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Proline & Lysine

‎3.9/5
7 reviews
Swanson Vitamins
USD 17.99

at Swanson Vitamins

Updated: Oct 24, 2026

About this item

L-lysine is one of the essential amino acids you need to obtain from diet, as your body cannot produce it on its own. It is the basic raw material for carnitine synthesis. L-proline can be made in your body, but low protein or vegetarian diets may not always promote optimal L-proline production. Together, L-proline and L-lysine amino acids are the precursors of hydroxylysine (HL), and hydroxyproline (HP), two constituents of collagen. Collagen is an essential component of arterial linings. Vitamin C, a strong antioxidant, is included in this formula as it is also important for the production of healthy collagen. And finally, hawthorn berry and grape seed extract are added for their potent natural antioxidant potential that is due to their high levels of proanthocyanidin. These proanthocyanidin-esters are excellent free radical scavengers.

  • Features
    • L-proline and L-lysine combination amino acid formula
    • Helps maintain healthy connective tissues
    • Includes natural antioxidant nutrients for free radical defense

Specifications

Ingredient

Amount per serving / Daily value %

Dietary Fiber

1 g / 4%*

Vitamin C (as calcium ascorbate and ascorbic acid)

1,000 mg / 1,111%

Calcium (as calcium ascorbate)

66 mg / 5%

Magnesium (as magnesium citrate)

46 mg / 11%

L-Lysine (as L-lysine hydrochloride)

1.1 g / †

L-Proline

1.1 g / †

Grape Seed Extract (Proanthodyn™) With a Procyanidolic Value of 95

100 mg / †

Hawthorn Berry Extract

100 mg / †

Other Ingredients

microcrystalline cellulose, sorbitol, stearic acid, silica, and magnesium stearate.

Other Information

Natural plant variations may affect tablet color., Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, salt, preservatives, or artificial color, flavor or fragrance.

Product photos are for illustrative purposes only and are exemplary. The colors, inscriptions, parameters, dimensions, sizes, functions, and/or any other features of the original products may look different than in reality due to their visual characteristics, so please refer to the product features that are indicated in the product descriptions.

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