L-Proline 550 mg
by BulkSupplements.com · capsule · 100 gelatin capsules
- On the market (NIH)
- DSLD label 254737
- Serving 1 capsule
- 100 servings
L-Proline 550 mg by BulkSupplements.com lists one ingredient: 550 mg of L-proline per serving of 1 capsule. Its current label entered the NIH Dietary Supplement Label Database on October 22, 2021.
What is in L-Proline 550 mg?
Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| L-Proline | 550 mg | Higher than 56% of 387 products listing proline (median 487.5 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 254737 (entered October 22, 2021), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.
The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
6 products list the very same ingredients; the nearest amounts come first.
- Pure L-Proline USP Pharma Grade PowderHard Rhino same ingredients
- Pure L-Proline 500 MilligramsMontiff same ingredients
- Pharmaceutical Grade AjiPure L-Proline 500 mgSwanson Ultra · off the market same ingredients
- L-Proline 500 mgSwanson Premium Brand · off the market same ingredients
- L-Proline 500 mgSolgar · off the market same ingredients
- L-Proline 500 mgDouglas Laboratories same ingredients
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Directions: As a dietary supplement, take 1 capsule daily, or as directed by a physician.
- Warnings
- Warning: This product is not intended for use by those with a serious medical condition or pregnant or lactating women.
- Consult your physician before use.
- Keep out of reach of children!
- Allergens and what it does not contain
- Free of: Sugar, soy, dairy, yeast, gluten or additives
- Storage
- Storage: Keep dry, cool & dark
Source: label statements in DSLD label 254737.
What else is on the label?
Other ingredients: Bovine Gelatin Capsules.
How many labels does L-Proline 550 mg have?
4 labels are on file under this name since August 23, 2021: other sizes, label designs and reformulations. The current one leads this page.
- Label 254737 (current) Entered October 22, 2021 · on the market · 100 gelatin capsules
- Label 254736 Entered October 22, 2021 · on the market · 300 vegetarian capsules
- Label 254725 Entered October 22, 2021 · on the market · 300 gelatin capsules
- Label 252819 Entered August 23, 2021 · on the market · 100 vegetarian capsules
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names BulkSupplements.com (distributor), Henderson, NV. All BulkSupplements.com products.