Doctor’s Best L-Tryptophan delivers 500 mg of pure L-Tryptophan per veggie capsule — an essential amino acid that the body cannot synthesise on its own and must obtain through diet or supplementation.

Each capsule is made with a clean, minimal formula housed in a hypromellose (vegetarian) capsule shell, with no unnecessary fillers. The product is free from gluten and soy, and is suitable for both vegans and vegetarians. With 90 capsules per pack, a single pack provides a full 90-day supply at the recommended serving of one capsule per day.

Doctor’s Best is committed to transparency and science-based formulation. To support optimum absorption, L-Tryptophan is best taken separately from protein-containing foods or supplements, as other amino acids may compete for absorption. This straightforward, single-ingredient supplement is ideal for those seeking a focused and reliable source of L-Tryptophan.