Improve sleep quality, mood, and overall health with our L-Tryptophan 500mg! These 45 veggie caps offer a potent dose to significantly boost serotonin levels, encouraging restful sleep and promoting an uplifted mood. It's a key essential amino acid that the body doesn’t produce naturally, making supplementation necessary. Our product stands out as it is all-natural, vegan-friendly, free of GMOs and made to UK quality standards.