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L-Lysine - Essential Amino Acid Support – 620 MG (100 Capsules)

L-Lysine - Essential Amino Acid Support – 620 MG (100 Capsules)

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L-Lysine - Essential Amino Acid Support – 620 MG (100 Capsules)

Rated 4.8 out of 5
76 Reviews2 Questions19 Answers
Non-GMOGluten Free

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Product Info

About This Product

  • Provides essential amino acid support
  • Non-GMO and gluten-free

L-lysine is an essential amino acid and building block of protein that encourages a healthy stress response, helps inhibit glycation, and supports bone and vascular health. L-lysine can only be obtained through diet, making it trickier for certain individuals—we’re looking at you, vegans—to get the right balance of essential amino acids day-to-day.

Formulated with 620mg of l-lysine per serving, these capsules from Life Extension are a convenient way to ensure you get enough of this essential amino acid.

Frequently Asked Questions

What is glycation?

While natural with age, glycation is a biochemical reaction that is often accelerated by elevated levels of sugar in the blood, resulting in the formation of advanced glycation end-products (AGEs). Research suggests AEGs contribute to wrinkles and loss of skin elasticity.

Read More

Directions

Take one (1) capsule one to three times daily on an empty stomach, or as recommended by a healthcare practitioner. Store tightly closed in a cool, dry place.

Warning

Keep out of reach of children. Do not exceed recommended dose. Do not purchase if outer seal is broken or damaged. When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

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Supplement Facts

Serving Size: 1 Capsule
Number of Servings: 100 Servings
Amount Per Serving
% Daily Value
L-LYSINE  - L-LYSINE HCI
**%

Other Ingredients:

Vegetable cellulose (capsule), vegetable stearate, l-leucine.

Specifications

Brand:
Life Extension
Form:
Vegetarian Capsules
Strength:
620 MG
Serving Size:
1 Capsule
Number of Servings:
100 Servings
Price per Serving:
($0.11 / serving)
Product Weight:
5  OZ
Specialty Diets:
Non-GMO ,  Gluten Free
Item # :
UX-13552 / 2300614

Product Reviews
   (76)

76 Ratings
4.8out of 5 stars
76 Ratings

Rated 5 stars by 92% of reviewers

Rated 4 stars by 3% of reviewers

Rated 3 stars by 3% of reviewers

Rated 2 stars by 0% of reviewers

Rated 1 star by 3% of reviewers

Would you recommend?
1-10 of 76 Reviews
Customers talk about
Mar 30, 2026
Rated 5 out of 5
aaa
Good product. I'm using it on going for some time
ELDA
Location
Undisclosed
Was this helpful?
Feb 9, 2026
Rated 5 out of 5
Must try amino support
I've tried a lot of amino acids through the years, and I have found this one to be the most effective. And I love that the dosage is 620 mg.
EUNICE
Location
Undisclosed
Would you recommend?:Yes
Was this helpful?
Jan 1, 2026
Rated 5 out of 5
LOVE IT!
Works very very well. Love it. I feel it healing my body within days of use. Would re-purchase again..
Alexander JVerified Purchaser
Location
Kingston, NY, US
Gender
Male
Age Range
25-34
Would you recommend?:Yes
Purchased on Dec 1, 2025
Was this helpful?
Dec 10, 2025
Rated 5 out of 5
Effective daily supplement
Have used this product for many years. It has been effective, easy for me to swallow and has been helpful managing certain health issues.
STEVEN
Location
Undisclosed
Was this helpful?
Oct 29, 2025
Rated 5 out of 5
amazing
works!
RACHEL B
Location
VA, US
Gender
Female
Age Range
18-24
Would you recommend?:Yes
Was this helpful?
Oct 26, 2025
Rated 5 out of 5
Good quality
I feel good knowing I'm getting a high quality product!
Margaret
Location
Undisclosed
Was this helpful?
Oct 10, 2025
Rated 3 out of 5
Good but not too needed at this time
Ok but didn't notice a difference
Nancy
Location
Undisclosed
Was this helpful?
Aug 8, 2025
Rated 5 out of 5
good
good
Angelina
Location
Undisclosed
Would you recommend?:Yes
Was this helpful?
Jul 6, 2025
Rated 5 out of 5
L-Lysine
This essential amino acid is a great product, with so many health benefits. Glad you carry it.
ANN
Location
Undisclosed
Would you recommend?:Yes
Was this helpful?
Jun 6, 2025
Rated 5 out of 5
A must in your health routine.
I have used this brand of L-Lysine for years. I recommend it to so many people with great results. Now I'm buying directly and know it's the true product.
Cathy
Location
Undisclosed
Would you recommend?:Yes
Was this helpful?
Disclaimer:

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews.Please read the full product reviews disclaimer.

Q&A

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Start typing and see existing answers.
2 Questions
Why did you choose this?
The Vitamin ShoppeStore

New to me

KIMBERLY W

I like L-Lysine it grows your hair and your nails

Linda B

Like product

Suzan B

on sale other brands were out of stock

john k
Hi- Why does the online ingredients list include “l-leucine” (last item) but the actual bottle does not? I asked an in-store employee and they did not know.
A shopper
Disclaimer:

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews.Please read the full product reviews disclaimer.

Shipping Info

 

FREE STANDARD SHIPPING on orders of $45 or more

How to get FREE Standard Shipping:

  1. Ship to an address within the United States (including U.S. territories)
  2. Place your online order of $45 or more* - after promotions and before tax are applied
  3. Use "Standard" shipping option at checkout

Orders will be shipped within 24 hours of order placement*, pending verification of billing information and shipping method selected. International orders and orders containing gift cards or items that are not currently in stock will be processed as quickly as possible.

 

*Excludes all orders placed on major US holidays (Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day and New Year's Day).

 

Orders for states outside of the continental U.S. (including those of $45 or more) may be subject to a delivery surcharge. This will be noted in the order summary based on your shipping address at checkout.

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Experts Break it Down

5 Groups of People Who Could Benefit From More Amino Acids

5 Groups of People Who Could Benefit From More Amino Acids

Just like some folks can benefit from including more calcium or omega-3s in their diets, certain groups of people can reap better health by ramping up amino acids. Read on to discover if you’re one of the many people who could use more aminos in your life.

Which Pump-Boosting Amino Acid Is Better: L-Arginine Or L-Citrulline?

Which Pump-Boosting Amino Acid Is Better: L-Arginine Or L-Citrulline?

When it comes to fitness-boosting amino acids, BCAAs seem to get all of the attention. However, two other amino acids deserve some spotlight, too: l-arginine and l-citrulline. Here’s what you need to know about their unique benefits—and which to incorporate into your workout routine.

5 Amino Acids All Gym Lovers Should Know About

5 Amino Acids All Gym Lovers Should Know About

Whether you’re considering adding an amino acid supplement to your fitness routine, don’t know much about the one you’re already taking, or just want to understand the magic that happens inside your muscles—we’ve got all the amino info you need.

Looking For More
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