K18

Repair and Strengthen Damaged Hair with K18 Biotech Care

Support stronger, healthier-looking hair with advanced molecular repair technology designed to reverse damage from bleach, heat, and chemical treatments.

Quick filters

Filter 8 products
K18 Leave-in Molecular Repair Hair MaskK18 Leave-in Molecular Repair Hair Mask
K18 Leave-in Molecular Repair Hair Mask

From £12.00
View Product
K18 Damage Shield pH Protective Shampoo 250mlK18 Damage Shield pH Protective Shampoo 250ml
K18 Damage Shield pH Protective Shampoo 250ml

£39.00
K18 Airwash 118mlK18 Airwash 118ml
K18 Airwash 118ml

£48.00
K18 Damage Shield pH Protective Conditioner 250ml
K18 Damage Shield pH Protective Conditioner 250ml

£39.00

Unsure Of Your Haircare Routine?

Take Our Real Time Haircare Test To Find The Perfect Products For You!

Take The Test!
K18 Molecular Repair Hair Oil 30mlK18 Molecular Repair Hair Oil 30ml
K18 Molecular Repair Hair Oil 30ml

£65.00
K18 Molecular Repair Hair Oil 10mlK18 Molecular Repair Hair Oil 10ml
K18 Molecular Repair Hair Oil 10ml

£27.00
K18 Astrolift 118mlK18 Astrolift 118ml
K18 Astrolift 118ml

£44.00
Sold out
K18 PEPTIDE PREP Pro Chelating Hair Complex 300ml (Worth £120)
K18 PEPTIDE PREP Pro Chelating Hair Complex 300ml (Worth £120)

£60.00 £120.00 50% offsaving
K18 leave-in molecular repair hair mask for damaged and bleached hair

About K18

Discover Biotech Innovation for Damaged Hair Repair

K18 redefines hair repair with cutting-edge biotechnology designed to restore strength from within. Unlike traditional treatments, this leave-in formula works at a molecular level to reconnect broken keratin chains caused by chemical treatments, heat, and environmental stress. The result is hair that feels smoother, stronger, and visibly healthier over time.

Find Your Perfect K18 Haircare Routine

Ideal for bleached, coloured, or weakened hair, K18 simplifies your routine without compromising results. The lightweight leave-in mask replaces conditioner, delivering targeted repair while maintaining softness and manageability. Whether your hair is fragile or prone to breakage, K18 supports long-term resilience and improved texture.

Personalised Advice on K18 Haircare

Understanding your hair’s needs is key to achieving the best results. If you’re unsure where to begin, you can contact our team for expert support, read our latest haircare advice and guides, or take our free online skin test for personalised recommendations tailored to your routine.

Expert Tip for K18 Haircare

"Apply K18 to freshly washed, towel-dried hair and allow the full four minutes before styling to let the technology activate properly. This ensures the peptide can penetrate deeply and begin repairing the internal structure of the hair. Avoid layering too many products immediately after, as this can interfere with performance. With consistent use, hair will feel noticeably stronger, smoother, and more resilient."

– Kimberley, Clinic & Customer Experience Manager

TAKE THE FREE SKIN TEST

Unlock Advanced Repair for Weakened and Overprocessed Hair

Powered by biotech innovation, K18 treatments work deep within the hair structure to restore strength, improve elasticity, and enhance overall hair condition.
K18 Airwash 118mlK18 Airwash 118ml
K18 Airwash 118ml

£48.00
K18 Astrolift 118mlK18 Astrolift 118ml
K18 Astrolift 118ml

£44.00
K18 Damage Shield pH Protective Conditioner 250ml
K18 Damage Shield pH Protective Conditioner 250ml

£39.00
K18 Damage Shield pH Protective Shampoo 250mlK18 Damage Shield pH Protective Shampoo 250ml
K18 Damage Shield pH Protective Shampoo 250ml

£39.00
K18 Leave-in Molecular Repair Hair MaskK18 Leave-in Molecular Repair Hair Mask
K18 Leave-in Molecular Repair Hair Mask

From £12.00
View Product
K18 Molecular Repair Hair Oil 10mlK18 Molecular Repair Hair Oil 10ml
K18 Molecular Repair Hair Oil 10ml

£27.00
K18 Molecular Repair Hair Oil 30mlK18 Molecular Repair Hair Oil 30ml
K18 Molecular Repair Hair Oil 30ml

£65.00

Frequently Asked Questions

Is K18 suitable for all hair types?

K18 is suitable for all hair types, particularly those experiencing damage from colouring, bleaching, or heat styling.

What makes K18 different from traditional hair treatments?

K18 uses patented peptide technology to repair hair at a molecular level, rather than simply coating the hair like traditional conditioners.

How do I use the K18 hair mask?

Apply to towel-dried hair after shampooing, leave it in for four minutes, and do not rinse out before styling.

Can K18 replace conditioner?

Yes, K18 is designed to replace conditioner during use, delivering repair without the need for additional products.

How often should I use K18?

For best results, use consecutively for the first few washes, then maintain results with less frequent use.

Is K18 good for bleached hair?

K18 is particularly effective for bleached and chemically treated hair, helping to restore strength and reduce breakage.

Will K18 weigh hair down?

The lightweight formula is designed to repair without adding heaviness, making it suitable even for finer hair types.

How long does it take to see results with K18?

Many users notice improved softness and strength after the first few uses, with continued improvement over time.