Philip Kingsley's Pure Blonde Booster Colour-Correcting Weekly Mask is a deep conditioning treatment that strengthens and restores blonde locks. Formulated especially for dull, damaged strands, this keratin packed formula neutralizes brassy blonde tones while improving moisture retention and flexibility. Key Ingredients:Hydrolyzed Keratin: targets the most damaged areas of the hair surface and cortex to replace and fill in lost keratin resulting in smooth, shiny, stronger hairHydrolyzed Vegetable Protein: increases hair strength and resistance to breakageHydrolyzed Oats: smooths and hydratesVitamin B5: draws moisture into the hair shaft to improve elasticity, moisture retention, and flexibilityMagnesium Aspartate, Zinc Gluconate, Copper Gluconate, Ext Violet 2: neutralize warm tones in blonde hair by distributing cool, violet pigments without leaving traces of blue/purple color on the hairKey Benefits:Fortifies hairNeutralizes brassinessReduces breakageSmooths and hydratesBoosts moisture retention. Dermstore has partnered with Flex to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA). This means you can now use your HSA or FSA debit card to buy Philip Kingsley products with pre-tax dollars, resulting in net savings of 30-40%, depending on your tax bracket. Eligible for HSA/FSA with a letter of medical necessity at checkout. From dermatologist-recommended treatments to solutions for chronic skin conditions like acne, eczema, and rosacea, these products are both effective and eligible. | Philip Kingsley Pure Blonde Booster ColourCorrecting Weekly Mask, 5. 07 fl. oz | Dermstore