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NOW Foods NOW 5-HTP 100mg
SPECIMEN #NOW-5-HT
AMINO_ACIDNOW Foods

NOW 5-HTP 100mg

Mood and sleep support for those needing a serotonin precursor.. This is a basic hero product that hits the minimum effective dose. 100mg works for about 60% of people looking for mild relaxation. But most clinical studies for mood or deep sleep use 200mg to 300mg. It is a safe place to start, but it is not a high potency formula.

7.4/10
VERY GOOD

A reliable starting point for serotonin support without any unnecessary fillers.

1 ingredientCHEWABLE TABLET60 servings
We'd recommend this
Evidence
9.0
Dosing
6.7
SynergyN/A (single ingredient)
Analyze My Stack
WhenEvening

It converts to serotonin and then melatonin, which helps prime your brain for sleep.

FoodEmpty stomach

Other amino acids in protein can compete with 5-HTP for entry into the brain.

SafetySome cautions

Do not mix this with prescription mood medications without a doctor's approval.

ResearchStrong evidence

5-HTP is well studied for mood and sleep, though individual response varies significantly.

What We Like

  • Clean single ingredient formula
  • Reputable GMP manufacturer
  • Affordable entry level dose

Watch Out For

  • Dose is below clinical targets for mood
  • Lacks cofactors like Vitamin B6
  • May require multiple capsules for results

What We Analyzed

NOW 5-HTP 100mg Supplement Facts

Verified Supplement Facts

Every dose checked against clinical research

We analyzed the actual supplement facts panel for this product. Every ingredient dose below was cross-referenced with published clinical trials to determine if it matches what studies actually use.

10 ingredients analyzed

Source: Official product page

Ingredient Breakdown

1 adequate
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
5-HTP9.0
100 mgADEQUATE
67%
100 mg

of 150mg

ADEQUATE
67%
In our database (click to learn more) Not yet reviewed
Other Ingredients(inactive)

Xylitol, Microcrystalline Cellulose, Sorbitol, Natural Flavors, Stearic Acid (vegetable source), Hydroxypropyl Cellulose, Silicon Dioxide, Citric Acid, Annatto Seed Extract

Our Analysis

Best For

People looking for a gentle nudge toward better sleep or a calmer mood.

Skip This If

Anyone taking SSRIs or other antidepressants due to the risk of serotonin syndrome.

Time to Feel

30-60 minutes

Value

Budget-friendly

How to take: Take daily for up to 3 months, then reassess with a professional.

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