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Source Naturals, L-Proline Powder, 4 oz (113.4 g)

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In Stock
  • Expiration Date: Apr 2019
  • Shipping Weight: 0.41 lbs (0.19 kg)
  • Product Code: SNS-01551
  • UPC Code: 021078015512
  • Package Quantity: 4 oz (113.4 g)
  • Dimensions: 2.6 x 2.6 x 5.1 in, 0.35 lbs (0.16 kg)
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Product Overview


  • Dietary Supplement

L-Proline is an amino acid involved in the production of collagen and cartilage and may help support healthy joints and a healthy musculoskeletal system. L-Proline can be made in the body, but low protein/vegetarian diets may not always promote optimal production.

Suggested Use

1 to 2 level teaspoons daily, mixed with water or juice.

Other Ingredients

Suitable for vegetarians and Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives or artificial color, flavor or fragrance.


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

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

Supplement Facts
Serving Size: 1 Teaspoon (approx. 2 g)
Servings Per Container: 56
  Amount Per Serving % Daily Value
Calories 10  
L-Proline 2 g
†Daily Value not established.
iHerb Customer Reviews


Posted by 5403612933143784019 on Jul 03, 2016

I take it daily for my skin.

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Tastes nasty

Posted by 5282443125445107708 on May 19, 2016

I can't speak to it's efficacy, but for me, it left a nasty after-taste, so I stopped using it. I recently started the Pauling Therapy and I can take the VitC and Lysine powder in water no problem. But this Proline tastes really awful.

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Source Naturals, L-Proline Powder, 4 oz (113.4 g)

Posted by FEED-ME-MORE on May 07, 2016

I am using it for my joint health and especially my TMJ disorder. I think it is helpful, but I am doing a lot of stuff for my health not just this Proline powder.

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Taste okay in hot drink

Posted by DrHASANAH on Feb 04, 2016

I mixed it with my hot coffee, and added in Lysine powder as well. Lysine powder is salty, thus it goes well with bitter coffee. However, I am not sure whether the hot drink destroy the Lysine and Proline. Anybody has answer?

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Component of Pauline Thrapy

Posted by 5441707168316611686 on Jun 06, 2015

I take this product as a component of the Pauline Therapy for CVD: 800mg per day in divided doses. The two main components of the Pauline protocol are Vitamin C and Lysine. It would appear that Lysine with Proline and Vitamin C builds up the Collagen necessary for tissue repair in the arterial wall whilst Lysine removes plaque. I wouldn't know for at least a few months if this protocol will work to reduce plaque. Hence, my "neutral" rating. The product has a mildly sweet taste reminiscent of glucose. It can be taken straight without liquid (melts in your mouth) or with liquid. It needs a little stirring to dissolve in liquid.

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