NEW RETINOL + HPR Ceramide Capsules Serum. After 1 capsule, the potent serum leaves skin looking radiant and revitalised. In 1 week, wrinkles and pores are visibly reduced, and skin feels firmer 1. Formulated with HPR (Hydroxypinacolone retinoate), a next generation retinol, ceramides, peptides and soothing botanicals.