L-Serine 500 mg
by Swanson · capsule · 60 veggie caps
- On the market (NIH)
- DSLD label 337623
- Serving 1 veggie capsule
- 60 servings
L-Serine 500 mg by Swanson lists one ingredient: 500 mg of AjiPure pharmaceutical grade L-serine per serving of 1 veggie capsule. Its current label entered the NIH Dietary Supplement Label Database on August 22, 2025.
What is in L-Serine 500 mg?
Each row as the label prints it, per serving of 1 veggie 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 |
|---|---|---|---|
| AjiPure pharmaceutical grade L-Serine | 500 mg | Higher than 54% of 314 products listing serine (median 408 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 337623 (entered August 22, 2025), version 9.4.0. See the label on DSLD or its label image (PDF). 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-Serine 500 MilligramsMontiff same ingredients
- Pharmaceutical Grade AjiPure L-Serine 500 mgSwanson Ultra · off the market same ingredients
- L-Serine 500 mgDouglas Laboratories same ingredients
- Pure L-SerinePeak Performance · off the market same ingredients
- L-Serine 500 mgNutricost same ingredients
- L-Serine 500 mg CapsulesBulkSupplements.com 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
- Suggested Use: As a dietary supplement, take one veggie capsule per day with water.
- Warnings
- Warning: For adults only. Keep out of reach of children.
- Consult your healthcare provider before using this or any product if you are pregnant or nursing, taking medication or have a medical condition.
- Do not use if seal is broken.
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 337623.
What else is on the label?
Other ingredients: Rice Flour, Hypromellose, Calcium Laurate.
How many labels does L-Serine 500 mg have?
One label is on file, entered on August 22, 2025.
- Label 337623 (current) Entered August 22, 2025 · on the market · 60 veggie caps
DSLD also links this label to: Pharmaceutical Grade AjiPure L-Serine 500 mg (image difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Swanson (manufacturer). All Swanson products.