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Source Naturals

L-Proline Powder, 4 oz (113.4 g)

4.7 · 823 reviews
1,065 ₽

Dietary Supplement Suitable for Vegetarians 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.

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Dietary Supplement Suitable for Vegetarians 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.

Customer reviews

3.0
verified purchase
good

tastes sweet. overall isn't hard to dissolve apart from little clumps which dissolve only after intense mixing. at first i thought it improved my skin but then i think the effect wore off. i find astaxantin and hyaluronic acid more potent if you seek for something for your skin. otherwise it's a good product, give it a try.

7/14/2014
5.0
verified purchase
Great

Source Naturals L-Proline Powder offers a convenient way to supplement with this important amino acid. The 4 oz (113.4 g) container provides a good supply. L-Proline is crucial for collagen formation, supporting skin, joint, and cardiovascular health. 1 The powder form allows for flexible dosing and easy mixing into beverages or food. Source Naturals is a reputable brand known for its quality supplements. 2 If you're looking for a versatile and effective L-Proline supplement, this is a solid choice

3/28/2025
5.0
verified purchase
Amino Acid

For regulating the heart: 1 tsp L-Proline, 1/2 tsp Lysine, 1g Vit. C every day with food. If that doesn't help, try different forms of magnesium.

12/10/2014
3.0
verified purchase
L-Proline

Ive been taking this for a few years. Sometimes the cover under the lid is not glued to the bottle. A few times there was no plastic protection around the lid. I brought it to the attention at vitacost at least 3 times before they fixed the problem. The last 3 times I purchased it it was safe to take. I didnt trust it before they had this problem with the lid. I will purchase it again as long as this problem is corrected.

6/2/2026
5.0
verified purchase

Great amino acid for making collagen inside the body, might be more efficient than consuming collagen directly, especially if taken together with l-glutamine and glycine (collagen precursors).

10/27/2025
5.0
verified purchase
Quality brand, good product

I've used Source Naturals for more years than I can remember. There products are good quality and this proline is no different. It has a decent flavor as proline is naturally sweet tasting. It mixes well and is easy to take with just a little water.

9/20/2025
5.0
verified purchase
💪 Collagen & Joint Support

L-Proline is an essential amino acid that plays a key role in collagen production, supporting healthy skin, joints, and connective tissues. This pure powder form allows for flexible dosing and easy mixing into drinks or smoothies. A reliable choice for promoting structural strength and overall wellness.

8/27/2025
5.0
verified purchase

I drink it in winter in a course to support bones and muscles. I drink it on an empty stomach. The powder dissolves well even in cool water.

8/8/2025
5.0
verified purchase
powder form proline

bought this and found it to be of good quality and ingredients and size . It is a protein I can take and comes in a compact package , the benefits are for my joints and it's composition isis suitable for my condition and diet . Some use it when training to help the muscle and for energy. Taste is neutral and convenient

6/23/2025
5.0
verified purchase

This is my first time buying this product, and I haven't used it for long enough to say much about it other than that so far I haven't had any bad reaction to it, and that it tastes nothing at all, so I love that. I will come back and update this comment when I have used the product for longer.

1/21/2025