Reviewed against editorial standards · Updated 2026-01-29

OS-01: Benefits & Research

Part of the OS-01 Complete Guide

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Senescent Cell Clearance

OS-01 reduces senescence markers (p16INK4a, p21, SA-β-gal) in human skin equivalents. By clearing senescent "zombie cells," it reduces the senescence-associated secretory phenotype (SASP) — the cocktail of inflammatory factors that degrades collagen and accelerates aging in neighboring cells.

Epigenetic Age Reversal

OneSkin's published research reports OS-01 reduced the biological (epigenetic) age of skin samples as measured by DNA methylation clocks. The Horvath skin-blood clock showed reduced biological age in OS-01-treated samples compared to controls — a novel endpoint for skincare research.

Skin Barrier Function

Studies demonstrate improved skin barrier function and hydration in OS-01-treated human skin models. Healthier barrier function reduces transepidermal water loss and improves skin resilience against environmental stressors.

FAQ

Frequently Asked Questions

References

  1. [1] Zonari A, et al.. Senotherapeutic peptide treatment reduces biological age and senescence in human skin models. npj Aging, 2023.

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Austin Danner

Founder & Editor in Chief

Founder of Peptides Insider. Independent researcher focused on translating peer-reviewed peptide research into practical, evidence-based guides.

Reviewed against Peptides Insider editorial standards · Last reviewed 2026-01-29.