L-5 Hydroxytryptophan. Supports Normal Sleep Cycles. 5-HTP (l-5-Hydroxytryptophan) is an intermediate in the natural conversion of the essential amino acid tryptophan to serotonin. Clinical studies have shown that 5-HTP increases the amount and availability of serotonin produced by the body. Increased brain serotonin levels may produce positive effects of emotional well-being appetite regulation melatonin production and maintaining a healthy sleep cycle. Source Naturals 5-HTP is naturally derived from the seeds of the African plant Griffonia simplicifolia.
"I had a side effect of drowsiness. First i took one in empty stomach in the morning, and I was drowsy all day. Next, I took one at night before I go to sleep and I was still drowsy next day. So I took a half next night, but I was still drowsy next day. I stopped taking it now, but I want to try 1/4 a day before going to sleep to see what it will be like."