How does OS-01 PREP specifically prepare my skin for the OS-01 FACE Topical Supplement?

OS-01 PREP gently removes build-up of dirt, dead skin cells and makeup/sunscreen ingredients without disrupting your natural lipid barrier so that OS-01 FACE can absorb more readily–ensuring you see maximum results from the OS-01 peptide.

How long will one bottle of OS-01 PREP last?

We estimate that the 200 ml bottle of OS-01 PREP will last approximately 1-2 months, when used as directed.

What is the shelf life of OS-01 PREP? How should it be stored?

OS-01 PREP has a shelf life of 24 months.

How should I integrate OS-01 PREP into my current skincare routine?

Use OS-01 PREP every evening to cleanse your skin, followed immediately by OS-01 FACE and OS-01 EYE. If you have oily skin and prefer to cleanse both morning and night, you can also use PREP to wash your face at the start of each day.

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Reviews

J**R

OneSkin has really helped my skin!

I bought the "travel" case to use as a starter set and it came with the face wash. I use it every day and never have any issues with it drying out my skin or causing breakouts. It has a very nice "light" scent and it is very thorough in cleaning my face. I also use it on my neck and chest. I will be a forever customer as long as I can afford it.

9.09.2025

L**I

My favorite face wash

It doesn’t matter what skin regimen I’m using…I reach for this facial cleanser every time. Cleans without stripping, leaves my skin feeling fresh and moisturized, and prepped for the next steps.

29.12.2024

C**

Love this cleanser

This cleanser is great for removing sunscreen and difficult to remove base.

15.03.2025

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.