5β-Dihydrocortisol-d 6 is the deuterium labeled 5β-Dihydrocortisol. 5β-Dihydrocortisol, a metabolite of Cortisol, is a potential mineralocorticoid. 5β-Dihydrocortisol can potentiate glucocorticoid activity in raising the intraocular pressure. 5β-Dihydrocortisol causes breast cancer cell apoptosis.