NOW Supplements, L-Lysine (L-Lysine Hydrochloride) 500 mg, Amino Acid, 250 Tablets

One a day, no more cold sores.

Great product

Best value in Lysine.

take daily

I have been reading a very useful book - ‘Restoring Your Digestive Health’ - by Jordan S Rubin and Joseph Brasco, both MDs. They have a section titled ‘Sub-Par Supplements’ in the book, and interestingly, this section lists amino acid supplements. Many Amino acid supplements are sold to athletes and bodybuilders to help them build muscle strength. The problem with these supplements, however, is that they are a far cry from the amino acids in food. In the protein from food sources, different kinds of amino acids are bound together in long molecule chains, but in supplements the amino acids are free form or unbound. Each type of amino acid is sold as an isolate. Research suggests that these isolate, free-form amino acids are not absorbed adequately. Cofactors present in food sources probably help the body metabolize amino acids, but those cofactors are not present in free form amino acids. As long as you are getting enough protein in your food, you do not need to take amino acid supplements. Consume lacto-fermented foods and take high quality digestive enzymes to improve your protein digestion if you feel that you are deficient in amino acids. In general, we do not recommend these supplements for most patients.

I have not had a cold for 5 years, since I started taking this.

For a good price

I got this for my dogs itching. He is an older dog and I think he was over vaccinated throughout his life so he has some skin viruses. I read somewhere that lysine helps with the itching and it seems like it did. If you decide to try it, check with your vet first though because it may contradict some medications and other vitamins.

I take one every other day to prevent cold sores. I havent had one in years now! Love the NOW brand.

I’ve been using L-Lysine for years and I like the Now brand and this is the best price I have found.