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Notice: We're experiencing a rapid surge in orders and are currently 2 days behind on shipping.  We apologize for the inconvenience.
Notice: We're experiencing a rapid surge in orders and are currently 2 days behind on shipping.  We apologize for the inconvenience.


37 reviews
We are currently experiencing a surge in orders. Orders placed today will ship within 3 business days.
What is L-Proline?

L-proline (not to be confused with Prolene) is a nonessential amino acid that is used in the production of collagen in the human body. L-proline amino acid makes up about 15% of collagen in the body.

L-Proline Amino Acid Benefits

L-proline amino acid works to protect and support the skin and fortify the joints. It contributes to cardiovascular and heart health. It also promotes a healthy gut and supports the digestive system.

  • Protects & supports the skin
  • Fortifies the joints
  • Supports the cardiovascular system
  • Promotes heart health
  • Contributes to a healthy gut
  • Aids the digestive system

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

L-Proline Amino Acid

Supplement Facts
Serving size: 2000 mg
Serving per container: -
Amount Per Serving % Daily Value**
L- Proline 2000 mg *
* Daily Value not established.
** Based on 2,000 calorie diet


 Sugar, soy, dairy, yeast, gluten, corn and additives.

 As a dietary supplement, take 2000 mg once or twice daily, or as directed by physician.

Always consult your health care provider before taking any supplements. Pregnant or lactating women, people with existing medical conditions, or people taking medications should consult their health care provider/s before taking any dietary supplement. If you experience any adverse condition after taking this dietary supplement, discontinue use immediately and consult your health care provider.

Keep out of reach of children.

Customer Reviews
4.9 Based on 37 Reviews
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Mark W.
United States United States
I recommend this product

I have had beneficial results using this product. I have calcium deposits that are built-up throughout my body. The L-proline is gradually breaking them down.The only drawback that I have experienced is that the toxins that have accumulated in these deposits have been released into my system. I do experience some symptoms from this such as: dry skin, redness of skin, occasional blurred vision to mention a few.Overall I am feeling better and I expect the symptoms to diminish as my body cleanses itselt over time.

Doris R.
United States United States
Healing my Rheumatoid Arthritis

I take this in conjunction with High dose VitaminC, Lysine and Niacinamide as per Pauling/Rath Protocol to reverse heart disease but I take it all to generate healthy collagen in connective tissue battling my RA. It works well for me.

Vickie A.
United States United States
Ex Disgruntled buyer

I had a rather rough experience with buying l-proline recently. I left a rather poor review. To say how surprised I was then I got a call from an executive regarding that review telling me they would ship me to proline and they did it for free shocked me. I've never had a company called me when I was just gruntled you have a loyal customer in me, no matter what. To say the least this company rocks. Thank you thank you thank you for your outstanding integrity


Hello Vickie, Thank you for taking my call. I'm glad I was able to help you. You Rock!

Vickie A.
United States United States
Disgruntled buyer

I had been waiting for the proline to come in in the larger size for quite some time as I take it for my heart. Excitedly I saw it arrived on the website, ordered it, and awaited its arrival. I then got an email stating that they weren't able to deliver it I called the company and they didn't know when it would be in as they were just testing it I got no satisfaction from calling them and no help either


Hello Vickie, Thank you for taking my call today. I'm glad I was able to help and listen to your concerns.

Rebecca B.
Using in Linus Pauling Heart Protocol.

I am using this as part of the Linus Pauling Heart Disease Protocol. SO glad to have the bulk option available. Too many pills, otherwise. Thank you!

Heart Health

i use this as part of Pauling's Theory for controlling Heart Disease, Along with Vitamin-c and L-Lysine, Bulk Shipments has great products without fillers.