off the virus. One of the key contributors to this antiviral activity seems to be the minerals present in the extract, particularly zinc.

Overall, this study suggests that Euglena extract could be a promising tool for flu prevention and treatment. Its potential benefits highlight the need for new approaches in tackling influenza, especially with the rise of drug-resistant strains. Our findings advocate for further exploration into how zinc and other components in Euglena can enhance our defenses against influenza.

References

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
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