Overview
Serotonin precursor — used post-MDMA to support depleted 5-HT stores. Never combine same-day.
- Dietary protein from animal sources (meat, fish, eggs, dairy) and plant sources (soy, legumes, grains)
- Free-form amino acid powders and capsules
- Targeted pre-workout, recovery, or sleep formulations
- Free-form crystalline powder
- Capsules or tablets
- Pre-mixed recovery or hydration beverages
- Time-release formulations
Mechanism of action
Crosses BBB and decarboxylates to serotonin, replenishing pre-synaptic pools.
- · Serotonin synthesis
Effects on the body
Organ system effects
5-HTP (Post-MDMA Replenishment) modulates monoaminergic and GABAergic tone relevant to mood and anxiety regulation.
Evidence-based benefits
Reduces post-MDMA 'comedown' mood drop (anecdotal)
AnecdotalPotential side effects
- · Nausea
- · Serotonin syndrome if combined with MDMA, SSRIs, or MAOIs
Drug interactions
Safety & non-supplemental interactions
Educational summary — always confirm with your clinician or pharmacist before starting, stopping, or combining with prescription therapy.
- ·Discuss with a clinician if you have active liver disease or take hepatotoxic medications.
Supplement interactions
- EGCGSlows 5-HTP peripheral decarboxylation.
- Active MDMASerotonin syndrome risk — only use 24h+ after, never before/during.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified 5-HTP (Post-MDMA Replenishment) — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.5-HTP (Post-MDMA Replenishment) third party tested NSF
CapsulesPre-measured 5-HTP (Post-MDMA Replenishment) capsules — easiest for travel and consistent daily dosing without scoops or scales.5-HTP (Post-MDMA Replenishment) capsules
PowderBulk unflavored 5-HTP (Post-MDMA Replenishment) powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.5-HTP (Post-MDMA Replenishment) powder unflavored
Best sellersMost-purchased 5-HTP (Post-MDMA Replenishment) products on Amazon — a quick way to see what's reviewed widely before you commit.5-HTP (Post-MDMA Replenishment) best sellerScientific evidence8Show studiesHide studies
Serotonergic precursors after MDMA: pharmacological review
de Win MM, et al.
Review of serotonergic recovery strategies after MDMA.
5-HTP repletion plausible 24+ h after use; avoid same-day to prevent syndrome.
PubMed: 5-HTP (Post-MDMA Replenishment) — Reduces post-MDMA 'comedown' mood drop
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Google Scholar: 5-HTP (Post-MDMA Replenishment) — clinical evidence
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