Compare every 5-HTP product across UK retailers on Suppio, ranked by true value - price per active dose, not pack size. Prices refreshed daily.
Precursor to serotonin, supports mood and sleep
We rank 5-HTP by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
5-HTP is a natural compound that acts as a precursor to serotonin. A precursor is a starting material that the body uses to build another substance; in this case, it is the building block needed to create the mood-regulating chemical serotonin.
It is primarily used to support emotional well-being and improve sleep quality. By increasing the available building blocks for serotonin, it aims to help the body better regulate mood and sleep cycles.
The supplement is commercially produced by extracting the compound from the seeds of an African plant called Griffonia simplicifolia. The seeds are processed to isolate the active ingredient, which is then purified into a powder and placed into capsules or tablets.
This ingredient is generally mid-range in price. This is because the raw seeds must be sourced from specific regions in Africa and then undergo a targeted extraction process, making it more costly to produce than basic synthetic vitamins but cheaper than rare specialised extracts.
| Purpose | Typical studied dose | Evidence |
|---|---|---|
| body composition management and mental health regulation | 50-200 mg per day | emerging |
| REM sleep behavior disorder in patients with Parkinson's disease | 50 mg per day | limited |
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Precursor to serotonin, supports mood and sleep
We rank 5-HTP by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.