Last update
5/10/2025

Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8.3
USERS' SCORE
Moderately Good
Based on 909 Reviews
7.8
Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving
%DV
Zinc (as Zinc bisglycinate)
30 mg
273%

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

7.5
Eases cold symptoms
230 people found this helpful
With numerous health issues such as primary immunodeficiency and dermatitis, I frequently need to use medicine, especially during winter when viruses are rampant. I prefer the chelated form of zinc, which has shown positive effects. The recent illness was milder and without complications, and my skin condition improved as well. Zinc helps make cold symptoms much more bearable and speeds recovery. However, it's vital to note the compatibility of zinc with other supplements. I truly recommend this manufacturer.
Read More
9
Disease prevention
27 people found this helpful
Excellent zinc at a good price. I always keep it handy for colds and viruses. At the first sign of illness, we combine it with vitamin C. Taking this combination early can prevent disease progression and often lead to recovery within 3-5 days, helping my family avoid the spread of viruses.
Read More
9
Prevents winter colds
14 people found this helpful
I’ve enjoyed a winter without a single cold! I use zinc alongside vitamin D3 and C, ensuring I take it after meals to avoid nausea. My family members have stayed healthy while others frequently visit pharmacies. I recommend this to anyone looking for immunity support.
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 909 Reviews
7.8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
7.5
Eases cold symptoms
230 people found this helpful
With numerous health issues such as primary immunodeficiency and dermatitis, I frequently need to use medicine, especially during winter when viruses are rampant. I prefer the chelated form of zinc, which has shown positive effects. The recent illness was milder and without complications, and my skin condition improved as well. Zinc helps make cold symptoms much more bearable and speeds recovery. However, it's vital to note the compatibility of zinc with other supplements. I truly recommend this manufacturer.
Read More
9
Disease prevention
27 people found this helpful
Excellent zinc at a good price. I always keep it handy for colds and viruses. At the first sign of illness, we combine it with vitamin C. Taking this combination early can prevent disease progression and often lead to recovery within 3-5 days, helping my family avoid the spread of viruses.
Read More
9
Prevents winter colds
14 people found this helpful
I’ve enjoyed a winter without a single cold! I use zinc alongside vitamin D3 and C, ensuring I take it after meals to avoid nausea. My family members have stayed healthy while others frequently visit pharmacies. I recommend this to anyone looking for immunity support.
Read More
7.5
Illness prevention
14 people found this helpful
In a chelated form, this zinc helped me through many colds in the autumn-winter period, preventing illness.
Read More
7.5
Reduces cold severity
12 people found this helpful
Zinc in a chelated form is well absorbed and, even at a lower dosage of 30 mg, helps lessen the impact of colds and viral infections. It also plays a role in the absorption of essential vitamins and supports faster recovery after Covid. The capsules are easy to take, and I appreciate the health benefits they offer.
Read More

Frequently Asked Questions

9
Effective against cold
5 people found this helpful
I started taking these vitamins for my hair because zinc reduces androgen production. After a month, I noticed fewer hair issues. Its main advantage, however, is that if I take 2 capsules for 3 days, the cold completely disappears. Just ensure to take it after a meal to avoid nausea.
9
Disease prevention
27 people found this helpful
Excellent zinc at a good price. I always keep it handy for colds and viruses. At the first sign of illness, we combine it with vitamin C. Taking this combination early can prevent disease progression and often lead to recovery within 3-5 days, helping my family avoid the spread of viruses.
10
Prevents cold
2 people found this helpful
This has saved me from the common cold all autumn! It works exceptionally well; I didn’t catch a single cold while taking it, which is a relief!
9
Prevents winter colds
14 people found this helpful
I’ve enjoyed a winter without a single cold! I use zinc alongside vitamin D3 and C, ensuring I take it after meals to avoid nausea. My family members have stayed healthy while others frequently visit pharmacies. I recommend this to anyone looking for immunity support.
9
Life-changing
8 people found this helpful
Zinc has transformed my life! I used to be often ill and constantly caught cold. After trying zinc, I no longer experience nausea with it. I primarily take it during autumn and winter, or if I sense a cold coming, I immediately start with zinc, vitamin C, and vitamin D, leading to symptom disappearance in a couple of days. I highly recommend everyone to stock up on these vitamins!
9
Impressive defence against colds
3 people found this helpful
I appreciated this zinc as it prevents me from feeling unwell, unlike other brands. Zinc is an essential aid during viral infections, helping me recover quickly without getting ill. For the last two years, I've only had minor symptoms. At the first signs, I consume Vitamin C, zinc, monolaurin, and turmeric drinks, which help eliminate the illness.
7.5
Reduces cold severity
12 people found this helpful
Zinc in a chelated form is well absorbed and, even at a lower dosage of 30 mg, helps lessen the impact of colds and viral infections. It also plays a role in the absorption of essential vitamins and supports faster recovery after Covid. The capsules are easy to take, and I appreciate the health benefits they offer.
9
Effective in illness
2 people found this helpful
We tried zinc based on a recommendation, and at the first sign of a cold, I double the dose. It really does help minimise the duration of the illness and aids recovery. I will order more!
9
Promotes quicker recovery
4 people found this helpful
Chelated zinc is excellently absorbed. During cold season, I take one capsule daily with food, as an empty stomach can lead to headaches. We monitor our zinc levels with blood tests to avoid excess. It supports immunity and has anti-inflammatory effects, helping my recovery. I also take vitamin C and D3 to bolster my family's health.
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. 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. 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. 10.3389/fpls.2024.1422374
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