Products are split into three levels based on ingredient labels

GO
Best choice
SLOW
Contains ingredients with possible health concerns
STOP
Contains harmful ingredients
STOP

K18 BIOMIMETIC HAIRSCIENCE

DAMAGE SHIELD protective conditioner

Last verified: March 9, 2026

  • Water (Aqua) (Eau)
  • Isopropyl Palmitate
  • Stearyl Alcohol
  • Propanediol
  • Isopentyldiol
  • Behentrimonium Chloride
  • Tocopherol
  • Tocopheryl Acetate
  • sh-Oligopeptide-78
  • Alteromonas Ferment Extract
  • Prunus Amygdalus Dulcis (Sweet Almond) Oil
  • Simmondsia Chinensis (Jojoba) Seed Oil
  • Phospholipids
  • Jojoba Esters
  • Calcium Gluconate
  • Hydroxypropyl Guar Hydroxypropyltrimonium Chloride
  • Ceramide NP
  • Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate
  • Polyquaternium-16
  • Stearalkonium Chloride
  • Isopropyl Alcohol
  • Butylene Glycol
  • Gluconolactone
  • Phenoxyethanol
  • Sodium Benzoate
  • Citric Acid
  • Sodium Hydroxide
  • Fragrance (Parfum)
  • Hydroxycitronellal

Why This Product is Rated STOP

DAMAGE SHIELD protective conditioner by K18 BIOMIMETIC HAIRSCIENCE has been evaluated by Million Marker and contains ingredients with known health concerns. This product is rated STOP, indicating higher concern.

We recommend avoiding STOP-rated products and seeking safer alternatives from our GO or SLOW categories.

Learn more about how Million Marker scores products →

Frequently Asked Questions

DAMAGE SHIELD protective conditioner by K18 BIOMIMETIC HAIRSCIENCE - Non-toxic Shampoos + Conditioners product rated STOP by Million Marker, free from BPA, phthalates, and parabens

Please note that product images displayed on this page are obtained from third-party sources and provided for informational purposes only. Manufacturers and retailers may change product packaging, labeling, ingredients, or appearance without notice, so images may not reflect the most current version. Million Marker does not guarantee the accuracy of product images.