Epitalon

A synthetic tetrapeptide (Ala-Glu-Asp-Gly) studied by Russian gerontologist Vladimir Khavinson for telomerase activation and anti-aging. One small, non-blinded Russian study reported increased telomere length in elderly subjects via injection — this study has never been replicated by independent researchers. In-vitro data shows telomerase activation in cell cultures. Zero human RCTs for oral supplementation exist. As a tetrapeptide, oral bioavailability is uncharacterized and likely very low. Popular in longevity/biohacking communities.