Double Strength 5-HTP 200 mg

by NOW · capsule · 60 veg capsules

  • On the market (NIH)
  • UPC 7 33739 00108 5
  • DSLD label 314275
  • Serving 1 veg capsule
  • 60 servings

Double Strength 5-HTP 200 mg by NOW lists 6 ingredients, 6 with an amount per serving of 1 veg capsule, such as 20 mg of niacin, 2 mg of vitamin B6, 200 mg of 5-hydroxytryptophan and 100 mg of glycine. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2024.

What is in Double Strength 5-HTP 200 mg?

Each row as the label prints it, per serving of 1 veg 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).

Double Strength 5-HTP 200 mg: Supplement Facts rows against the market (DSLD label 314275, January 2026 release)
IngredientAmount% DVAmong products listing it
Niacinas Niacinamide, Vitamin B320 mg125%Niacin in Double Strength 5-HTP 200 mg against 12,413 products20 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg20 mg

46% of 12,413 products listing niacin give more (median 20 mg).

Vitamin B6as Pyridoxine Hydrochloride2 mg118%Vitamin B6 in Double Strength 5-HTP 200 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).

5-Hydroxytryptophanas Griffonia simplicifolia Seed Extract200 mg5-HTP in Double Strength 5-HTP 200 mg against 676 products200 mg per serving; the middle half of products list 50 mg to 100 mg, the median 100 mg.200 mg

Higher than 88% of 676 products listing 5-HTP (median 100 mg).

Glycinefree-form100 mgGlycine in Double Strength 5-HTP 200 mg against 1,078 products100 mg per serving; the middle half of products list 100 mg to 846 mg, the median 300 mg.100 mg

64% of 1,078 products listing glycine give more (median 300 mg).

Taurinefree-form100 mgTaurine in Double Strength 5-HTP 200 mg against 2,337 products100 mg per serving; the middle half of products list 110 mg to 1,000 mg, the median 500 mg.100 mg

76% of 2,337 products listing taurine give more (median 500 mg).

Inositol100 mgInositol in Double Strength 5-HTP 200 mg against 4,042 products100 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.100 mg

Higher than 76% of 4,042 products listing inositol (median 30 mg).

Source: NIH ODS Dietary Supplement Label Database, label 314275 (entered July 25, 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?

2 products list 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
Suggested Usage: Take 1 capsule daily, preferably on an empty stomach at bedtime.
Warnings
Caution: For adults only.
Not recommended for pregnant/nursing women. Consult physician if taking medications (especially antidepressants), or have a medical condition.
May cause drowsiness and mild transient GI symptoms. Take with food in case of GI upset.
Keep out of reach of children.
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Non-GMO
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 314275.

What else is on the label?

Other ingredients: Hypromellose, Ascorbyl Palmitate, Silicon Dioxide.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Triangle K (Kosher); GMP Quality Assured Crescent H Halal.

How many labels does Double Strength 5-HTP 200 mg have?

8 labels are on file under this name since October 1, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 314275 (current) Entered July 25, 2024 · on the market · 60 veg capsules · UPC 7 33739 00108 5
  2. Label 204656 Entered July 24, 2019 · on the market · 120 veg capsules · UPC 7 33739 00111 5
  3. Label 204644 Entered July 24, 2019 · off the market February 12, 2024 · 60 veg capsules · UPC 7 33739 00108 5
  4. Label 71968 Entered March 24, 2017 · off the market December 6, 2018 · 120 veg capsules · UPC 7 33739 00111 5
  5. Label 70145 Entered January 25, 2017 · off the market December 6, 2018 · 60 veg capsules · UPC 7 33739 00108 5
  6. Label 53324 Entered November 24, 2015 · off the market March 7, 2017 · 120 veg capsules · UPC 7 33739 00111 5
  7. Label 53323 Entered November 24, 2015 · off the market November 30, 2016 · 60 veg capsules · UPC 7 33739 00108 5
  8. Label 13410 Entered October 1, 2012 · off the market October 23, 2015 · 120 veg capsules · UPC 7 33739 00111 5

DSLD also links this label to: 5-HTP 200 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 NOW FOODS (manufacturer), Bloomingdale, IL. All NOW products.

Where next?