Give Back Health 5HTP is a pharmaceutical-grade 5-HTP powder for extemporaneous compounding use. 5-HTP is a vital precursor to serotonin, a neurotransmitter known to regulate emotion and mood. Emerging research shows that taking 5-HTP may help support healthy mood, anxiety, and sleep when protein intake is low. This product is free from a range of allergens, making it suitable for vegans, and comes in a 25g oral powder.