leave-in molecular repair hair mask
Estimated for this option and quantity. Sign in to earn at your tier. Final points follow the paid total after discounts; shipping and taxes do not earn points.
What it is: A leave-in treatment mask for all hair types that clinically reverses damage in four minutes. The patented peptide technology works to repair damage from bleach, color, chemical services, and heat, restoring strength, softness, smoothness,...
Authentic beauty · Shop with confidence
Need help with a shade or size? Ask SOFIEDelivery & returns
See our shipping policy for delivery times and availability.
Shipping policyReturn & refund policyTHE SOFIE GUIDE
How to use
Product videos and demonstrations.
Watch & learn
See how to apply and use leave-in molecular repair hair mask in tutorials from K18 Biomimetic Hairscience and beauty creators.
Watch tutorials on YouTube ↗About this product
What it is: A leave-in treatment mask for all hair types that clinically reverses damage in four minutes. The patented peptide technology works to repair damage from bleach, color, chemical services, and heat, restoring strength, softness, smoothness, and bounce to hair.
Hair Type: Fine, Medium, and Thick
Hair Texture: Straight, Wavy, Curly, and Coily
Hair Concerns:
- Damage/Split Ends/Breakage
- Color Safe
- Straightening/Smoothing
Key Benefits:
- Restores strength, softness, smoothness, and bounce
- Repairs damaged hair
- Easy leave-in formula delivers lasting results
Highlighted Ingredients:
- K18Peptide™: Repairs damage from bleach, color, chemical services, and heat.
Ingredient Callouts: This product is vegan, cruelty-free, and comes in recyclable packaging.
What Else You Need to Know: This mask is powered by the patented K18Peptide, which is just the right size and molecular structure to reach the innermost layers of hair and re-connect broken keratin chains responsible for hair's strength and elasticity.
Fragrance Description: The light floral scent features notes of jasmine and peony.
Clinical Results: In a clinical study on hair that was bleached 8 times, after 2 uses:
- Biotech-powered K18Peptide restored damaged hair by up to 82%
Clean at Sephora
Clean at Sephora is a curation of brands committed to evolving the beauty industry. When you see our Clean seal, you can be sure this brand's products are formulated without certain ingredients that are potentially harmful to human health and the environment and also address ingredients clients are concerned about, including phthalates, formaldehyde or formaldehyde releasers, oxybenzone and octinoxate, hydroquinone, triclosan, coal tar, methylisothiazolinone and methylchloroisothiazolinone, insoluble plastic microbeads, and more. For the full list, check out the Ingredients tab.
This product is an Allure Best of Beauty award winner.
How to Use
In the shower:
-Shampoo, don‘t condition.
Once out of the shower:
-Using a towel gently dry hair until damp.
-Begin with one mL/one dime-size amount of K18 Mask.
-Only add more as needed. Average use is two mL/two dime-size amounts (this is a highly concentrated formula, so you‘ll need much less than traditional masks).
-Work evenly into hair from ends to roots.
-Let sit for four minutes to activate.
-Don‘t rinse out.
-Style as usual after the four minutes is up (fine to add heat protectant or styling product now).
-Use for the first four to six washes, then swap to maintenance mode and use as needed.
VERIFIED SOFIE CUSTOMERS
Customer reviews
No SOFIE customer reviews for this product yet. Reviews from verified SOFIE customers will appear here.
THE SOFIE ROUTINE
Complete your routine
Chosen to work with this product: by category, brand and what is in stock today.
MORE TO DISCOVER