What is 5 htp 5 htp is a compound made from the naturally occurring amino acid tryptophan and precursor to the neurotransmitter serotonin why use 5 htp each capsule provides 50mg of 5 htp sourced naturally from griffonia seed who can benefit these premium quality capsules offer a fantastic way for anyone seeking to naturally boost their 5 htp levels to be taken as part of a varied and balanced diet and a healthy lifestyle