Background:

5-Methoxytryptophol is a natural indole present in the pineal gland.

[1]. Satué M, et al. A new role for 5-methoxytryptophol on bone cells function in vitro. J Cell Biochem. 2015 Apr;116(4):551-8. [2]. Raynaud F, et al. Plasma concentrations of 5-methoxytryptamine, 5-methoxytryptophol and melatonin after 5-methoxytryptamine administration of golden hamsters: physiological implications. J Neural Transm Gen Sect. 1991;84(1-2):33-43.