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

(426 Reviews)

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$9.85

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(20000 available )

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98 Ratings
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Reviews
  • Annalee Foster

    > 3 day

    Got this to help with impetigo breakouts. And to crush up and place on the coldsore if it happens again.

  • Dr. Joseph Skiles IV

    12-06-2025

    I find this a cheap way to stop getting a cold sore if you down these immediately. No reason to buy the expensive tabs when this gets right into your system just double up on the doses when you first start taking them and doing immediately when you feel a cold sore coming on they are great and have used them for years.

  • PFSF

    > 3 day

    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.

  • J. Young

    > 3 day

    Well I take Lysin supplements regularly and i was shopping around for cheaper alternatives when I ran across Now Food Supplements. They have some of the least expensive supplements on the market. This is more cost effective than purchasing Lysin from GNC. P.S. - i notice that a lot of people take these for a variety of reasons but be carful not to overdose on Lysin. You can generate some really bad side effects taking more than 2500mg a day. Granted this is size dependent (body mass). Some may be able to get away with 3200mg a day. I try to keep my intake between 1500 and 2000mg a day and I workout and weight train a lot.

  • Jon Cook

    > 3 day

    These are a great vitamin supplement.

  • Mallie Renner

    Greater than one week

    Now always seems to work well.

  • xochi718

    > 3 day

    Best value in Lysine.

  • Mama Mur

    > 3 day

    Now is a reputable and fairly priced brand. Ive never experienced any problems with Now. I use L-Lysine as an immune system booster and this brand works well.

  • nvr2amzd

    > 3 day

    I am a fan of NOW products so I did not hesitate to purchase this product, the Lysine tablets. I have a problem with sensitivity to many food products (especially acidic foods) and am constantly fighting mouth sores (canker-type) with many foods and even some toothpastes (mint does a job on me). Lysine tablets take care of that problem, with two per day intake for a couple days (or so, depending upon the intensity of the breakout inside my mouth). I am delighted to have found these NOW Lysine tablets, needless to say!

  • Kimmo

    > 3 day

    I used this brand for two years but recently had to change. They’ve done something different and the last two auto deliveries I’ve gotten of this was not the same as the product I used for two years. It’s smells like rotten milk now and makes me gag . Save your time and money and stay clear of it.

L-Lysine is an essential amino acid, which means that it cannot be manufactured by the body and must be obtained through the diet or by supplementation. Lysine is necessary for the production of all protein in the body including hormones, enzymes, and antibodies, as well as carnitine and collagen, which is the structural protein forming all connective tissue such as skin, tendon, and bone. L-Lysine also plays a major role in calcium absorption. Some evidence suggests that L-Lysine supplementation may help to support a healthy immune system as well as proper cardiovascular function.*

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