Urine test to measure kryptopyrrole in urine

including:

1 Liter = CHF 900

100% natürliches L-Cystein in seiner reinen Form

a pigment in the cones of the retina that is responsible for vision in dim light

L-Tryptophan Pulver Urine test to measure kryptopyrrole40g tryptophan L tryptophan is an essential amino acid found in various foods and plays an important role in the body. Here are some of the potential effects of L tryptophan on the body: Serotonin production : L tryptophan is a precursor to serotonin, a neurotransmitter responsible for regulating mood, sleep, and emotional well being. Adequate intake of L tryptophan can increase serotonin production in the brain and help improve mood and reduce stress