Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8.3
USERS' SCORE
Moderately Good
Based on 1175 Reviews
7.8
Supplement Facts
Serving Size: 1 Veg Capsule
Amount Per Serving
%DV
Zinc(from 270 mg Zinc Picolinate)
50 mg
455% 

Top Medical Research Studies

8
Zinc’s effects on colds
We explored how zinc might help in treating and preventing the common cold. The study focused on zinc's effects, isolating it from other treatments to understand its true impact on cold symptoms. By doing this, the researchers aimed to clarify whether zinc could genuinely shorten the duration of a cold or alleviate its symptoms.

The findings were intriguing but showed that zinc might not yield significant benefits for everyone. While some individuals reported a slight reduction in cold symptoms, the evidence did not strongly support zinc as an effective treatment overall.

This means that, for those seeking relief from a nasty cold, zinc alone might not be the go-to solution we hoped it would be. It’s essential to consider this information when deciding on a cold treatment plan and to approach zinc with realistic expectations.
Read More
9
Zinc enhances rice cold resistance
We explored the impact of zinc-amino acids chelate on cold stress resistance in machine-transplanted early rice. Our investigation included other cold-resistant agents like uniconazole and abscisic acid, but we found zinc to be particularly effective. When applied during the regreening stage, zinc notably enhanced rice growth by promoting tillering and increasing the leaf area, which led to better yields.

We noted that zinc-amino acids chelate improved antioxidant enzyme activities, which are crucial for helping rice withstand cold temperatures. The yield of rice treated with zinc was approximately 9.22% higher than with uniconazole and 7.14% higher than with abscisic acid.

Additionally, we observed that using 750 g/ha of zinc-amino acids chelate during the transplanting and regreening stages yielded the best results. The timing of the application played a critical role, as spraying during these specific phases maximized both yield and cold resistance.

Overall, zinc treatments stand out as a promising option for improving cold stress resilience in early rice, making it a key consideration for farmers dealing with cold climate conditions.
Read More
We explored the impact of regular gargling with an antimicrobial mouthwash that contains both cetylpyridinium chloride and zinc on upper respiratory symptoms. A total of 150 participants were split into two groups; one group just brushed their teeth, while the other group brushed and gargled with the mouthwash twice a day over three months.

Our findings revealed that those using the mouthwash experienced a 21.5% reduction in the frequency and an 11% decrease in the severity of respiratory symptoms. This strongly suggests that incorporating zinc, alongside cetylpyridinium chloride, can provide benefits for those suffering from cold-related symptoms.

However, it’s important to note that this study’s design involved multiple components, and we can’t isolate zinc’s effectiveness from the impact of the other ingredients. Still, the results encourage us to view mouthwash with these ingredients as a helpful addition to our daily hygiene routines, especially during cold and flu season.

Ultimately, this research indicates that gargling with a mouthwash containing zinc and cetylpyridinium chloride can indeed help alleviate some unpleasant cold symptoms, but we should be mindful of the combination's effects when interpreting these outcomes.
Read More

Most Useful Reviews

9
Works instantly
422 people found this helpful
This zinc is the best form, acting immediately at the first sign of a cold. I take one tablet combined with 1000mg of vitamin C, and I feel perfectly well by morning. It's indispensable during winter. I struggled to find this particular form of zinc as it sells out rapidly. Thank you for keeping me healthy!
Read More
7.5
Family staple during colds
117 people found this helpful
This is a very good form of zinc! It's our go-to during a cold or when any cold symptoms first appear. The whole family takes it.
Read More
9
Overcame social anxiety
113 people found this helpful
ZINC is the best mineral supplement. If I could choose just one mineral for the rest of my life, it would undoubtedly be zinc. I take 100mg daily due to long-standing leukodynia and self-diagnosed HemoPyrrolLactamUria, which I learned about from experts. I've been taking zinc for over five months now, and not only do I never get colds, but I also swiftly recovered from bronchitis. Remarkably, I've transformed from a loner with extreme social anxiety into a vibrant extrovert! Without zinc, I would still be facing fatigue, low motivation, and social awkwardness. Zinc has helped repress my anxiety, allowing me to embrace an active lifestyle without stress or worry. The boost in my sex drive also deserves mention. I believe zinc is pivotal for my health and wellness.
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8.3
  • All Researches
9
Zinc enhances rice cold resistance
We explored the impact of zinc-amino acids chelate on cold stress resistance in machine-transplanted early rice. Our investigation included other cold-resistant agents like uniconazole and abscisic acid, but we found zinc to be particularly effective. When applied during the regreening stage, zinc notably enhanced rice growth by promoting tillering and increasing the leaf area, which led to better yields.

We noted that zinc-amino acids chelate improved antioxidant enzyme activities, which are crucial for helping rice withstand cold temperatures. The yield of rice treated with zinc was approximately 9.22% higher than with uniconazole and 7.14% higher than with abscisic acid.

Additionally, we observed that using 750 g/ha of zinc-amino acids chelate during the transplanting and regreening stages yielded the best results. The timing of the application played a critical role, as spraying during these specific phases maximized both yield and cold resistance.

Overall, zinc treatments stand out as a promising option for improving cold stress resilience in early rice, making it a key consideration for farmers dealing with cold climate conditions.
Read More
We explored the impact of regular gargling with an antimicrobial mouthwash that contains both cetylpyridinium chloride and zinc on upper respiratory symptoms. A total of 150 participants were split into two groups; one group just brushed their teeth, while the other group brushed and gargled with the mouthwash twice a day over three months.

Our findings revealed that those using the mouthwash experienced a 21.5% reduction in the frequency and an 11% decrease in the severity of respiratory symptoms. This strongly suggests that incorporating zinc, alongside cetylpyridinium chloride, can provide benefits for those suffering from cold-related symptoms.

However, it’s important to note that this study’s design involved multiple components, and we can’t isolate zinc’s effectiveness from the impact of the other ingredients. Still, the results encourage us to view mouthwash with these ingredients as a helpful addition to our daily hygiene routines, especially during cold and flu season.

Ultimately, this research indicates that gargling with a mouthwash containing zinc and cetylpyridinium chloride can indeed help alleviate some unpleasant cold symptoms, but we should be mindful of the combination's effects when interpreting these outcomes.
Read More
8
Zinc’s effects on colds
We explored how zinc might help in treating and preventing the common cold. The study focused on zinc's effects, isolating it from other treatments to understand its true impact on cold symptoms. By doing this, the researchers aimed to clarify whether zinc could genuinely shorten the duration of a cold or alleviate its symptoms.

The findings were intriguing but showed that zinc might not yield significant benefits for everyone. While some individuals reported a slight reduction in cold symptoms, the evidence did not strongly support zinc as an effective treatment overall.

This means that, for those seeking relief from a nasty cold, zinc alone might not be the go-to solution we hoped it would be. It’s essential to consider this information when deciding on a cold treatment plan and to approach zinc with realistic expectations.
Read More

User Reviews

USERS' SCORE
Moderately Good
Based on 1175 Reviews
7.8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Works instantly
422 people found this helpful
This zinc is the best form, acting immediately at the first sign of a cold. I take one tablet combined with 1000mg of vitamin C, and I feel perfectly well by morning. It's indispensable during winter. I struggled to find this particular form of zinc as it sells out rapidly. Thank you for keeping me healthy!
Read More
7.5
Family staple during colds
117 people found this helpful
This is a very good form of zinc! It's our go-to during a cold or when any cold symptoms first appear. The whole family takes it.
Read More
9
Overcame social anxiety
113 people found this helpful
ZINC is the best mineral supplement. If I could choose just one mineral for the rest of my life, it would undoubtedly be zinc. I take 100mg daily due to long-standing leukodynia and self-diagnosed HemoPyrrolLactamUria, which I learned about from experts. I've been taking zinc for over five months now, and not only do I never get colds, but I also swiftly recovered from bronchitis. Remarkably, I've transformed from a loner with extreme social anxiety into a vibrant extrovert! Without zinc, I would still be facing fatigue, low motivation, and social awkwardness. Zinc has helped repress my anxiety, allowing me to embrace an active lifestyle without stress or worry. The boost in my sex drive also deserves mention. I believe zinc is pivotal for my health and wellness.
Read More
9
Helps with cold
103 people found this helpful
Excellent! The best form and working dosage that helps a lot at the first sign of a cold.
Read More
9
Immunity boost
64 people found this helpful
❤️ Cartridges For Immunity ❤️ I absolutely love Now Foods for their price-quality ratio. A nutritionist recommended one capsule for me in the afternoon, and my child takes a lower dose. The absorption of zinc in this form of picolinate is excellent; tests have improved for both of us. During cold season, it’s essential to use as "cartridges for immunity" and double the dose at the first sign of malaise!
Read More

Frequently Asked Questions

9
Works instantly
422 people found this helpful
This zinc is the best form, acting immediately at the first sign of a cold. I take one tablet combined with 1000mg of vitamin C, and I feel perfectly well by morning. It's indispensable during winter. I struggled to find this particular form of zinc as it sells out rapidly. Thank you for keeping me healthy!
9
Immunity boost
64 people found this helpful
❤️ Cartridges For Immunity ❤️ I absolutely love Now Foods for their price-quality ratio. A nutritionist recommended one capsule for me in the afternoon, and my child takes a lower dose. The absorption of zinc in this form of picolinate is excellent; tests have improved for both of us. During cold season, it’s essential to use as "cartridges for immunity" and double the dose at the first sign of malaise!
10
Quick cold recovery
1 people found this helpful
I consistently take zinc, and the dosage here is fantastic! At the first signs of a cold, zinc, along with vitamin C at 1000 mg and high doses of vitamin D, works wonders. A few days of this regimen and I’m back to health—this has been tried and tested! Stay healthy, everyone!
10
No more colds
5 people found this helpful
No more colds! Since I began taking this product daily, I haven't had a single cold for several months, despite often catching everything. A particularly nasty cold went around, and everyone seemed to catch it except me; I was astonished that I didn't fall ill! Very pleased...
9
Cold relief
4 people found this helpful
I bought this vitamin for the cold season according to my doctor's advice. I recently had a slight illness, and after taking two capsules for two consecutive days, the discomfort disappeared. My immunity managed well. I've now ordered a lower dosage for children in preparation for the cold season, as this zinc is intended for immunity and not for long-term use.
9
Prevents complications
3 people found this helpful
I bought zinc as a precaution and it proved invaluable. When I caught a cold, combining it with vitamins D3 and C helped me recover quickly and avoid complications. It should be taken in courses for preventive care; it's essential in tackling colds.
9
Lifesaver during illness
3 people found this helpful
This zinc is a lifesaver during illness, especially for colds. Along with vitamin D and C, it combats disease effectively. The key is to take it promptly when symptoms begin to prevent the illness from establishing itself.
9
Instant cold aid
6 people found this helpful
As soon as I notice the first signs of a cold, I promptly take zinc, at least one capsule alongside vitamin C. For colds and hypothermia, zinc is quickly used up, just like vitamin C. I take 70-90 mg of zinc and 1-2 g of vitamin C daily for three days before reducing the dose. I highly endorse this for those who wish to avoid falling ill!
9
Highly recommended zinc
37 people found this helpful
Excellent! Zinc is most effectively absorbed as picolinate. It’s essential for strong immunity and helpful at the first signs of colds and viral infections. The price/quality ratio is excellent. I didn't experience any side effects, although I don’t take it daily due to the high dosage.
9
First sign remedy
6 people found this helpful
This zinc is of high dosage, taken immediately at the first sign of a cold and during illness, but for no longer than 7-10 days. It is well absorbed and gentle on the stomach, making it essential to keep in your first aid kit.
We explored the impact of regular gargling with an antimicrobial mouthwash that contains both cetylpyridinium chloride and zinc on upper respiratory symptoms. A total of 150 participants were split into two groups; one group just brushed their teeth, while the other group brushed and gargled with the mouthwash twice a day over three months.

Our findings revealed that those using the mouthwash experienced a 21.5% reduction in the frequency and an 11% decrease in the severity of respiratory symptoms. This strongly suggests that incorporating zinc, alongside cetylpyridinium chloride, can provide benefits for those suffering from cold-related symptoms.

However, it’s important to note that this study’s design involved multiple components, and we can’t isolate zinc’s effectiveness from the impact of the other ingredients. Still, the results encourage us to view mouthwash with these ingredients as a helpful addition to our daily hygiene routines, especially during cold and flu season.

Ultimately, this research indicates that gargling with a mouthwash containing zinc and cetylpyridinium chloride can indeed help alleviate some unpleasant cold symptoms, but we should be mindful of the combination's effects when interpreting these outcomes.
8
Zinc’s effects on colds
We explored how zinc might help in treating and preventing the common cold. The study focused on zinc's effects, isolating it from other treatments to understand its true impact on cold symptoms. By doing this, the researchers aimed to clarify whether zinc could genuinely shorten the duration of a cold or alleviate its symptoms.

The findings were intriguing but showed that zinc might not yield significant benefits for everyone. While some individuals reported a slight reduction in cold symptoms, the evidence did not strongly support zinc as an effective treatment overall.

This means that, for those seeking relief from a nasty cold, zinc alone might not be the go-to solution we hoped it would be. It’s essential to consider this information when deciding on a cold treatment plan and to approach zinc with realistic expectations.

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. Wieland LS. Zinc for prevention and treatment of the common cold: Summary of a Cochrane review. Explore (NY). 2025;21:103111. doi:10.1016/j.explore.2025.103111
  3. Yuan S, Qin S, Shi Q, Chen P, Tu N, et al. Effects of different cold-resistant agents and application methods on yield and cold-resistance of machine-transplanted early rice. Front Plant Sci. 2024;15:1422374. doi:10.3389/fpls.2024.1422374
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