Biotin vs Biopterin - What's the difference?
biotin | biopterin |
(vitamin) A sulfur-containing member of the vitamin B complex found in liver, egg yolk, milk and yeast, essential to the activity of multiple enzyme systems.
A coenzyme produced within the body, an oxidized degradation product of tetrahydrobiopterin. Defects in biopterin synthesis or regeneration can cause a form of hyperphenylalaninemia, and biopterin deficiency has been associated with dystonia and rabies.