Starter Kit
PREP Facial Cleanser
499 reviews
200mL
Cleanser
$39 - Subscription / $45 - One Time Purchase
PREP is a gentle daily facial cleanser that thoroughly removes impurities, light makeup, and s...
Select your plan
(Change, skip, or cancel anytime)
Deliver every
Try it risk-free! 45 day money back guarantee
Starter Kit
PREP Facial Cleanser
$39 - Subscription / $45 - One Time Purchase
499 reviews
200mL
Cleanser
PREP is a gentle daily facial cleanser that thoroughly removes impurities, light makeup, and s...
Select your plan
(Change, skip, or cancel anytime)
Deliver every
Try it risk-free! 45 day money back guarantee
THE BREAKTHROUGH SCIENCE
DESIGNED TO MAKE OS-01 WORK HARDER
Scientifically proven to enhance the penetration of the OS-01 peptide by up to 2x. 01
PROMOTES THE HYDRATING EFFECTS OF OS-01 FACE
Using PREP before OS-01 FACE was shown to increase a key biomarker associated with hyaluronic acid production, AQP3, in lab studies on human skin samples. 01
Using PREP before OS-01 FACE was shown to increase a key biomarker associated with hyaluronic acid production, AQP3, in lab studies on human skin samples. 01
GENTLY EXFOLIATES WITHOUT IRRITATION
Gentle enzymes help remove impurities without irritating the skin. This promotes the maintenance of healthy skin by ensuring effective cleansing takes place without compromising the skin's natural balance.
PROTECTS YOUR SKIN BARRIER & MICROBIOME
Free from detergents and harsh chemicals that are known to disrupt the beneficial lipids and microbes that help shield skin from environmental aggressors.
THE BREAKTHROUGH SCIENCE
DESIGNED TO MAKE OS-01 WORK HARDER
Scientifically proven to enhance the penetration of the OS-01 peptide by up to 2x. 01
PROMOTES THE HYDRATING EFFECTS OF OS-01 FACE
Using PREP before OS-01 FACE was shown to increase a key biomarker associated with hyaluronic acid production, AQP3, in lab studies on human skin samples. 01
Using PREP before OS-01 FACE was shown to increase a key biomarker associated with hyaluronic acid production, AQP3, in lab studies on human skin samples. 01
GENTLY EXFOLIATES WITHOUT IRRITATION
Gentle enzymes help remove impurities without irritating the skin. This promotes the maintenance of healthy skin by ensuring effective cleansing takes place without compromising the skin's natural balance.
PROTECTS YOUR SKIN BARRIER & MICROBIOME
Free from detergents and harsh chemicals that are known to disrupt the beneficial lipids and microbes that help shield skin from environmental aggressors.
The Details
HOW TO INTEGRATE INTO YOUR ROUTINE
STEP 1: PREPYou’ll get the best results from any product by starting with freshly cleaned skin, so make PREP gentle cleanser the first step in your routine.
STEP 2: (optional) tonerSTEP 3: OS-01 EYESTEP 4: OS-01 FACESTEP 5: (optional) treatments including serums, retinoids, hyaluronic acid, and red light therapySTEP 6: OS-01 SHIELDSTEP 7: (optional) make-up
HOW TO APPLY
- Lather 1-2 pumps of cleanser in damp hands until a light foam is formed
- Gently massage onto damp skin on the face and neck
- Rinse thoroughly and pat skin dry
- Follow with the remainder of your routine
- Use 2 times daily
Pro tip: Designed to gently remove dirt, oil, makeup, and sunscreen, PREP cleanser doubles the penetration 01 of OS-01 FACE when used together.
01 Shown in lab studies on human skin samples by analyzing relevant markers before and after treatment with PREP + OS-01 FACE vs OS-01 FACE alone
The Details
HOW TO INTEGRATE INTO YOUR ROUTINE
STEP 1: PREPYou’ll get the best results from any product by starting with freshly cleaned skin, so make PREP gentle cleanser the first step in your routine.
STEP 2: (optional) tonerSTEP 3: OS-01 EYESTEP 4: OS-01 FACESTEP 5: (optional) treatments including serums, retinoids, hyaluronic acid, and red light therapySTEP 6: OS-01 SHIELDSTEP 7: (optional) make-up
HOW TO APPLY
- Lather 1-2 pumps of cleanser in damp hands until a light foam is formed
- Gently massage onto damp skin on the face and neck
- Rinse thoroughly and pat skin dry
- Follow with the remainder of your routine
- Use 2 times daily
Pro tip: Designed to gently remove dirt, oil, makeup, and sunscreen, PREP cleanser doubles the penetration 01 of OS-01 FACE when used together.
01 Shown in lab studies on human skin samples by analyzing relevant markers before and after treatment with PREP + OS-01 FACE vs OS-01 FACE alone
I love the refill packaging for this amazing product. This cleans my sensitive skin and sets up the right environment for the next product. I love how this line has made my skin look so much brighter and younger.
Nancy D.
Verified Buyer
One Skin feels like science on your skin. The skin prep is by far my favorite face wash - I know I can trust the brand to truly follow the science and focus on cellular care and repair. Can't recommend enough, I have all my friends and family using One Skin and loving it!
Claire P.
Verified Buyer
This is hands down the best face wash for all ages of skin. I bought this for my daughter who is struggling with sensitive skin and hormonal acne (age 21) and found that I love it for myself (age 50). I keep an extra in the shower and my 19 year old son even uses it! Perfect for a clean purifying wash!
Amy C.
Verified Buyer
I love the refill packaging for this amazing product. This cleans my sensitive skin and sets up the right environment for the next product. I love how this line has made my skin look so much brighter and younger.
Nancy D.
Verified Buyer
One Skin feels like science on your skin. The skin prep is by far my favorite face wash - I know I can trust the brand to truly follow the science and focus on cellular care and repair. Can't recommend enough, I have all my friends and family using One Skin and loving it!
Claire P.
Verified Buyer
This is hands down the best face wash for all ages of skin. I bought this for my daughter who is struggling with sensitive skin and hormonal acne (age 21) and found that I love it for myself (age 50). I keep an extra in the shower and my 19 year old son even uses it! Perfect for a clean purifying wash!
Amy C.
Verified Buyer