L-Proline 500 mg®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Serving Size: 1 Capsule(s) · 1 per day

Not Present

• 

  Douglas Laboratories L-Proline 60 Capsules

  DrHagmeyer.com5.0(4)

  $36.08
• 

  Now Foods L-Proline 500 Mg 120 Veg Capsules

  Swanson Health Products4.7(1200)

  $11.89
• 

  Best Naturals L-Proline 500 mg 120 Capsules

  Target4.8(20)

  $10.00
• 

  Bestvite L-Proline 500mg 120 Vegetarian Capsules

  Walmart - BESTVITE INC4.9(16)

  $21.99
• 

  L-Proline 1000g Powder

  Jo Mar Labs

  $161.40
• 

  L-Proline 500 mg 120 Capsules

  Physicians Preference Vitamins

  $35.95
• 

  Proline 500 mg 100 caps (Montiff)

  Lexington Natural Health Center

  $31.00
• 

  Swanson L-Proline 500 mg 100 Capsules

  iHerb4.8(209)

  $14.29

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

• LFTR SUPPLEMENTS

  5.0 (20)

  Vitamin & supplements store

  2421 Yates Ave, Commerce, CA 90040

  Directions(818) 476-8420

• Vitamin World

  4.8 (18)

  Vitamin & supplements store

  100 Citadel Outlet, Commerce, CA 90040

  Directions(323) 721-1197

• GNC

  4.5 (35)

  Vitamin & supplements store

  458 Fair Oaks Ave, South Pasadena, CA 91030

  Directions(626) 441-2947

• Limitless Nutrition Zone

  5.0 (40)

  Vitamin & supplements store

  16226 Whittier Blvd, Whittier, CA 90603

  Directions(562) 905-6067

• Princess Lifestyles, LLC

  4.7 (10)

  Manufacturer

  418 Valley Blvd, San Gabriel, CA 91776

  Directions(626) 939-0688

• Nutrition 4 Less

  4.7 (58)

  Vitamin & supplements store

  443 N Azusa Ave, West Covina, CA 91791

  Directions(626) 974-5477

• Megahealth Supply, Inc.

  3.0 (2)

  Health food store

  1045 E Valley Blvd, San Gabriel, CA 91776

  Directions(626) 288-2122

• GNC

  3.3 (41)

  Vitamin & supplements store

  2216 S Atlantic Blvd, Monterey Park, CA 91754

  Directions(323) 887-8778

• Risk Assessment of" Other Substances"–L-proline

  K Holvik, L Frøyland, M Haugen, S Henjum, M Løvik… - 2018 - pesquisa.bvsalud.org

  … effects of L-proline supplementation in … 500 mg/kg bw L-proline was administered as a growth hormone stimulatory agent to 20 children with hyposomatotropic dwarfism and 20 healthy …

  20181 citations

• L-proline supplementation improves nitric oxide bioavailability and counteracts the blood pressure rise induced by angiotensin II in rats

  J Leal, L Teixeira-Santos, D Pinho, J Afonso… - Nitric Oxide, 2019 - Elsevier

  … We evaluated whether l-proline (Pro) supplementation improves redox status and nitric oxide (NO) bioavailability and prevents or delays angiotensin II (AngII)-induced hypertension. …

  201934 citations

• Integrating 16S rRNA gene sequencing and metabolomics analysis to reveal the mechanism of L-proline in preventing autism-like behavior in mice

  J Fang, SG Kang, K Huang, T Tong - Nutrients, 2025 - mdpi.com

  … Collectively, these findings suggest that the L-proline treatment can markedly enhance the health status of the microbiota and ameliorate the degree of gut microbiota dysbiosis. …

  20256 citations

• Vitamin E, Heart Disease and Tocotrienols

  J Dach - jeffreydachmd.com

  … L-Proline 2-3 grams a day in divided doses These supplements can be obtained at any the health food … A convenient powder form can be obtained at Tower Laboratories. They have a …

• L-Proline 500 mg 60 caps by Douglas Labs

  RNR Points

• Safety of L-proline as a stabilizer for immunoglobulin products

  JB Hagan, RL Wasserman, JS Baggish… - Expert review of …, 2012 - Taylor & Francis

  … is primarily based on medical necessity (ie, poor venous access, wear-off effect, or intolerance of IVIG) and patient preference Citation[1,2]. Privigen and Hizentra use L-proline as a …

  201216 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2020-08-23. DSLD Label ID: 232305. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.