NOW L-Tryptophan comes in vegetarian capsules, with each capsule providing 500mg of free-form L-Tryptophan. The pack contains 120 vcaps, and NOW’s nutritional information indicates a serving of two capsules delivers 1g of L-Tryptophan in total. L-Tryptophan is an essential amino acid, meaning the body cannot produce it independently — it must come from food or supplementation.
NOW Foods is a well-regarded American supplement brand with a long-standing reputation for quality manufacturing. Every batch of this L-Tryptophan is tested to confirm it is free from peak E and microbial contamination, reflecting the brand’s commitment to product integrity. Natural colour variation may occur between capsule batches.
These vcaps are free from gelatine, making them suitable for those following a vegetarian or vegan lifestyle. The unflavoured capsule format keeps things simple for anyone looking to add an amino acid supplement to their existing stack without any additional ingredients or flavourings.




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