I was asked recently about FOXO4 DRI, so here's my take. The early mou fox04 dri peptide TikTok FOXO4 DRI improves spermatogenesis in aged mice through reducing senescence associated secretory phenotype secretion from Leydig cells ScienceDirect The disordered p53 transactivation domain is the target of FOXO4 and the senolytic compound FOXO4 DRI Nature Communications The FOXO4 peptide in a DRI conformation (D amino acids in a retro reversed sequence), henceforth named FOXO4 DRI, competes with FOXO4 for p53 binding in a dose dependent manner and doing so with higher affinity.