L-Proline 550 mg

Suggested Use

Directions: As a dietary supplement; take 1 capsule daily; or as directed by a physician.

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  BulkSupplements.com L-Proline Powder - Proline Supplements Amino Acid Powder - Unflavored & Gluten Free 2g per Serving 1kg (2.2 lbs) (Pack of 1) 2.2

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  Bulk L-Proline 500 Grams - Highest Quality Ingredients - Bulk Supplements - Wholesale Ingredients - Bulk Ingredients - BoxNutra - Bulk Supplements -

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  PureBulk L-Proline Bags

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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.

• American Nutrition Center

  4.6 (76)

  Vitamin & supplements store

  718 Broadway, Everett, MA 02149

  Directions(617) 394-0678

• The Vitamin Shoppe

  4.3 (69)

  Vitamin & supplements store

  23 Mystic View Rd, Everett, MA 02149

  Directions(617) 387-1595

• GNC

  3.6 (118)

  Vitamin & supplements store

  545 Boylston St, Boston, MA 02116

  Directions(617) 536-1226

• Force Factor

  4.5 (2)

  Vitamin & supplements store

  332 Congress St ste 200, Boston, MA 02210

  Directions(800) 429-0415

• DriveForce

  4.8 (16)

  Vitamin & supplements store

  43 Summer St, Somerville, MA 02143

  Directions(339) 203-0632

• Flex Appeal

  4.6 (34)

  Vitamin & supplements store

  276 Cambridge St, Burlington, MA 01803

  Directions(781) 273-3134

• GNC

  4.1 (33)

  Vitamin & supplements store

  158 Everett Ave #6, Chelsea, MA 02150

  Directions(617) 466-4756

• The Vitamin Shoppe

  4.2 (78)

  Vitamin & supplements store

  735 Broadway, Saugus, MA 01906

  Directions(781) 231-7424

• Adding free leucine to a balanced essential amino acid mixture suppresses intracellular transamination of isoleucine and valine in healthy older adults

  SB Knezek, MPKJ Engelen, KS Coyle, CN Perez… - Clinical Nutrition, 2026 - Elsevier

  Background Adding leucine (LEU) to protein meals enhances protein anabolism, but excess LEU reduces valine (VAL) and isoleucine (ILE) plasma concentrations. We examined in …

  2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2021-10-22. DSLD Label ID: 254737. 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.