This product delivers 100 mg of **5-HTP** (5-Hydroxytryptophan) per chewable tablet, sourced from Griffonia simplicifolia seeds. 5-HTP is a direct precursor to serotonin, the neurotransmitter that regulates mood and converts into melatonin to support your sleep-wake cycle. At 100 mg, this sits at the entry point of the commonly studied range (100-300 mg), making it a reasonable starting dose.
The clinical evidence behind 5-HTP for stress and mood is limited. A few small trials suggest it may support serotonin levels, but there are no large-scale meta-analyses confirming its effectiveness for stress relief in otherwise healthy individuals. The mechanistic logic is strong — your body does use 5-HTP to make serotonin — but the human trial data has not caught up yet. If you respond well to the 100 mg dose, the research supports going up to 300 mg.
One important safety note: 5-HTP should not be combined with SSRIs, MAOIs, or triptan medications, as stacking serotonin-boosting compounds raises the risk of serotonin syndrome, a potentially serious condition. The chewable format and citrus flavoring make this easy to take — best on an empty stomach at bedtime as directed.
NOW
Chewable 5-HTP 100 mg Natural Citrus Flavor
Tablet · 90 servings · $0.19/serving
Supports
Score Breakdown
Ingredients (1)
Within effective range
Label Nutrition Facts
Active Ingredients
From the label · % Daily Value
5-Hydroxytryptophan100 mg
Other Ingredients
Fillers, coatings, and additives
XylitolSweetener
Silicon DioxideAnti-caking
Citric AcidAcidulant
Microcrystalline CelluloseBinder
Microcrystalline CelluloseBinder
Natural FlavorsFlavor
Stearic AcidLubricant
Annatto seed extract (annatto)
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.