Great product would buy again!
"Great product would buy again!"
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Your body doesn’t make L-lysine on its own, yet it needs it for many important functions. We’ve got your lysine solution: A powerful formula with a potent daily dose of this essential amino acid, expertly designed to support your health and well-being.*
L-Lysine (L-Lysine HCI), Vegetable Cellulose Capsule, Organic Rice Extract Blend and Cellulose.
Use only as directed. Take 1 VegCap daily with a meal or glass of water. Store in a cool, dry place.

L-lysine is an essential amino acid your body can’t produce on its own. You must acquire it from lysine-rich foods like fish, beef, and poultry—or from carefully crafted, expert nutritional supplements like this powerful formula.
Since 1973, Solaray has believed that what you put in your body should be proven, not promised.
We source our own raw materials and triple-test every lot.
We manufacture 95% of our products for full control.
15,000 tests per month verify ingredient potency and purity.^

In an industry where quality can vary widely, testing isn't just a step in the process. It is the process.
✅ Passed Testing for Heavy Metals**
Arsenic, cadmium, lead, mercury
✅ Passed Testing for Microbials**
Mold, yeast, coliform, e. Coli
✅ Passed Testing for Contaminants**
Gluten, ethylene oxide
✅ Passed Testing for Physical Properties
Moisture, color, disintegration, tap density, mesh 140, 20, and 60
**Most contaminants, heavy metals, and microbes are tested to ensure no more than 3 ppm.

Our production facility in Ogden, Utah is a GMP facility certified by NSF. We source and triple-test raw materials, make the majority of our products in-house, conduct stringent testing in our ISO-accredited lab, and distribute our own products to ensure quality and excellence in every bottle.
Disclaimer: The customer reviews and testimonials featured on this site reflect individual experiences and opinions. Results may vary and are not guaranteed. These statements have not been evaluated by the Food and Drug Administration (FDA). The content is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before starting any new supplement regimen or if you have concerns about your health.
Overall rating: 5.0 / 5 from 20 reviews.
Review topics: ["sores","brand","supplement","solaray"].
"Great product would buy again!"
— Evan B. (5/5)
"I use this to inhibit cold sores. I take it daily to prevent cold sores. When I do get a cold sore, I will take it three times a day, to help it heal faster."
— Chris C. (5/5)
"Happy with this supplement"
— Lisa C. (5/5)
"sadly the Lysine product has changed. I have been using it for many many years. I looked at the ingredients and some of them are very unhealthy. It used to be a clean product. I will not be using it in future, as a matter of fact I threw out the three bottles that I purchased. It makes me so sad, that good brands and good products get infiltrated with chemicals and ingredients that harm people. I have found some clean forms of lysine and I will be using those brands in the future. If you ever change your product back to a clean one please do reach out."
— Debra P. (5/5)
"Very fine product, keeps cold sores from forming."
— Zoe R. (5/5)
"I can depend on Solaray's products being consistently good because dyes, fillers and preservatives are not added to their products which makes them healthier than other company's."
— Eleanor T. (5/5)
"Great products"
— Stephanie H. (5/5)
"As a subscriber, now, to four supplements, Solaray continues to surpass my expectations, both in its products and in the reliable and timely delivery of those products. Not beguiled by immediate gratification, aware, rather, that the efficacy of any benefit depends upon the discipline, the regimen, with which one devotes oneself to that benefit, I await in many regards fullest evidence of the advantages of the supplements I take, all from Solaray. As a subscriber, Solaray has never failed to honour its commitment to my commitment. Without hesitation, I would recommend Solaray wholeheartedly."
— Morgan M. (5/5)
"Working great."
— Michael K. (5/5)
"Absolutely love your brand of L-Lysine! Better than all the rest for sure. My semi-annual common cold hasn’t showed up this year. I truly believe it’s because I’ve been taking this religiously for the last 4 months."
— Shana (5/5)
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.