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Source Naturals

L-Lysine L-Proline

Vegetarian
Gluten Free

Item: SN534

In Stock


Swanson $12.31
Retail $21.98
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120 Tabs

  • L-proline and L-lysine combination amino acid formula



  • Helps maintain healthy connective tissues



  • Includes natural antioxidant nutrients for free radical defense


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.

Lee Swanson, President

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If you are dissatisfied for any reason, we'll give you a full refund and pay return shipping. Lee Swanson, President of Swanson Health Products

Product Description:

L-Lysine L-Proline

  • L-proline and L-lysine combination amino acid formula



  • Helps maintain healthy connective tissues



  • Includes natural antioxidant nutrients for free radical defense


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.

Product Label:

L-Lysine L-Proline

Supplement Facts

Serving Size 4 Tablets

Servings Per Container 30

  Amount Per Serving %Daily Value
Calories 20  
Total Carbohydrate 2 g 1%*
Vitamin C(from calcium ascorbate and magnesium ascorbate) 1,147 mg 1,912%
Calcium (from calcium ascorbate) 66 mg 7%
Magnesium (from magnesium ascorbate) 46 mg 12%
L-Lysine (from 1,374 mg of free-form, crystalline 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

*Percent Daily Values (%DV) 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: 2 to 4 tablets daily with meals.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

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

NOTE: Natural plant variations may affect tablet color.

  • Suitable for vegetarians.
  • Contains no yeast, dairy, egg, gluten, soy or wheat.
  • Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Terms and Ingredient Definitions

L-Lysine L-Proline

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Source Naturals L-Lysine L-Proline Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

L-Lysine L-Proline 4.5 5 1 2
Very Good Product I am giving this product to my husband to keep him in good shape. Although the amount of lysine and proline in 4 tablets is only a gram each, not as much as recommended for optimum results, the tablets combine several other heart-healthy substances, like vitamin C and hawthorn extract. It seems to be working: my husband feels good, his color is good, and I don't have (much) of a problem getting him to swallow 2 tablets at breakfast, and 2 at supper. If I had to give him all these things separately I might have an insurrection on my hands. I think this is a good product, and I will continue buying it for him. April 2, 2013
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