Advanced Hair Repair
K18
K18 is revolutionizing haircare with biotech innovation, delivering true repair at the molecular level. Unlike traditional treatments that mask damage, K18 restores hair from within, bringing it back to its strongest, healthiest state.
SHOP ALL K18
How to Use K18 for Healthier, Stronger Hair
Treatment Routine: 1x weekly
Use for first 2-6 washes based on hair damage level, then weekly or as needed afterwards.
Clarify buildup + metals for clean hair that's ready for repair. Skip conditioner.
Use the K18 Peptide Prep Detox Clarifying Shampoo once a week to remove buildup and reset your hair.
Reverse damage for strong, soft hair.
Apply K18 Leave-In Molecular Repair Hair Mask on towel-dried hair. Wait 4 minutes—do not rinse.
Strengthen + fight frizz for smooth, shiny hair.
Apply 1-3 drops of the K18 Molecular Repair Hair Oil to damp or dry hair. Focus on mid-lengths to ends for frizz control and heat protection.
Maintenance Routine: For all other washes
Color-safe daily cleanse to keep hair + scalp healthy.
For daily washing, use K18 Damage Shield pH Protective Shampoo to gently cleanse while maintaining hair health.
Weightlessly soften, detangle + protect from daily damage.
Follow with K18 Damage Shield pH Protective Conditioner for weightless moisture and daily damage defense.
Refresh Routine: Between washes
Eliminate oil + absorb odor for a clean, fresh feeling.
Use K18 AirWash Dry Shampoo between washes to cleanse and revive hair without buildup.
Control frizz + add shine for smooth, healthy hair.
Apply 1-3 drops of the K18 Molecular Repair Hair Oil to damp or dry hair. Focus on mid-lengths to ends for frizz control and heat protection.
Get touchable, natural bounce for up to 2 days.
Use K18 Astrolift Reparative Volume Spray on damp hair before blow-drying or styling for lift, strength, and heat protection.
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Hair Tutorial
K18 Leave-In Mask
In this video, we take you through a step-by-step tutorial on how to apply the revolutionary K18 Leave-In Molecular Repair Leave-In Hair Mask. We share detailed steps and helpful tips, from the amount of product used based on your hair type, how often the K18 Mask should be used, and more.
Experience this damage-reversing hair mask that can deliver results in just 4 minutes!
Routine
K18 Mask Saved My Damaged Hair
Overbleached hair starting to feel like walis?
She shares how she revived her strands with the cult-favorite K18 Molecular Repair Mask, a leave-in treatment that helps restore strength, softness, and smoothness from within.
Bring Back the Bounce of Your Curls!
K18 Leave-In Mask
This is what we call a miracle mask.
Bring back the bounce in your curls in just 4 minutes with the K18 Leave-In Hair Mask! Formulated with patented technology, it can revive damaged curls from within to give you stronger, healthier hair.
24-Hour Anti-Frizz Results
K18 Molecular Repair Hair Oil
Curious about the K18 Molecular Repair Hair Oil and its 24-hour anti-frizz capabilities? Watch as we put this innovative hair oil to the test! See the transformation and results after just one application.
Frequently Asked Questions
Unlike traditional hair masks that only coat the surface with temporary moisture, K18 works deeper. Its patented K18PEPTIDE™ travels to the innermost layers of the hair to physically reconnect the keratin chains and disulfide bonds broken by bleach, color, chemical straightening, and heavy heat styling. This provides true structural repair—restoring your hair's core strength, bounce, and softness in just 4 minutes.
It is strictly a leave-in treatment. If you rinse it out, you wash the repairing peptide down the drain before it has time to work. Simply apply it to clean, towel-dried hair, wait a full 4 minutes for the repair process to happen, and then proceed to blow-dry or style your hair as usual right over the mask. Do not rinse!
Yes, absolutely! K18 is specifically engineered to reverse extreme damage caused by bleaching, coloring, rebonding, relaxers, perms, and daily heat styling. Because it repairs hair at the molecular level, it fundamentally restores chemically compromised hair to a healthy, resilient state. The formula is also color-safe, sulfate-free, paraben-free, vegan, and cruelty-free.
How to apply in 5 steps:
- Shampoo only: Wash your hair, but skip the conditioner entirely (conditioner blocks the peptide from entering the hair).
- Towel-dry: Gently squeeze out water until hair is damp, not dripping.
- Emulsify & Apply: Start with just 1 pump (it is highly concentrated!). Rub it between your palms until it turns into a thick white paste, then apply evenly from your ends up to the roots. Add a little more only if you have long or thick hair.
- Wait 4 minutes: Set a timer. Let the peptide work.
- Style: After 4 minutes, do not rinse. You can now apply your usual leave-in conditioners, heat protectants, or styling products right on top.
How often to use it:
For maximum repair, use the K18 mask consecutively for your first 4 to 6 washes (the reset phase). Once your hair’s strength is restored, drop to a maintenance routine of every 3 to 4 washes.