★★★★★
Lysine
AED—April 30, 2025
I use L-lysine as remedy/preventive for cold sores. It arrived a day before predicted and it is doing its job nicely. The 1000 mg tablet might be a bit large for someone who has trouble swallowing. Read more
Source Naturals
Source Naturals L-Lysine Free Form 1 000 mg - Amino Acid Supplement Supports Energy Formation of Collagen -
$4.96$7.50
About this item
- SUPPORTS COLLAGEN AND ENERGY. L-Lysine is crucial for the formation of collagen, a major part of the body's connective tissues. L-Lysine also contributes to energy production when converted to acetyl coenzyme A, one of the principal fuels for the Krebs cycle.*
- SUGGESTED USE. 1 tablet daily.
- WELL MADE SUPPLEMENT: Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, preservatives, or artificial color, flavor or fragrance.
- OVER 40 YEARS OF TRUST. Source Naturals was created in 1982 by CEO Ira Goldberg to support each individual's potential to enjoy optimal health.
- MANUFACTURED IN THE USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration (FDA).
$4.96
Was $7.50Save $2.54
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Product details
| Brand | Source Naturals |
|---|---|
| Flavor | Unflavored |
| Primary Supplement Type | L-Lysine |
| Unit Count | 50.0 Count |
| Item Form | Tablet |
| Item Weight | 0.22 Pounds |
| Item dimensions L x W x H | 2.21 x 2.21 x 3.94 inches |
| Diet Type | Gluten Free |
| Product Benefits | Bone & Joint Support, Energy Management |
| Age Range (Description) | Adult |
Technical specifications
| is_discontinued_by_manufacturer | No |
|---|---|
| product_dimensions | 2.21 x 2.21 x 3.94 inches; 3.52 ounces |
| item_model_number | 021078001416 |
| date_first_available | May 29, 2004 |
| manufacturer | Threshold Enterprises |
| best_sellers_rank | #90,318 in Health & Household ( See Top 100 in Health & Household ) #115 in L-Lysine Nutritional Supplements |
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Customer reviews
4.5217 ratings
Customers say
Customers find the supplement effective, reporting that it helps with hair growth and clears skin.
★★★★★
No side effects
Ms.Petey—May 15, 2025
Same great benefits as any other high-quality lysine supplement. No bitterness. No nausea. No heartburn. Read more
★★★★★
Best brand
Kammy17—November 16, 2020
Source Naturals has always been my “go to” brand for lysine. Many years ago I developed cold sores and a pharmacist told me to take lysine to help get rid of them. It’s been the most economical remedy. I’ve tried other brands and SN has always been the best because they are easier to swallow than some other brands. The pills are huge horse pills - as I refer to them and the smooth coating on the outside makes them easier to swallow than some other brands. These are also the most effective. I’ve found they work the best. I highly recommend Source Naturals brand. Read more
★★★★★
good purchase and essential!
Stella—November 2, 2023
The tablets are indeed somewhat large, but this is not critical! Be Healthy! Read more
★★★★★
Best supplements brand, EVER!!!
CHRIS MAC—August 29, 2021
I've always used this particular brand, when buying my supplements. Among my other purchases are: L-arginine, L-cittruline, Zinc and now L-lysine. These are important amino-acids I've decided to take, for years and I totally trust the effectiveness of the brand. Personally I recommend this brand for anyone who is looking for a high quality product. Thank you Amazon for carrying this trusted brand, Source Naturals. Read more
★★★★★
Satisfied
Vicki—March 31, 2021
They are very large, but are coated. I like that I get 1,000 mg in one tablet. Sometimes I can swallow them without a problem but sometimes they are difficult to swallow. I am going to try taking 2 (500 mg) coated tablets instead and see if thats better to swallow. Read more
★★★☆☆
Three Stars
Stosh—April 14, 2018
Never know if these work or not. Pills are very large. Don't think I'll reorder. Read more
★★★★★
The size is so convenient
Jim C.—December 21, 2021
We’ve been taking this for years, but had to rely on supplies at different stores. This quantity and speed of delivery works great for us! These are easy to swallow, have little-to-no flavor, and seems to be working ;) Read more
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