KÉRASTASE Blond Absolu Ultra-Violet Purple Hair Mask 6.8 fl oz — Neutralizes Brassiness, Hyaluronic Acid

KÉRASTASE Blond Absolu Ultra-Violet is a purple hair mask designed to neutralize brassy and yellow undertones while nourishing lightened, highlighted, or grey hair.

If you maintain cool blonde, bleached, or naturally grey hair, brassiness from mineral buildup, oxidation, and environmental exposure can dull your color and texture. This mask deposits concentrated blue and violet pigments to counteract warm tones and uses hyaluronic acid to replenish moisture, strengthen fibers, and improve shine. It’s formulated for periodic use after shampooing to refresh tone, reduce breakage, and keep lightened hair looking luminous between salon visits.

How quickly will this purple mask neutralize brassy or yellow tones?

Results are noticeable after the first application: the blue-violet pigments immediately cancel warm undertones and visibly cool the color. The degree of neutralization depends on hair porosity, current tone, and how long you leave the product on.

• Apply to towel-dried, shampooed hair for even pigment deposit
• Leave 3–5 minutes for regular toning; extend for darker brassiness
• Rinse thoroughly to avoid over-toning on very porous hair

What does the mask do for hair health and shine?

Beyond color correction, the formula includes hyaluronic acid to attract and retain moisture in the fiber, improving softness and elasticity. Regular use helps reduce breakage and enhances surface luminosity so strands look smoother and reflect light better.

• Hyaluronic acid hydrates and plumps the hair cortex
• Conditioning agents smooth cuticles for increased shine
• Protects from oxidative stress and environmental pollutants

How should I incorporate this mask into my routine for best results?

Use the mask as a targeted treatment after shampooing, once or twice weekly depending on how quickly your color shifts. For best tone maintenance, combine with other Blond Absolu products and adjust application time to your hair’s needs.

• Shampoo, towel-dry, then apply through mid-lengths and ends
• Massage evenly and leave for 3–5 minutes; longer for stronger toning
• Rinse thoroughly and follow with your styling products

Is this product safe for chemically treated or grey hair?

Yes — the mask is formulated for processed, lightened, and grey hair. Pigments neutralize brassiness without stripping color, while nourishing ingredients support fragile, chemically treated strands.

• Suitable for bleached, highlighted, and naturally grey hair
• Non-stripping toning pigments restore cool shades
• Strengthening components help prevent breakage from processing

Who is this for: KÉRASTASE Blond Absolu Ultra-Violet Purple Hair Mask is aimed at anyone with lightened, highlighted, ashy, or grey hair who wants to maintain cool tones and improve hair health. If you’re battling yellowing or brassy casts and need a conditioning, color-refreshing treatment that also strengthens and adds shine, this mask fits into weekly or bi-weekly care routines. Professional stylists and at-home users can adjust leave-in time to achieve subtle to stronger neutralization while relying on hyaluronic acid-rich conditioning to protect processed strands.

Ingredients

Aqua / Water / Eau, Cetearyl Alcohol, Paraffinum Liquidum / Mineral Oil / Huile Minerale, Dipalmitoylethyl Hydroxyethylmonium Methosulfate, Cetyl Esters, Parfum / Fragrance, Cetrimonium Chloride, Citric Acid, Sodium Benzoate, Sodium Hydroxide, Caprylyl Glycol, Salicylic Acid, Ci 60730 / Acid Violet 43, Limonene, Glycerin, Sodium Hyaluronate, Tocopherol, Ci 45100 / Acid Red 52, Leontopodium Alpinum Flower/Leaf Extract, Malva Sylvestris Flower Extract / Mallow Flower Extract, Potassium Sorbate.