L-Tryptophan Capsules (60c)

$52.20 or subscribe and save 10%


L-Tryptophan by Douglas Labs acts as a building block for serotonin, an important neurotransmitter involved in regulating mood, appetite and sleep cycles. The amino acid crosses the blood-brain barrier where it is converted into 5-Hydroxytryptophan and then into serotonin, supporting optimal levels of this feel-good chemical messenger. Using L-Tryptophan as a dietary supplement may help promote a sense of relaxation and wellbeing.

Purchase this product now and earn 52 Studio Reward Points!
Subscribe and get a discount monthly.


This amino acid supplement sparks joy in your brain. L-tryptophan crosses your blood-brain barrier and converts into serotonin, the feel-good neurotransmitter that helps regulate your mood, appetite and sleep cycles. By boosting serotonin levels, L-tryptophan may lift your spirits, curb cravings and even help you drift off peacefully at night. This Douglas Labs tryptophan is pure and potent, made from a premium amino acid blend. Take it before bed to promote restful sleep, in between meals to curb hunger pangs or anytime you want a little boost of serotonin to brighten your outlook. L-tryptophan supplements provide the raw materials your body needs to synthesize more of its own natural serotonin, so you can face each day with more energy, focus and zest for life.