To sum up, when people compare supplements or weigh NAD+ vs Glutathione benefits, how those molecules are delivered matters as much as the dose on the label
Human data: caution The only human data published to date are extremely limited: a 2024 pilot trial in 12 patients with interstitial cystitis treated with 10 mg of BPC-157 injected into the bladder wall, and a 2026 pharmacokinetic study in two healthy subjects (one 58-year-old man and one 68-year-old woman) receiving intravenous BPC-157
3.1.1.4 Grape seed proanthocyanidin extract (GSPE) GSPE, a natural bioactive compound from plant, exhibits great therapeutic properties through inhibiting oxidative stress and promoting mitochondrial biogenesis ( via AMPK-Sirtuin-1-PGC-1-TFAM signaling pathway ( 3.1.2 Sirtuin activators 3.1.2.1 Resveratrol Resveratrol, a natural compound extracted from the berries of Vaccinium species, can activate sirtuin-1, sirtuin-3, and sirtuin-5 (Xia et al., 2017
The benefits vary by target application, and each has distinct evidence behind it
Front Pharmacol 15:1405423
As we age, natural GH production declines, leading to various signs of aging such as decreased muscle mass, increased body fat, and reduced bone health