K18 PEPTIDE Hair Repair Leave-In Masque

A restorative, leave-in hair treatment clinically proven to repair damage from bleach, color, chemical services, heat, and styling—at the molecular level. The K18 Peptide Masque strengthens, softens, and improves elasticity while detangling and smoothing hair, without weighing it down.

This breakthrough formula works inside the hair fiber to restore strength and resilience, helping hair feel softer, healthier, and more manageable with continued use.

Product

50 mL (1.7 fl oz) Full Size 15 mL (0.5 fl oz) Travel Size

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K18 PEPTIDE Hair Repair Leave-In Masque

$78.00

K18 PEPTIDE™ was developed by decoding the DNA sequence of human hair keratin—the blueprint your body uses to build hair. This patented peptide penetrates deep into the hair’s inner core to reconnect broken disulfide bonds, which are damaged by chemical and thermal stress.
By repairing these bonds, K18 helps restore hair to near-virgin strength and integrity.

- Repairs damage from color, bleach, chemical services, heat, and styling
- Strengthens hair and improves elasticity
- Softens, smooths, and detangles without residue
- Helps restore bounce, body, and manageability
- Results improve with continued use

Our story

This is Hair Health Defined

Dr. Bauman has distilled nearly 30 years of clinical expertise into this formula, bridging the gap between medical precision and your daily ritual. Treat your hair to science-backed ingredients designed to strengthen from the root.

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Elevate your hair health routine with our top picks.

K18 PEPTIDE Hair Repair Leave-In Masque

K18 PEPTIDE Hair Repair Leave-In Masque

This is Hair Health Defined