K18 Leave-In Mask
K18 Leave-In Mask
K18 Leave-In molecular repair hair mask is your 4-minute leave-in treatment to reverse hair damage.
A leave-in treatment mask that works on the molecular level to reverse hair damage in just 4 minutes. The K18PEPTIDE™ air damage from bleach + colour, chemical services and heat – with immediate and lasting results to restore strength, softness, smoothness and bounce to hair.
Perfect for
- Bleached and coloured hair
- Heat damaged hair
- Other Chemical services that have left your hair lack lustre
- People short on time who want the benefits of a mask but don't want to spend extra time in the shower
How does it work?
- Travelling into the innermost layers of hair, our K18PEPTIDE™ renews strength along the width AND length of hair for lasting strength where it matters.
- K18PEPTIDE™ is a biotech-developed peptide that mimics hair's structure to reverse damage by reconnecting polypeptide chains and disulfide bonds broken during bleaching, colour and chemical services + heat*.
- pH-optimized (5.0-6.0) to help minimize cuticle swelling + put hair proteins in their most resilient state
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Cream format enables easy, lightweight application across all hair types, with detangling and softening benefits
Key Benefits
- Takes damage repair further – reconnects both polypeptide chains (and as a result, also reconnects disulfide bonds) for strength along the length + width of the hair - offering comprehensive, lasting damage repair
- Restores hair from even extreme damage - by working at the innermost layer of the hair, core strength and elasticity are renewed for strong, smooth, bouncy hair
- Delivers immediate and lasting results – hair is repaired from the first use and lasts past your next wash, for ongoing reparative benefits
- Simplified repair - convenient, leave-in formula works in just 4 minutes, with no extra rinse required
- Works on all hair types – because K18PEPTIDE™ works on a molecular level (where all hair is the same), this product is effective on all hair types
Free shipping for all orders over $50.
$10 shipping for orders $50 and under.
At Sable Boutique, we understand the importance of using genuine, high-quality beauty products. That’s why we’re proud to be an authorised retailer for every brand we carry. When you shop with us, you can trust that your products are fresh, authentic, and sourced directly from the brands and their official representatives.
Unfortunately, counterfeit and expired beauty products are a growing concern online. Purchasing from unauthorised sellers can put you at risk of receiving ineffective — or even unsafe — items.
Here’s why Sable Boutique is your trusted destination for professional hair and beauty essentials:
- Guaranteed Authenticity: We source exclusively from official brand distributors, ensuring every product you receive is 100% genuine.
- Fresh Inventory: Our regular shipments mean you’re getting the latest formulations with optimal shelf life.
- Safe & Effective: Authentic products deliver real results — without the risks associated with counterfeit or expired cosmetics.
Shop with confidence knowing that every purchase from Sable Boutique supports your hair and skin with trusted, salon-grade quality — straight from the source.
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