OneSkin PREP
Gently exfoliates without irritation - Scientifically proven to enhance the penetration of the OS-01 peptide by up to 2x (01) - Supports natural balance of skin barrier and microbiome - 01: Shown by comparing the amount of the OS-01 peptide present in the dermis layer of ex vivo human skin samples exposed to OS-01 FACE and precleansed with PREP versus not pre-cleansed at all
Using PREP before OS-01 FACE enhances its hydration factor. 01 01 Shown by comparing the activity of a key biomarker associated with skin hydration (AQP3) before and after treatment of ex vivo human skin samples exposed to OS-01 FACE and pre-cleansed with PREP versus not pre-cleansed at all
Brand partner - skin safe - trusted choice - designed to benefit all skin types
Your Skin Longevity Routine ∞ 8 ONE SKIN PREP PREP EYE FACE SHIELD WHEN TO APPLY Apply 1-2 times daily. Cleansing nightly is recommended for most skin types to remove dirt, oil, makeup, and SPF. HOW TO APPLY Lather 1-2 pumps in damp hands to form a lightfoam. Then, gently massage onto damp skin. Rinse thoroughly and pat dry. WHERE TO APPLY Face and neck
KEEP Reusable Shell ONE SKIN PREP ONE SKIN PREP DISCARD (AFTER USE) Refill Pouch
ONE SKIN "Love this stuff. I have extremely sensitive skin, prone to redness and dryness. I use this cleanser twice a day, no problem, and visibly notice that OS-01 FACE works better when I do." Ellen B. Customer | PREP Facial Cleanser 200 mL / 6.76 Moz PREP ONE SKIN PREP
  • OneSkin PREP
  • Gently exfoliates without irritation - Scientifically proven to enhance the penetration of the OS-01 peptide by up to 2x (01) - Supports natural balance of skin barrier and microbiome - 01: Shown by comparing the amount of the OS-01 peptide present in the dermis layer of ex vivo human skin samples exposed to OS-01 FACE and precleansed with PREP versus not pre-cleansed at all
  • Using PREP before OS-01 FACE enhances its hydration factor. 01 01 Shown by comparing the activity of a key biomarker associated with skin hydration (AQP3) before and after treatment of ex vivo human skin samples exposed to OS-01 FACE and pre-cleansed with PREP versus not pre-cleansed at all
  • Brand partner - skin safe - trusted choice - designed to benefit all skin types
  • Your Skin Longevity Routine ∞ 8 ONE SKIN PREP PREP EYE FACE SHIELD WHEN TO APPLY Apply 1-2 times daily. Cleansing nightly is recommended for most skin types to remove dirt, oil, makeup, and SPF. HOW TO APPLY Lather 1-2 pumps in damp hands to form a lightfoam. Then, gently massage onto damp skin. Rinse thoroughly and pat dry. WHERE TO APPLY Face and neck
  • KEEP Reusable Shell ONE SKIN PREP ONE SKIN PREP DISCARD (AFTER USE) Refill Pouch
  • ONE SKIN "Love this stuff. I have extremely sensitive skin, prone to redness and dryness. I use this cleanser twice a day, no problem, and visibly notice that OS-01 FACE works better when I do." Ellen B. Customer | PREP Facial Cleanser 200 mL / 6.76 Moz PREP ONE SKIN PREP

Starter Kit

PREP Facial Cleanser

489 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


OneSkin PREP
Gently exfoliates without irritation - Scientifically proven to enhance the penetration of the OS-01 peptide by up to 2x (01) - Supports natural balance of skin barrier and microbiome - 01: Shown by comparing the amount of the OS-01 peptide present in the dermis layer of ex vivo human skin samples exposed to OS-01 FACE and precleansed with PREP versus not pre-cleansed at all
Using PREP before OS-01 FACE enhances its hydration factor. 01 01 Shown by comparing the activity of a key biomarker associated with skin hydration (AQP3) before and after treatment of ex vivo human skin samples exposed to OS-01 FACE and pre-cleansed with PREP versus not pre-cleansed at all
Brand partner - skin safe - trusted choice - designed to benefit all skin types
Your Skin Longevity Routine ∞ 8 ONE SKIN PREP PREP EYE FACE SHIELD WHEN TO APPLY Apply 1-2 times daily. Cleansing nightly is recommended for most skin types to remove dirt, oil, makeup, and SPF. HOW TO APPLY Lather 1-2 pumps in damp hands to form a lightfoam. Then, gently massage onto damp skin. Rinse thoroughly and pat dry. WHERE TO APPLY Face and neck
KEEP Reusable Shell ONE SKIN PREP ONE SKIN PREP DISCARD (AFTER USE) Refill Pouch
ONE SKIN "Love this stuff. I have extremely sensitive skin, prone to redness and dryness. I use this cleanser twice a day, no problem, and visibly notice that OS-01 FACE works better when I do." Ellen B. Customer | PREP Facial Cleanser 200 mL / 6.76 Moz PREP ONE SKIN PREP
  • OneSkin PREP
  • Gently exfoliates without irritation - Scientifically proven to enhance the penetration of the OS-01 peptide by up to 2x (01) - Supports natural balance of skin barrier and microbiome - 01: Shown by comparing the amount of the OS-01 peptide present in the dermis layer of ex vivo human skin samples exposed to OS-01 FACE and precleansed with PREP versus not pre-cleansed at all
  • Using PREP before OS-01 FACE enhances its hydration factor. 01 01 Shown by comparing the activity of a key biomarker associated with skin hydration (AQP3) before and after treatment of ex vivo human skin samples exposed to OS-01 FACE and pre-cleansed with PREP versus not pre-cleansed at all
  • Brand partner - skin safe - trusted choice - designed to benefit all skin types
  • Your Skin Longevity Routine ∞ 8 ONE SKIN PREP PREP EYE FACE SHIELD WHEN TO APPLY Apply 1-2 times daily. Cleansing nightly is recommended for most skin types to remove dirt, oil, makeup, and SPF. HOW TO APPLY Lather 1-2 pumps in damp hands to form a lightfoam. Then, gently massage onto damp skin. Rinse thoroughly and pat dry. WHERE TO APPLY Face and neck
  • KEEP Reusable Shell ONE SKIN PREP ONE SKIN PREP DISCARD (AFTER USE) Refill Pouch
  • ONE SKIN "Love this stuff. I have extremely sensitive skin, prone to redness and dryness. I use this cleanser twice a day, no problem, and visibly notice that OS-01 FACE works better when I do." Ellen B. Customer | PREP Facial Cleanser 200 mL / 6.76 Moz PREP ONE SKIN PREP

Starter Kit

PREP Facial Cleanser

$39 - Subscription / $45 - One Time Purchase

489 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
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
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

Incorporate PREP gentle gel cleanser into skin care routine by lathering 1-2 pumps of cleanser in damp hands until a light foam is formed. Then, using circular movements, gently massage onto damp skin. Rinse thoroughly and pat dry any wet skin. For best results, follow with OS-01 FACE.
  • Where: Face and neck
  • When: 1-2 times daily, depending on your skin type. Cleansing nightly is recommended for most skin types to remove dirt, oil, makeup, and SPF.

Pro tip: Since your skin is still clean from the night before, skipping a morning cleanse will prevent potential dryness and your skin will be ready to absorb and maintain moisture from OS-01 FACE in the morning.



The Details

Incorporate PREP gentle gel cleanser into skin care routine by lathering 1-2 pumps of cleanser in damp hands until a light foam is formed. Then, using circular movements, gently massage onto damp skin. Rinse thoroughly and pat dry any wet skin. For best results, follow with OS-01 FACE.
  • Where: Face and neck
  • When: 1-2 times daily, depending on your skin type. Cleansing nightly is recommended for most skin types to remove dirt, oil, makeup, and SPF.

Pro tip: Since your skin is still clean from the night before, skipping a morning cleanse will prevent potential dryness and your skin will be ready to absorb and maintain moisture from OS-01 FACE in the morning.