From the Retinoid family, we chose Hydroxypinacolone Retinoate (HPR), a next-gen Retinoid ester that acts directly on skin receptors without conversion.
If Tretinoin is the warrior queen, powerful but punishing, HPR is the diplomat: potent, precise, and kind to the barrier.
Why HPR?
- Potent yet gentle - delivers visible results without redness, peeling, or long purges
- Direct-acting - binds directly to retinoid receptors, for faster and more consistent benefits
- Stable - less fragile than retinol, so it stays effective longer
- Clinically proven - smoother texture, fewer lines, improved elasticity, and even tone
To raise the bar further, without adding harshness, we turned to Bakuchiol. Often called a phyto-retinol, Bakuchiol is not chemically a Retinoid, but research shows it can encourage similar cellular regeneration at the right concentration. It’s also anti-inflammatory, which made it an ideal complement to HPR.
Together, HPR + Bakuchiol form the dual-retinoid foundation of Own Time Bi-Retinoid Serum - blending power and tolerance in a single step.
Because this pairing represented a unique approach, two actives with distinct but synergistic mechanisms we wanted data, not assumptions. So, we tested the full formula on real people through an independent, in-vivo clinical study. Conducted over eight weeks under dermatologist supervision, the study showed statistically significant improvements in radiance, texture, and fine lines with many participants observing visible changes to the naked eye in as little as four weeks. The imaging and instrumental data confirmed what the mirror already revealed - smoother, brighter, healthier-looking skin.
