5-HTP 100 mg

by Metabolic Maintenance · capsule · 120 capsules

  • On the market (NIH)
  • UPC 8 38287 00109 6
  • DSLD label 274835
  • Serving 1 capsule
  • 120 servings

5-HTP 100 mg by Metabolic Maintenance lists 5 ingredients, 5 with an amount per serving of 1 capsule, such as 100 mg of vitamin C, 3 mg of vitamin B6, 100 mg of 5-hydroxytryptophan and 300 mg of glycine. Its current label entered the NIH Dietary Supplement Label Database on November 22, 2022.

What is in 5-HTP 100 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).

5-HTP 100 mg: Supplement Facts rows against the market (DSLD label 274835, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid100 mg111%Vitamin C in 5-HTP 100 mg against 18,583 products100 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg100 mg

50% of 18,583 products listing vitamin C give more (median 100 mg).

Vitamin B63 mg176%Vitamin B6 in 5-HTP 100 mg against 15,277 products3 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg3 mg

64% of 15,277 products listing vitamin B6 give more (median 6 mg).

Pyridoxal 5' Phosphate5 mg
5-Hydroxytryptophan100 mg5-HTP in 5-HTP 100 mg against 676 products100 mg per serving; the middle half of products list 50 mg to 100 mg, the median 100 mg.100 mg

18% of 676 products listing 5-HTP give more (median 100 mg).

Glycine300 mgGlycine in 5-HTP 100 mg against 1,078 products300 mg per serving; the middle half of products list 100 mg to 846 mg, the median 300 mg.300 mg

49% of 1,078 products listing glycine give more (median 300 mg).

Source: NIH ODS Dietary Supplement Label Database, label 274835 (entered November 22, 2022), 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?

1 product lists the very same ingredients; the nearest amounts come first.

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: One (1) capsule daily, or as directed by a healthcare professional. Best taken between meals or at bedtime.
Warnings
Pregnant or lactating women, consult your healthcare professional before taking this product.
Keep tightly closed in a cool, dry place, out of the reach of children.
Allergens and what it does not contain
Caution: Do not take with MAO inhibitors or tricyclic antidepressants.
Egg free Gluten free Free of nuts Dairy free

Source: label statements in DSLD label 274835.

What else is on the label?

Other ingredients: Vegetarian Cellulose Capsule.

How many labels does 5-HTP 100 mg have?

2 labels are on file under this name since September 22, 2022: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 274835 (current) Entered November 22, 2022 · on the market · 120 capsules · UPC 8 38287 00109 6
  2. Label 273945 Entered September 22, 2022 · on the market · 60 capsules · UPC 8 38287 00101 0

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Metabolic Maintenance (manufacturer), Sisters, Oregon. All Metabolic Maintenance products.

Where next?