K18
HAO Editorial PickThe bond repair standard for stylists working with heavily bleached or permed Asian hair.
About K18
Asian hair that's been bleached or permed loses structural integrity quickly. K18's patented peptide technology reconnects broken keratin chains at the molecular level — something conditioning treatments can't do. Asian stylists overseas consistently reach for K18 as a treatment add-on after lightening services.
Why Asian Stylists Reach for K18
- ✓Bleached Asian hair
- ✓Chemically permed hair
- ✓Repeated color-treated hair
- ✓Hair feeling mushy or over-processed
Avoid If
- —You have virgin, healthy hair and don't need repair
- —You're looking for a daily moisturizing conditioner — this is a treatment, not a rinse-off
Recommended Products From This Brand
Peptide Prep Detox Shampoo
Color-safe peptide detox shampoo with activated charcoal and salicylic acid; removes buildup, oils and metals.
Premium tier for the bleached-hair customer; prep step before K18 mask.
Bleached/color-treated hair with metal + product buildup
Molecular Repair Mist
K18 Molecular Repair Mist selected for Asian hair needs abroad.
Fine, color-treated Asian hair needs ongoing repair but goes limp under rich leave-ins; a water-light peptide mist keeps damaged strands softer and easier to detangle every day without weighing straight hair down at the root.
Fine-to-medium, color-treated Asian hair wanting light daily repair and easy detangling.
Damage Shield pH Protective Shampoo
K18 Damage Shield pH Protective Shampoo selected for Asian hair needs abroad.
Color-treated Asian hair fades and roughens during washing; a low-pH protective shampoo keeps the cuticle flat to hold tone and smoothness, which an ordinary shampoo does not safeguard.
Bleached or color-treated Asian hair wanting daily washing that protects tone and smoothness.
AirWash Dry Shampoo
K18 AirWash Dry Shampoo selected for Asian hair needs abroad.
Fine, straight Asian hair goes flat and oily fast and shows white dry-shampoo residue; a clear, oil-absorbing refresh adds root lift between washes without the chalky cast on dark hair.
Fine, flat, or quickly-oily Asian hair needing a between-wash refresh and lift.
Molecular Repair Hair Oil
K18 Molecular Repair Hair Oil selected for Asian hair needs abroad.
Straight Asian hair needs shine and frizz control but drowns under heavy oils; a weightless peptide oil polishes the ends and holds a smooth finish without the flat, greasy root that sinks fine-to-medium Asian hair.
Straight or wavy Asian hair wanting a lightweight, glassy finish and frizz control at the ends.
Biomimetic Hairscience Mini Repair Mask
K18 Biomimetic Hairscience Mini Repair Mask selected for Asian hair needs abroad.
Getting Asian hair light causes deep structural damage; a leave-in molecular repair mask rebuilds strength inside the strand, addressing the brittle, fried feel that a surface conditioner only masks.
Bleached, color-treated, or badly heat-damaged Asian hair needing structural repair.
Damage Shield Protective Conditioner
K18 Damage Shield Protective Conditioner selected for Asian hair needs abroad.
Color-treated Asian hair tangles and wears at the ends; a protective conditioner adds slip and guards the cuticle for gentler detangling, without the weight that flattens dense hair.
Bleached, color-treated, or damaged Asian hair wanting daily softness and protection.
K18 Leave-In Molecular Repair Hair Mask
A leave-in bond repair mask that rebuilds disulfide bonds broken by Korean perms, Japanese straightening, and bleach — a daily-driver fix for over-processed Asian hair.
Bleaching Asian hair to cool tones leaves it gummy and snapping; a leave-in peptide treatment rebuilds strength inside the strand instead of coating the damage — if the four-minute rule is followed.
Bleached, over-processed, or chemically straightened Asian hair needing real repair.
Some links are affiliate links. HAO Hair Days earns a small commission at no cost to you.
Where To Buy K18
K18 products may be available through the following retailers. Links and availability vary by region.
Some links may be affiliate links in the future. HAO Hair Days earns a small commission at no cost to you. Always verify product authenticity when purchasing from third-party retailers.
Not sure if K18 is right for your hair?
Create your My Hair Brief™ and get personalized product and stylist recommendations.
Get My Hair Brief™Frequently Asked Questions
Are you part of this brand?
Want to update this page or work with HAO Hair Days?
We welcome brands that serve the Asian hair community. Reach out to update product information or explore partnership opportunities.