Repaired Hair for Bleached, Colored or Chemically Treated Hair

Biotech-Powered Haircare: Unlocking Next-Level Expression

Our professional stylist-approved biotech breakthroughs deliver your healthiest hair, engineered for all hair types. Introducing the K18 Molecular Repair line, a biotech-powered brand breaking the rules on haircare.

Beloved by the PRO community and at-home users in over 100 countries, with 20+ billion Tik Tok views and 25+ prestigious awards, our growing lineup of intentional, science-backed haircare is all about unlocking next-level expression for all.

Reverse Hair Damage in 4 Minutes

K18 molecular repair is clinically proven to reverse damage from bleach, color, and chemical services in just 4 minutes. Our K18PEPTIDE-powered innovations were born in the biotech lab to radically simplify your routine and deliver your cleanest, healthiest hair.

Our Healthy Hair Routine

From the brand Science Backed Haircare, visit the store to explore our range of products:

15ml Hair Repair Mask for Damaged Hair 50ml Hair Repair Mask for Damaged Hair Molecular Hair Repair Oil PEPTIDE PREP pH Maintenance Shampoo PEPTIDE PREP Detox Shampoo

Backed by Clinical Studies

Clinical studies supporting our claims were conducted at the University of Minho in Portugal in January 2021. Our products are covered by World Patent No WO2015056216A2.

Customer Reviews

4.3 out of 5 stars (18,936 reviews) - 15ml Hair Repair Mask for Damaged Hair 4.3 out of 5 stars (18,936 reviews) - 50ml Hair Repair Mask for Damaged Hair 4.4 out of 5 stars (867 reviews) - Molecular Hair Repair Oil 4.5 out of 5 stars (902 reviews) - PEPTIDE PREP pH Maintenance Shampoo 4.6 out of 5 stars (978 reviews) - PEPTIDE PREP Detox Shampoo

Prices: 15ml Hair Repair Mask for Damaged Hair - $29.00 50ml Hair Repair Mask for Damaged Hair - $75.00 Molecular Hair Repair Oil - $65.00 PEPTIDE PREP pH Maintenance Shampoo - $36.00 PEPTIDE PREP Detox Shampoo - $38.00

All our products are: - Used by Professionals - For At-Home Use - Featuring Molecular Repair - Offering Heavy Duty Cleanse and Everyday Cleanse options

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