Early-phase human trials are small, well-controlled studies centered on safety, reproductive hormones, and surrogate markers such as ovarian reserve tests and sperm parameters ahead of any efficacy trials
In summary, human trials performed before 2013 have shown that over-the-counter oral glutathione supplementation has a negligible effect on raising plasma levels in humans
doi:10.1111/j.1365-2982.2007.01079.x Schirra J, Nicolaus M, Woerle HJ, Struckmeier C, Katschinski M, Gke B
This makes the combination cleaner than older pairings like CJC-1295 with GHRP-6 or GHRP-2, which could cause hunger spikes and cortisol elevation
Span 60 was obtained from Sigma-Aldrich Co
Last medically reviewed: 2026-04-27 by GLP3 Planner editorial