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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  • Blacky

    > 3 day

    Ive been taking L-Lysine since 1968 and dont get sick. Getting scheduled vaccines and a good diet also help.

  • 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.

  • Theresa Whidden

    06-06-2025

    These tablets are a good fit for me and work!

  • Evan Williams

    > 3 day

    Our 6 month old boxer puppy had been suffering from canine papilloma virus for almost 3 months. She had huge warts all over her face, including some inside her mouth that made it difficult for her to eat. They bled constantly, making a mess and making her miserable. After reading about L-Lysine online as a possible remedy, I purchased these. Within 2 days the warts had started shrinking noticeably, and they were gone completely within a week.

  • nightingale RN

    > 3 day

    Received as promised. I buy NOW supplements because they are soy, gluten & dairy free and very reasonably priced. L-lysine was recommended by my naturopath to boost my immune system after being diagnosed w/ Epstein-Barr Virus reactivation. I trust that it us helping. Starting to feel a lot better. I buy NOW vits/supp. whenever possible.

  • Shegun

    > 3 day

    Fulfills what is necessary. I would not recommend swallowing without water. The gel capsules do get stuck.

  • Brad

    > 3 day

    Great supplement for the price!

  • Happy Shopper

    06-06-2025

    Pill to large

  • J. Young

    11-06-2025

    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.

  • Cynthia B.

    > 3 day

    Bought to treat shingles. Results in 2 days. Also works for mouth sores (canker sores). Recommend this and tea tree oil/and neem oil topically to clear shingles.

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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