L-Lysine 500 mg


An Essential Amino Acid. Supports Healthy Immune System Function L-Lysine is an essential (free-form) amino acid that helps support a healthy immune system. As the human body cannot create it's own L-Lysine, it must be derived from diet and supplementation. Two capsules daily will help individuals reach and exceed the minimum suggested daily requirement of 800 mg of L-Lysine.
Product: L-Lysine 500 mg
Brand: TwinLab (More Products)
Size: 50 Capsules
Dosage: 1 capsule twice daily
Retail: $5.95
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2 Customer Reviews


Great for canker sores
by Jaclyn

I have used L-Lysine for years but found TwinLab brand to be both affordable & effective. As soon as I feel like I might be getting a canker sore, I start taking it 2-3 times per day. It usually works immediately & the sore gets smaller & goes away. I have also taken this product when I've had a bad cold to prevent coldsores & it worked great. Definitely will purchase again.


Easy prevention of cold sores
by JulieMac_29

I started taking this product on a recommendation from a friend after she heard me complaining of the cold sores I was chronically developing. Research has shown that L-Lysine supplements can help boost your immune system enough to stave off outbreaks. It's now been a just under a year since I started taking these capsules on a nightly basis and I'm happy to say I've been cold sore free in that time. Was it the L-Lysine or just good luck? Well, I can't say for sure, but I'm not going to stop taking them anytime soon to test it out!

The capsules are a bit on the big side and the coating can get gummy if you're not a quick swallower. But really, those are the only negatives to this product.