K18 Biomimetic Hairscience 
DAMAGE SHIELD Protective Conditioner

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$36.00or 4 payments of $9.00 with Klarna or afterpay or paypal

Size: 8.5 oz / 250 mL

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Highlights

Good for: DamageGood for: Damage
Good for: Color CareGood for: Color Care
UV ProtectionUV Protection
Good for: Hair DrynessGood for: Dryness
All Hair TypesAll Hair Types
allure 2024 Clean Beauty Winnerallure 2024 Clean Beauty Winner

About the Product

Item 2731859

Only at Sephora
What it is: A conditioner that protects against damage from UV rays, environmental aggressors, and mechanical styling, while helping soften, detangle, and enhance shine.

Hair Texture: Straight, Wavy, Curly, and Coily

Hair Type: Fine, Medium, and Thick

Hair Concerns:
- Damage, Split Ends, and Breakage
- Frizz
- UV Protection

Key Benefits:
- Protects hair from daily damage to help maintain hair health
- Detangles, softens, smooths frizz, and enhances shine
- Biomimetic shield protects without film-forming silicones and waxes

Highlighted Ingredients:
- Biotech-Produced Polysaccharide: Protects and shields hair from pollution and environmental aggressors.
- Fortifying Ceramide Blend: Seals damage sites, smoothing and protecting hair from future damage.
- K18PEPTIDE™: Replenishes protein lost during washing to fortify hair.

Ingredient Callouts: It is gluten-free and cruelty-free.

What Else You Need to Know: This conditioner helps prevent damage and maintain hair health while weightlessly nourishing and conditioning. It is pH-optimized to minimize excess cuticle swelling during washing and help prevent frizz, preserve color, and enhance shine. This formula is also made without film-forming silicones and waxes that can build up over time and weigh hair down.

Fragrance Description: This conditioner has a clean citrus scent.

Clinical Results: Results observed in a consumer test of 35 subjects after 1 day of usage of the K18 DAMAGE SHIELD protective conditioner:
- 94% agreed hair did not feel weighed down
- Clinically shown to provide conditioning protection against damage from UV rays, mechanical styling, and environmental aggressors for up to 3 days

CLEAN at Sephora is our commitment to offering formulas that go beyond regulatory standards to avoid controversial ingredients without sacrificing on effectiveness.

This product is an Allure Best of Beauty award winner.
-Biotech-Produced Polysaccharide: Protects and shields hair from pollution and environmental aggressors.
-Fortifying Ceramide Blend: Seals damage sites, smoothing and protecting hair from future damage.
-K18PEPTIDE™: Replenishes protein lost during washing to fortify hair.

Water (Aqua) (Eau), Isopropyl Palmitate, Stearyl Alcohol, Propanediol, Isopen1yldiol, Behentrimonium Chloride, Tocopherol, Tocopherylacerate, Sh-Oligopeptide-78,Alteromonas Ferment Extract, Prunus Amygdalus Dulcis (Sweer Almond) Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Phospholipids, Jojoba Esters, Calcium Gwconate, Hydroxypropyl Guar Hydroxypropyl­Trimonium Chloride, Ceramide Np, Phytosteryijisostearyijceiyij Stearyl/Behenyl Dimer Dilinoleate, Polyquaternium-16, Stearalkonium Chloride, Isopropylalcohol, Bij1ylene Glycol, Gluconolactone, Phenoxyerhanol, Sodium Benzoate, Citric Acid, Sodium Hydroxide, Fragrance (Parfum), Hydroxycitronellal.

The list of ingredients is subject to change, please consult the packaging of the product purchased.
Suggested Usage:
-After shampooing with the DAMAGE SHIELD pH Protective Shampoo (sold separately), squeeze out excess water.
-Apply a small amount of conditioner from mid-lengths to ends.
-Rinse thoroughly.
-For best damage repair and prevention results: Use the detox shampoo + K18 molecular repair leave-in mask (sold separately) weekly to repair damage, and use the DAMAGE SHIELD shampoo (sold separately) and conditioner on non-mask wash days, to help prevent additional damage.

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Meet K18 | We’re the biotech breakthrough that’s rewriting the rules on hair care. After 10 years of complex bioscience research, we unlocked our patented K18Peptide that reverses hair damage in four minutes. Born in the salon, stylists, colorists, and hair expressors of all generations are liberating self-expression without having to worry about damage. Our leave-in molecular repair hair mask works with the biology of your hair to strengthen from the inside out.

Shop all K18 Biomimetic Hairscience