Lysine 400™

A natural, 100% pure essential amino acid to support your immune system. L-Lysine also plays an important role in energy production as well as in the production of collagen, which is essential for healthy bones, joints and connective tissue.

 3 reviews  |  Write review

MSRP $17.90
SAVE $3.00



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Product Information


Andrew Lessman's Lysine-400 is a pure, natural source of the essential amino acid L-Lysine. Lysine has become a very popular supplement, because of its role in supporting the immune system, as well as its central role in fat burning and energy metabolism. Lysine is one of nine amino acids referred to as “essential” because it cannot be produced by the body. Lysine is vital for the growth and development of body tissues and also plays a critical role in the body's production of energy, since it is a precursor to acetyl CoA, a critical component of all energy metabolism. Additionally, Lysine is also a precursor to Carnitine, which is essential for all fat metabolism. Lysine also plays an important structural role in the formation of collagen, a vital component of healthy skin, bones, joints and connective tissue (tendons, ligaments and cartilage). Lysine also plays a role in helping the body manage Calcium. In short, Lysine plays a multitude of critical roles in the most vital systems in our body. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.


Serving Size
1 Capsule
Amount Per Serving
% DV*
L-Lysine (as L-lysine hydrochloride)
400 mg
† Daily Value not established.
Other Ingredients: Gelatin capsule.

Suggested Use

Consume one or more capsules daily or as recommended by your physician. As with any dietary supplement, this product is most effective as part of a healthy diet and active lifestyle, along with a daily multi-vitamin-mineral formula.

Product Label

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Customer Reviews

Based on 3 reviews


The Best Ever I had an infection on my finger and I get them sometimes from cutting my nails wrong or just biting. Anyway, I've gotten them most of my life and they usually last at least a week. I got one recently and I took a Lysene 400 in the afternoon, that evening and one sometime the next day and by that evening it was GONE. Unbelievable product! Thank you Andrew and I will always keep this one around.
By Valerie, TX on 12/24/2018

Face is Clear I use this product for cold sores... I take four capsules a day... I noticed by taking this product that my face is clear... I have mild acne and since taking this product for months my face is clear from both cold sores and acne...
By Christina, CA on 12/23/2018

Wouldn't be without it! For the past 5 years I have purchased lysine at the drugstore to help control cold sores frequency and severity. I received ProCaps brand just as I was getting a small cold sore in the corner of my mouth. I started using this brand right away and it was completely gone in 3 days! That never happened with any other brand. I was taking 9 a day (3 with each meal). Now I am hoping with this brand that they will be even less frequent. I take 6 daily (2 with each meal). Giving 4 stars instead of 5 because I am waiting to see if in fact they will be less frequent. Also, the cost is double the drugstore brand (because I always get them on sale) which is totally worth it if it works!
By Kimberly, NY on 1/25/2011