To produce and maintain optimum serotonin levels your body requires tryptophan.

L-tryptophan is an essential amino acid that promotes sleep, supports mood health, and encourages a healthy stress response. Serotonin is a hormone that cares for the connection between nerve cells. It is naturally found in the brain and digestive track and it positively impacts your mood and sleep.

Popular Products In Category

Explore some of our most popular vitamin and supplement products.
Preparing recommendations just for you...


Optimized Tryptophan Plus Optimized Tryptophan Plus

Enhanced support for healthy sleep, mood, response to stress, and ...

#01721 90 Vegetarian Capsules
GBP 28.03
L-Tryptophan L-Tryptophan

Supports healthy sleep, mood, stress response, and satiety

#01722 500 mg 90 Vegetarian Capsules
GBP 28.9