PlainVitamins

5-HTP 100 mg

by Everyday Health · capsule · 90 capsules

  • On the market (NIH)
  • UPC 9 421902 427145
  • DSLD label 306063
  • Serving 1 to 3 capsules; amounts per 1 capsule
  • 90 servings

5-HTP 100 mg by Everyday Health lists 5 ingredients, 5 with an amount per serving of 1 capsule, such as 100 mg of 5-hydroxytryptophan, 230 mg of magnesium glycinate, 10 mg of niacin and 2 mg of pyridoxine. Its current label entered the NIH Dietary Supplement Label Database on January 24, 2024.

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 306063, January 2026 release)
IngredientAmount% DVAmong products listing it
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).

Magnesium Glycinate230 mg32%

The label names the compound (Magnesium Glycinate); its amount is likely the compound's weight, not the magnesium it holds, so it is not placed among other products.

Niacinas Vitamin B310 mg63%Niacin in 5-HTP 100 mg against 12,413 products10 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg10 mg

77% of 12,413 products listing niacin give more (median 20 mg).

Pyridoxineas Vitamin B62 mg125%Vitamin B6 in 5-HTP 100 mg against 15,277 products2 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg2 mg

69% of 15,277 products listing vitamin B6 give more (median 6 mg).

Zincas Zinc Acetate4 mg45%Zinc in 5-HTP 100 mg against 13,186 products4 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg4 mg

81% of 13,186 products listing zinc give more (median 11 mg).

Source: NIH ODS Dietary Supplement Label Database, label 306063 (entered January 24, 2024), 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?

The products whose ingredient lists overlap most with 5-HTP 100 mg's, rare ingredients counting for more.

  • SerotoninHelpHerbs SRA 4 shared, 74% alike
  • Zma-5Scientific Nutrition For Advanced Conditioning SNAC · off the market 4 shared, 71% alike
  • 5-HTP 50 mgHighland Laboratories 3 shared, 69% alike
  • 5-HTP 100 mgHighland Laboratories 3 shared, 69% alike
  • UpliftOL Olympian Labs 4 shared, 65% alike
  • Mood EnhancePureFormulas · off the market 4 shared, 65% alike

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: Adults, take up to 3 capsules per day.
Warnings
Keep out of reach of children
Caution: Check with your doctor first if you are already taking other supplements or drugs. If you are currently taking, or within the last 90 days have taken, any anti-stress, anti-anxiety, weight-control drugs, other serotonin-modifying agents, or anti-depression medications, do not take 5-HTP supplementation without first consulting your physician.
Storage
Store cool and dry

Source: label statements in DSLD label 306063.

What else is on the label?

Other ingredients: Vegetarian capsule shell, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP Good Manufacturing Practice.

How many labels does 5-HTP 100 mg have?

One label is on file, entered on January 24, 2024.

  1. Label 306063 (current) Entered January 24, 2024 · on the market · 90 capsules · UPC 9 421902 427145

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

Who makes it?

The label names Everyday Health Ltd (manufacturer), Rangiora, New Zealand. All Everyday Health products.

Where next?