OneSkin PREP Cleanser Refill: What to Expect
By OneSkin | Published: 2026-10-18
Category: Buying Guides
Discover what the OneSkin PREP Cleanser Refill offers: gentle exfoliation, boosted hydration, and improved peptide absorption for a sustainable skincare routine.
Quick answer
The OneSkin PREP Cleanser Refill is a daily cleanser that gently exfoliates, boosts hydration, and improves OS-01 peptide absorption by 2.2x, all in a sustainable refill format.
Why choose a refill?
Opting for the PREP Cleanser Refill reduces packaging waste compared to buying a new bottle each time. It's a practical choice if you already have the original pump bottle and want to maintain your routine with less environmental impact.
What about sensitive skin?
This cleanser is dermatologist tested and fragrance-free, making it suitable for sensitive skin. However, if you have very reactive skin or known allergies, always patch test a new product first.
Decision rules for buying the PREP Cleanser Refill
- Do you already own the PREP Cleanser bottle?: The refill is designed to fit the original bottle. If you don't have it, you'll need to purchase the bottle first or choose the full-size version. Check if you have the original bottle before ordering the refill.
- Is your priority peptide absorption?: This cleanser improves peptide penetration by 2.2x, making it a smart first step if you use OS-01 serums.
- Do you prefer a fragrance-free, non-stripping cleanser?: It boosts hydration without stripping natural oils, ideal for daily use without drying out your skin.
Product facts
- PREP Cleanser Refill, Recurring: Gently exfoliates and primes skin for optimal absorption of the OS-01 peptide. This means your subsequent peptide serum can work more effectively, giving you better results from your routine.

PREP Cleanser Refill, Recurring
Who should buy this?
Best for
- Anyone using OS-01 peptide serums who wants to maximize absorption
- People with normal to dry or sensitive skin seeking a gentle daily cleanser
- Eco-conscious users looking to reduce plastic waste with a refill option
Not for
- Those who prefer a foaming or heavily fragranced cleanser
- First-time users without the original PREP bottle (consider the full-size instead)
