Damage Shield pH Protective Conditioner

The Damage Shield pH Protective Conditioner by K18 is a nourishing, protective conditioner that actively defends the hair fibre against everyday aggressors while fortifying, softening and restoring shine and smoothness with every wash.

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Protective hair conditioner with K18PEPTIDE™ and biotech biomimetic shield

Designed as the cornerstone of a daily protection routine, the Damage Shield Conditioner goes far beyond conventional conditioning. Its highly concentrated, lightweight formula — free from film-forming silicones and waxes — instantly detangles and softens without weighing hair down or leaving any residue.

Its triple protective action is built on three complementary actives: a biotech-produced polysaccharide forms a biomimetic shield on the hair surface to repel pollution and environmental aggressors; a fortifying ceramide blend seals damage sites in the cuticle to prevent further deterioration; and the patented K18PEPTIDE™ works from within to limit protein loss during washing and maintain long-term hair strength.

This protection is clinically proven to last up to 3 days post-application — well beyond the rinse. Colour-safe and suitable for all hair types and textures.

The hair benefits of K18 long-lasting protective conditioner

• Multi-threat protection for up to 3 days: the hair fibre is shielded against UV rays, mechanical styling and environmental pollutants long after rinsing, for hair that stays healthier between washes.
• Cuticle fortification and resilience: damaged sites along the cuticle are sealed, the surface is smoothed and hair becomes more resistant to external aggressors over time.
• Colour preservation and enhanced shine: a closed, protected cuticle better reflects light, locks in colour pigments and amplifies natural brilliance.
• Weightless softening, smoothing and detangling: an ultra-lightweight formula that disciplines the hair fibre, eases detangling and improves manageability with no coating effect or buildup.
• Long-term hair health maintenance: protein loss during washing is minimised, keeping hair strong, flexible and healthy with consistent use.

Key ingredients

• K18PEPTIDE™ – a patented bioactive peptide that penetrates the hair fibre to limit protein loss during washing, maintaining strength and elasticity over time
• Biotech-produced polysaccharide – a biomimetic active derived through fermentation that forms a protective shield on the hair surface, repelling pollution, fine particles and everyday environmental aggressors
• Ceramides – lipid actives that seal damage sites in the cuticle, smooth the hair surface and reinforce the outer barrier against further damage
• Sweet almond oil – a nourishing, emollient plant oil that softens the hair fibre, enhances shine and eases detangling without weighing hair down
• Jojoba – jojoba oil and esters that deliver lightweight softness, suppleness and hydrolipidic protection to the hair fibre
• Tocopherol – vitamin E that neutralises free radicals and shields the hair fibre from oxidative stress and environmental aggressors

A protective conditioner for all hair types and textures, including colour-treated, fragile and chemically processed hair.

*Clinically proven protection against damage from UV rays, mechanical styling and environmental aggressors for up to 3 days post-application.

How to use the K18 Damage Shield Protective Conditioner

After shampooing, apply a small amount from mid-lengths to ends and build as needed — less is more with this concentrated formula. Leave on for a few minutes, then rinse thoroughly.

For best results, use in combination with the Damage Shield pH Protective Shampoo. Safe for use at every wash.