Affiliate disclosure. We may earn a commission when you buy through this link, at no extra cost to you.
| Ingredient | Amount | % DV% Daily Value — how much of the recommended daily intake one serving provides, based on a 2,000 calorie diet. 100% = full daily need. Values over 100% are common for water-soluble vitamins (B, C) and generally safe. Values over 200% are highlighted. |
|---|---|---|
| L-Proline | 500 mg | — |
Other ingredients: Gelatin, Microcrystalline Cellulose, Magnesium Silicate, Vegetable Stearate
This score evaluates label quality — dosage disclosure, transparency, cleanliness of inactive ingredients, and formula composition. It does not measure clinical efficacy, bioavailability, or third-party testing. Read full methodology
Products with overlapping ingredients and a higher SupplementScore. Based on dosage transparency, label cleanliness, and formula quality.
Taken L-Proline 500 mg? Your experience helps others decide. It takes about a minute.
All scores are algorithmically generated from publicly available label data (NIH Dietary Supplement Label Database) and reflect label quality — not clinical efficacy, safety, or product quality. This page is not affiliated with or endorsed by Douglas Laboratories. If you represent this brand and believe any information is inaccurate, please contact us for a correction. Read full methodology
Alternatives share ingredients with this product (or come from its category, Multivitamins) and have a higher overall score. This is not a recommendation — always verify ingredients and dosages match your needs.