With some supplements, you have to read the fine print to find out it's mixed with secondary cheaper products to make it look like you are getting more...

This is just the pure product, and nothing else - no fillers or extras. 

No claim of therapeutic action or prophylactic action is implied, nor is it sold to treat any disease or illness or cause any physiological action. 

5-Hydroxytryptophan  is ‘Not suitable for children under 15 years of age or pregnant women: Should only be used under medical or dietetic supervision’. Consult your physician before use if taking other medication, or if suffering from acute severe illnesses or kidney damage, or if you have type II diabetes or a major depressive disorder.

As a single compound, ‘it is not intended as a sole source of nutrition and should be consumed in conjunction with a nutritious diet and in conjunction with an appropriate physical training or exercise program'.