Where Does 5-HTP Come From — and How Is It Made?

From a seed pod in West Africa to the capsule on your shelf — here's where 5-HTP actually comes from, and how it's made.

TL;DR

  • 5-HTP has two origins: your body produces it from tryptophan, and it's found in the seeds of Griffonia simplicifolia
  • Griffonia simplicifolia is a plant native to West and Central Africa — its seeds are the primary commercial source
  • Supplement-grade 5-HTP is extracted and standardised from these seeds — not synthesised in a lab
  • Quality depends on the manufacturing steps: extraction, standardisation, and third-party testing
  • 5-HTP isn't found in meaningful amounts in food — which is why supplementation makes sense for therapeutic amounts

Most 5-HTP labels just say "Griffonia simplicifolia" with little explanation. Here's what that actually means — where the compound comes from, and how it gets from a seed in West Africa into a capsule you can trust.

The two sources of 5-HTP

Your own body: 5-HTP is produced naturally as part of converting the amino acid tryptophan (from food) into serotonin. An enzyme called tryptophan hydroxylase makes 5-HTP, which then converts to serotonin — this happens continuously as part of normal metabolism.

The Griffonia simplicifolia plant: The seeds of this West African shrub contain some of the highest natural concentrations of 5-HTP found anywhere — 5–20% by weight. This makes it the primary commercial source for 5-HTP supplements worldwide. For more on the plant itself, see What Is Griffonia Simplicifolia?

How it's made — seed to capsule

The journey from seed to finished supplement runs through several steps, and each is where quality is either maintained or compromised:

  • Harvesting: seeds are harvested from cultivated plants in West Africa (typically Ghana or Ivory Coast), dried, and prepared for processing
  • Extraction: food-grade solvent extraction dissolves the 5-HTP out of the seed material, which is then separated and purified
  • Standardisation: the extract is concentrated and tested to a set percentage — commonly "98% 5-HTP" — for consistent dosing per capsule
  • Testing: reputable manufacturers test for purity, potency, heavy metals, microbial contamination, and solvent residues — ideally via independent third-party labs
  • Encapsulation: the standardised extract is measured into capsules (gelatin or plant-based) with minimal additional ingredients

Key points

  • Primary plant source: Griffonia simplicifolia, native to West and Central Africa
  • Extracted, not synthesised: quality 5-HTP is a direct plant extraction — see natural vs synthetic 5-HTP
  • Standardisation matters: the percentage tells you the concentration of 5-HTP in the extract
  • Third-party testing is the gold standard: it verifies purity and confirms no solvent residues remain
  • Not from food: tryptophan is in many foods, but 5-HTP itself isn't present in meaningful dietary amounts

FAQs

Why is Griffonia simplicifolia used?
Its seeds naturally contain very high concentrations of 5-HTP, making it an efficient, clean plant source for extraction. See What Is Griffonia Simplicifolia?

Can I get 5-HTP from food?
Not in meaningful supplemental amounts. Tryptophan (its precursor) is in many foods, but 5-HTP itself isn't. See Foods That Support Serotonin.

Is solvent extraction safe?
Yes — food-grade solvent extraction is a standard, well-established process. The solvents are removed during processing, and third-party testing verifies no residues remain in the finished product.

What does "standardised to 98%" mean?
98% of the extract by weight is pure 5-HTP — the highest common standardisation level, indicating a very pure, concentrated extract and reliable dosing.

Does where it comes from affect how it works?
The 5-HTP molecule is identical regardless of source. What varies is purity and concentration — which is why sourcing and third-party testing matter. See What Makes a High-Quality 5-HTP Supplement?

Considering 5-HTP?

Equil's 5-HTP is sourced from Griffonia simplicifolia, third-party tested, and free from unnecessary fillers. Visit our 5-HTP product page or read the Complete Guide to 5-HTP to learn more.

More questions? Browse the 5-HTP Learning Hub.