Studied for low mood, but reliable evidence of benefit remains insufficient.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
On the label
Take 1 capsule per day on an empty stomach or as directed by your qualified health careconsultant.
Each of these raises serotonin activity on top of St. John's Wort, and together they can trigger serotonin syndrome — agitation, rapid heartbeat, raised blood pressure. Not without medical supervision.
$18.37
$0.20 / serving
Near the median of 61 5-HTP supplements
Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.
Not medical advice. Consult your healthcare professional.