Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8.3
USERS' SCORE
Moderately Good
Based on 570 Reviews
7.9
Supplement Facts
Serving Size: 1 Softgel
Amount Per Serving
%DV
Zinc (from 150 mg Zinc Bisglycinate) (TRAACS™)
30 mg
273%
Pumpkin Seed Oil (Cold Pressed)
250 mg

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

8
Effective for early relief
102 people found this helpful
At the first signs of a cold, this helps immensely; I usually recover in 4-5 days when combined with vitamin C and D3.
Read More
7.5
Eases cold symptoms
90 people found this helpful
Excellent! We trust NOWFOOD for quality, science-backed supplements. I find zinc effective in alleviating cold symptoms when taken at the onset and in shortening the duration of colds during illness. This is a staple in my medicine cabinet!
Read More
9
Stops colds effectively
9 people found this helpful
This zinc form effectively alleviates headaches and at the first signs of a cold, I take a hefty dose (3 capsules a day for 3-4 days) followed by one for a couple of days. Colds clear up, and the large jar is quite economical. Just take it, without hesitation. Thank you for the wonderful product!
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 570 Reviews
7.9
  • All Reviews
  • Positive Reviews
  • Negative Reviews
8
Effective for early relief
102 people found this helpful
At the first signs of a cold, this helps immensely; I usually recover in 4-5 days when combined with vitamin C and D3.
Read More
7.5
Eases cold symptoms
90 people found this helpful
Excellent! We trust NOWFOOD for quality, science-backed supplements. I find zinc effective in alleviating cold symptoms when taken at the onset and in shortening the duration of colds during illness. This is a staple in my medicine cabinet!
Read More
9
Stops colds effectively
9 people found this helpful
This zinc form effectively alleviates headaches and at the first signs of a cold, I take a hefty dose (3 capsules a day for 3-4 days) followed by one for a couple of days. Colds clear up, and the large jar is quite economical. Just take it, without hesitation. Thank you for the wonderful product!
Read More
9
Strengthens immune response
7 people found this helpful
Zinc in glycinate form is well absorbed when combined with vitamin C. My skin condition and overall wellbeing have improved during colder weather, as it bolsters immunity against colds. After experiencing hypothermia, a cold begun; however, it quickly resolved without complications, thanks to the combination of Zinc and vitamin C. The capsules are small, tasteless, and odourless, making them easy to swallow.
Read More
9
Restores vitality
5 people found this helpful
This glycine zinc supplement is superb for eliminating deficiencies. It’s highly absorbable and has greatly improved my physical condition since I've started using it. It enhances my immune system, making me less likely to catch a cold, and helps in recovering from fatigue. My energy levels have surged. It also improves skin condition, promoting firmness, and is safe with minimal side effects. It’s suitable for anyone wanting to increase zinc intake and enhance vitality.
Read More

Frequently Asked Questions

10
Rapid recovery
1 people found this helpful
I am thrilled! My cold never disappeared so quickly. Recovery occurred in just 1 day if I began taking it at the first sign of symptoms. The capsules are easy to take. I combined them with vitamin C and will definitely order more. I also use it preventatively during the off-season.
8
Effective for early relief
102 people found this helpful
At the first signs of a cold, this helps immensely; I usually recover in 4-5 days when combined with vitamin C and D3.
9
Effective for colds
1 people found this helpful
Wonderful zinc. At the first sign of a cold, it definitely helps—two pieces taken immediately with vitamin C. The price-to-quality ratio is excellent.
10
Indispensable supplement
I no longer catch colds. After reading a blog post, I started using zinc lozenges, which worked well when I was feeling unwell. To boost my zinc intake, I began using this supplement, which has become indispensable as I no longer catch colds.
10
Cold symptoms vanished
2 people found this helpful
I like it!!! This product is absolutely amazing!!! With the first signs of a cold, I take Zinc and Vitamin C (1000 mg), and any signs of colds disappear within hours. I particularly appreciate this one for its pumpkin seed oil content. It’s truly exceptional!
9
Immune system support
1 people found this helpful
Great zinc supplements have been essential for my immune system. Since using them regularly, I've seen a reduction in the frequency and duration of colds. Zinc has also greatly improved my skin health, aiding in clearer complexions and quicker healing. While a balanced diet is key, zinc has significantly fortified my immune defences and enhanced my overall well-being.
7.5
Reduces cold duration
1 people found this helpful
We trust NOW for quality, science-based supplements. Zinc has been beneficial in alleviating cold symptoms when taken at the onset and in shortening the duration of a cold if continued throughout the illness. It’s a product I wouldn't want to be without in my medicine cabinet!
9
Stops colds effectively
9 people found this helpful
This zinc form effectively alleviates headaches and at the first signs of a cold, I take a hefty dose (3 capsules a day for 3-4 days) followed by one for a couple of days. Colds clear up, and the large jar is quite economical. Just take it, without hesitation. Thank you for the wonderful product!
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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