Source Naturals L-Proline L-Lysine

120 tablets
Source Naturals L-Proline L-Lysine

L-Lysine and L-Proline amino acids are the precursors of hydroxylysine (HL), and hydroxyproline (HP), two constituents of collagen. Collagen is an essential component of arterial linings. With Vitamin C, a strong antioxidant, which is also essential for the production of collagen, and hawthorn berry and grape seed extract for their high levels of proanthocyanidins.

Supplement Facts

Serving Size: 4 Tablets
Servings Per Container: 30


Amount Per Serving

% Daily Value




Total Carbohydrate

2 g


Vitamin C (from calcium ascorbate and magnesium ascorbate)

1,147 mg


Calcium (from calcium ascorbate)

66 mg


Magnesium (from magnesium ascorbate)

46 mg


L-Lysine (from 1,374mg of free-form, crystalline L-Lysine hydrochloride)

1.1 g



1.1 g


Grape Seed Extract

100 mg


Hawthorn Berry Extract

100 mg


* Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value not established.

Other Ingredients: Sorbitol, stearic acid, microcrystalline cellulose, colloidal silicon dioxide, and magnesium stearate.

Suggested Use

Take 2 to 4 tablets daily with meals.


If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.