NOW Supplements, 5-HTP (5-hydroxytryptophan) 50 mg, 180 Veg Caps

Our verdict

NOW Supplements, 5-HTP (5-hydroxytryptophan) 50 mg, 180 Veg Caps works out to $0.09 per serving of 5-htp, at 50mg per serving in capsule form. That puts it the cheapest quarter of the 63 5-htp products we can price per dose, where the typical serving costs $0.17, a Value Index of 1.8 where the median product is 1.0. One container lasts 180 days at the label dose of 1 serving a day, about $2.83 a month. We could not verify a third-party certification for NOW in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.