Pomegraniin A is implicitly suggested as an alternative activator of SOD2/SIRT3 to Urolithin, Resveratrol. All data is in vitro, but seems interesting nonetheless.
It would be interesting to know why Johan Auwerx went with Urolithin A and if he ever evaluated Pomegraiin A.
Zhao, et al. (2016)
SIRT3 activity of various polyphenols in Caco-2 cells in vitro.
SOD2 activity from Pomegraniin A is SIRT3 dependent.
Pomegraiin A shows a superior GSH/GSSG ratio in Caco-2 treated cells