Last update
3/14/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 26 Reviews
8.1
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
L-Lysine (from 637 mg L-Lysine Hydrochloride)
500 mg
**
Top Medical Research Studies
8
We explored the effectiveness of lysine supplementation in treating herpes infections through a survey of 1,543 participants after a six-month trial. The findings revealed that a substantial 84% reported that lysine helped prevent recurrences or reduced the frequency of outbreaks.
Notably, only 8% of users described their symptoms as severe while taking lysine, compared to 79% who felt that way without it. Healing times improved significantly; 83% felt lesions healed in five days or less with lysine, while 90% said healing took longer without it. Overall, 88% regarded lysine as an effective treatment.
Notably, only 8% of users described their symptoms as severe while taking lysine, compared to 79% who felt that way without it. Healing times improved significantly; 83% felt lesions healed in five days or less with lysine, while 90% said healing took longer without it. Overall, 88% regarded lysine as an effective treatment.
Read More
Most Useful Reviews
10
Outbreak resolved
4 people found this helpful
I faced a shingles outbreak all over my arm. I aggressively treated it with 5000 mg of this product daily, and within a week, the outbreak had completely subsided!
Read More
7.5
Fast results seen
4 people found this helpful
I purchased this item specifically to treat shingles and noted results within two days. It also effectively addresses mouth sores (canker sores). I recommend this in conjunction with tea tree oil and neem oil topically to clear shingles.
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10
Remarkable results
Having suffered from herpes Zoster since 2010 with multiple flare-ups yearly, I started taking Lysine on the second day of an exacerbation and was astonished! The redness vanished by evening, and the blisters were gone by morning. After increasing my dosage, there have been no symptoms for a month—I'm grateful for this remedy!
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
- All Researches
8
We explored the effectiveness of lysine supplementation in treating herpes infections through a survey of 1,543 participants after a six-month trial. The findings revealed that a substantial 84% reported that lysine helped prevent recurrences or reduced the frequency of outbreaks.
Notably, only 8% of users described their symptoms as severe while taking lysine, compared to 79% who felt that way without it. Healing times improved significantly; 83% felt lesions healed in five days or less with lysine, while 90% said healing took longer without it. Overall, 88% regarded lysine as an effective treatment.
Notably, only 8% of users described their symptoms as severe while taking lysine, compared to 79% who felt that way without it. Healing times improved significantly; 83% felt lesions healed in five days or less with lysine, while 90% said healing took longer without it. Overall, 88% regarded lysine as an effective treatment.
Read More
User Reviews
USERS' SCORE
Good
Based on 26 Reviews
8.1
- All Reviews
- Positive Reviews
- Negative Reviews
10
Outbreak resolved
4 people found this helpful
I faced a shingles outbreak all over my arm. I aggressively treated it with 5000 mg of this product daily, and within a week, the outbreak had completely subsided!
Read More
7.5
Fast results seen
4 people found this helpful
I purchased this item specifically to treat shingles and noted results within two days. It also effectively addresses mouth sores (canker sores). I recommend this in conjunction with tea tree oil and neem oil topically to clear shingles.
Read More
10
Remarkable results
Having suffered from herpes Zoster since 2010 with multiple flare-ups yearly, I started taking Lysine on the second day of an exacerbation and was astonished! The redness vanished by evening, and the blisters were gone by morning. After increasing my dosage, there have been no symptoms for a month—I'm grateful for this remedy!
Read More
9
Quick recovery
Lysine works wonders for the herpes virus. I gave it to my child for chickenpox, and remarkably, the rashes disappeared rapidly, with many not even becoming papules. I ingested it for Shingles, and it too resolved fairly swiftly.
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9
Significant improvement
I adore NOW Foods L-Lysine, as it truly benefits me. It assists with cold sores, Shingles, and enhances my energy and skin health. The capsules are easy to take and reasonably priced. Since beginning the supplement, my cold sores have become less frequent and less severe, and I feel more energetic.
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Frequently Asked Questions
7.5
Symptoms improving
4 people found this helpful
I have been dealing with shingles for about five months. After reading Dr. Earl Mindell's "Vitamin Bible," I purchased this product, trusting its benefits for shingles. I am desperate to see improvement, and since I started taking it, I feel my symptoms are gradually getting better.
7.5
Improving condition
1 people found this helpful
After experiencing itching from shingles, I took the risk of consuming 2000mg daily while monitoring my condition. Currently, I am on 1000mg and feel it's becoming better. Is this the amino effect?
8
We explored the effectiveness of lysine supplementation in treating herpes infections through a survey of 1,543 participants after a six-month trial. The findings revealed that a substantial 84% reported that lysine helped prevent recurrences or reduced the frequency of outbreaks.
Notably, only 8% of users described their symptoms as severe while taking lysine, compared to 79% who felt that way without it. Healing times improved significantly; 83% felt lesions healed in five days or less with lysine, while 90% said healing took longer without it. Overall, 88% regarded lysine as an effective treatment.
Notably, only 8% of users described their symptoms as severe while taking lysine, compared to 79% who felt that way without it. Healing times improved significantly; 83% felt lesions healed in five days or less with lysine, while 90% said healing took longer without it. Overall, 88% regarded lysine as an effective treatment.
References
- Walsh DE, Griffith RS, Behforooz A. Subjective response to lysine in the therapy of herpes simplex. J Antimicrob Chemother. 1983;12:489.
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