Tryptophan

Buy L-tryptophan in bulk from a range of single-ingredient products in 500 mg and 1000 mg strengths. Formats are capsules, vegetable capsules and powder, with capsule packs from 45 to 180 and powders in 57g and 200g. Brands include NOW Foods, Swanson, Zein Pharma, Life Extension, Jarrow Formulas and OstroVit.

Health food shops, pharmacies, online retailers and distributors typically stock it as a single-ingredient line. Trade accounts only: EU VAT-registered businesses and companies outside the EU. Minimum order €250 excl. VAT; 5% discount over €500 excl. VAT. Tracked delivery in 2–8 days from the Czech Republic and Poland. Prices show when logged in.