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Natural Factors

L-Lysine, 500 mg, 180 Vegetarian Capsules

4.8 · 741 reviews
1,605 ₽

Dietary Supplement 1,000 mg Per 2 Capsules Free Form Amino Acid Healthy Immune System Suitable For Vegetarians/Vegans L-lysine is an essential amino acid necessary for growth and development, as well as for skin and tissue maintenance and repair. Supports a healthy immune system. Supports collagen synthesis. Free-form amino acid for easy absorption. Isura®: Verified Clean: ✔ Non GMO: ✔ The Isura® seal is your assurance that this product is independently verified as clean and safe, and has been tested for over 800 possible contaminants. This product is Isura verified clean, one of the highest testing standards in the world.

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Dietary Supplement 1,000 mg Per 2 Capsules Free Form Amino Acid Healthy Immune System Suitable For Vegetarians/Vegans L-lysine is an essential amino acid necessary for growth and development, as well as for skin and tissue maintenance and repair. Supports a healthy immune system. Supports collagen synthesis. Free-form amino acid for easy absorption. Isura®: Verified Clean: ✔ Non GMO: ✔ The Isura® seal is your assurance that this product is independently verified as clean and safe, and has been tested for over 800 possible contaminants. This product is Isura verified clean, one of the highest testing standards in the world.

Customer reviews

5.0
verified purchase
Excellent for wound healing

i had a minor surgery and tooth implant recently, so I started to use L-Lysine to get healed easier. I honestly think it helped or probably it's a placebo effect. However, I feel like it helped. Capsule size is easy to consume, no smell and this is my second brand, they both smell the same. I have read that this is not to be mixed with L-Arginine because they will both neutralize each other, so perhaps if you are taking L-Arginine for workout, please be aware of this statement as I saw many articles written about it. For me, this is absolutely okay as when I had minor surgery or cuts, that means, I am not working out, so I am not taking L-Arginine while i am taking L-Lysine. The delivery was good, the capsule is just the right amount of size to consume and I believe the healing process is much faster for me. Hope this helps.

5/28/2021
5.0
verified purchase
L-Lysine For BONE GROWTH

I give this to my 16yo son to optimise his height. There are 4 amino acids important for lineal bone growth: L-Arginine, L-Lysine, L-Ornithine and L-Leusine. These 4 are absolutely fundamental to bone and cartilage development. Bone length is the primary factory of our height. These 4 amino acids can increase growth hormone secretion. GH is most potent on younger people. These are good nutrient for late teens who want to stimulate their growth hormone levels before the growth plates have fused. I hope my son can reach his optimal height by taking these amino acids.

10/7/2021
5.0
verified purchase
Lysine is a helper for our health ❤️

I take 1 tablet a day in the morning on an empty stomach 1 hour before meals along with collagen and vitamin C in the form of calcium ascorbate for 3 months, drink 2 times a year. Lysine is one of the eight essential amino acids that make up protein. What is lysine for? Lysine is of great biological value to humans. The body needs this amino acid for healthy functioning. In combination with other essential amino acids, it is involved in almost all physiological processes. Lysine supports the normal functioning of organs and is the building block for the protein that makes up the tissues and cells of our body. In addition, it helps the body absorb iron and zinc, stimulates collagen production, and supports the immune system. If you don't get enough lysine in your diet, you may experience the following symptoms: hair loss, fatigue, irritability, red eyes, poor concentration. There may be disturbances in the reproductive system. There are only a few amino acids that play a vital role in the human body. And lysine is one of them. If you monitor your health and are actively involved in sports, control the amount of this amino acid consumed. Peace and health to all!

11/7/2022
5.0
verified purchase
Decent Lysine Supplement

I trust this brand in general, and this Lysine was of good quality for sure. I took it to improve general health and to control growth of papillomas. This worked really well in the long run and I can see the benefit. Great ingredient, nice value size package! The taste is neutral and overall is a good addition to my supplement routine and diet.

3/1/2026
5.0
verified purchase

A staple in our supplement repertoire. Good quality, pure, no artificial fillers, clean ingredients. When i have mouth sore, this works for me. Very effective. A must for general wellness.

1/21/2026
5.0
verified purchase
Good quality, good packaging

Good company, capsule size is good. The price is also good.

10/23/2025
5.0
verified purchase
Coldsores

The first sign of a tingle, a couple of days of these and the cold sores are gone

10/9/2025
4.0
verified purchase

I’m taking it to support mental calmness. The tablets have no smell, are easy to take, and so far I haven’t experienced any side effects.

9/19/2025
5.0
verified purchase
Great

I’ve been using this product for a while and really enjoy it. The quality is great, the packaging is neat, and it feels like a good value for the price. I’ll definitely consider ordering again.

9/17/2025
4.0
verified purchase

i'm only taking it since a short while, but i've heard it's good against herpes viruses, so i tried it. it's not too heavy on the stomach either. but i'm not sure if it really is the free form like the lable says since it only says hcl on the back.

9/1/2025