Best for: Lightened, cool blonde or grey hair with unwanted yellow or brassy tones.

What is Kérastase Blond Absolu Bain Ultra-Violet Shampoo?

Kérastase Blond Absolu Bain Ultra-Violet is a nourishing purple shampoo for lightened, cool blonde and grey hair. Formulated with Ultra-Violet neutralisers, Hyaluronic Acid and Vitamins C & E, it instantly neutralises unwanted brassy and yellow undertones while leaving hair looking brighter, nourished and shiny.

The Ultra-Violet formula helps strengthen the hair fibre to improve resilience to daily stressors while providing an instant boost in smoothness and nourishment. It also helps protect hair against oxidation to maintain a soft, vibrant cool tone.

Who is it best for?

Kérastase Blond Absolu Bain Ultra-Violet may suit you if your hair:

• is lightened or blonde

• is a cool blonde shade

• is grey

• has unwanted yellow undertones

• has developed brassy tones

• needs a purple shampoo to maintain a cooler tone

• needs nourishment and smoothness alongside colour neutralisation

• needs added shine and brightness

What problem does it solve?

Blond Absolu Bain Ultra-Violet is specifically designed to neutralise unwanted yellow and brassy undertones in lightened, cool blonde and grey hair.

Its Ultra-Violet neutralising pigments help maintain and perfect cool tones while the formula nourishes, smooths and strengthens the hair fibre.

For customers choosing between the Blond Absolu shampoos, its primary purpose is clear:

Brassy or yellow undertones → Ultra-Violet neutralisation → brighter, cooler-looking blonde or grey hair.

Benefits

• Instantly neutralises unwanted yellow and brassy undertones

• Helps maintain cool blonde tones

• Suitable for lightened, cool blonde and grey hair

• Helps protect hair against oxidation

• Helps strengthen the hair fibre

• Improves resilience to daily stressors

• Provides an instant boost in smoothness and nourishment

• Helps leave hair brighter and shinier

• Helps maintain a soft, vibrant cool tone

• Up to 72 hours of shine*

• Up to 72 hours of nourishment**

• Provides instant neutralisation***

*Instrumental test after application of Bain Ultra-Violet Shampoo.
**Instrumental test after application of Bain Ultra-Violet Shampoo + Masque Ultra-Violet Hair Mask.
***Instrumental test.

Key ingredients

Ultra-Violet Neutralisers: Neutralising pigments help remove unwanted brassiness and yellow undertones.

Hyaluronic Acid: The formula uses two distinct molecular weights of Hyaluronic Acid. According to Kérastase, the low molecular weight Hyaluronic Acid penetrates the hair fibre to improve resistance, while the high molecular weight enhances smoothness and provides a plumping effect.

Vitamins C & E: Within the formula, Vitamin C and Vitamin E work together to brighten the hair fibre's cuticle and help maintain the integrity of the hair fibre.

How to use

Apply Kérastase Blond Absolu Bain Ultra-Violet Shampoo to wet hair.

Leave on for at least 2 minutes, or longer depending on the desired degree of neutralisation.

Rinse thoroughly.

In case of direct contact with eyes, rinse thoroughly with water. Avoid eye contact. Adult use only.

Why choose Kérastase Blond Absolu Bain Ultra-Violet?

Hair type: Lightened, cool blonde or grey hair
Primary concern: Yellow and brassy undertones
Best for: Neutralising brassiness and maintaining cool tones
Product type: Purple shampoo
Primary action: Neutralises yellow and brassy undertones
Additional benefits: Nourishes, smooths, strengthens and adds shine
Key ingredients: Ultra-Violet neutralisers + Hyaluronic Acid + Vitamins C & E
Leave-on time: At least 2 minutes
Size: 250ml
Routine step: Cleanse and neutralise
Brand: Kérastase
Range: Blond Absolu

Millies Expert Advice

If unwanted yellow or brassy undertones are your main blonde hair concern, choose Bain Ultra-Violet as the neutralising shampoo within the Kérastase Blond Absolu range.

Apply to wet hair and leave on for at least 2 minutes. Kérastase states that it can be left on for longer depending on your desired degree of neutralisation.

Pair with other products from the Blond Absolu range, including Cicaflash Conditioner and Blonde Guard, for brightness and softness.

Is Kérastase Blond Absolu Bain Ultra-Violet right for me?

Choose this shampoo if: you have lightened, cool blonde or grey hair and your main concern is unwanted yellow or brassy undertones.

It may also suit you if: you want a purple shampoo that combines neutralisation with nourishment, smoothness, strengthening and shine.

Frequently Asked Questions

What is Kérastase Blond Absolu Bain Ultra-Violet Shampoo?

Kérastase Blond Absolu Bain Ultra-Violet is a nourishing purple shampoo for lightened, cool blonde or grey hair. It uses Ultra-Violet neutralisers to instantly neutralise unwanted brassy and yellow undertones.

Is Kérastase Bain Ultra-Violet a purple shampoo?

Yes. Bain Ultra-Violet is Kérastase's purple shampoo within the Blond Absolu range and is designed to neutralise unwanted yellow and brassy undertones.

Is Kérastase Bain Ultra-Violet good for brassy blonde hair?

Yes. Neutralising brassy and yellow undertones is one of the shampoo's primary benefits. It is designed to help reveal brighter, hydrated-feeling blonde hair and maintain a vibrant cool tone.

Can I use Kérastase Bain Ultra-Violet on grey hair?

Yes. Kérastase specifically recommends Bain Ultra-Violet for lightened, cool blonde and grey hair.

How long should I leave Kérastase Bain Ultra-Violet Shampoo on?

Kérastase recommends leaving Bain Ultra-Violet on wet hair for at least 2 minutes. It can be left on for longer depending on the desired degree of neutralisation.

Does Kérastase Bain Ultra-Violet neutralise yellow tones?

Yes. The Ultra-Violet neutralising pigments are designed to neutralise unwanted yellow and brassy undertones.

Does Kérastase Bain Ultra-Violet strengthen hair?

Kérastase states that the Ultra-Violet formula strengthens the hair fibre to increase its resilience to daily stressors.

Does Kérastase Bain Ultra-Violet add shine?

Yes. Kérastase reports up to 72 hours of shine following application of Bain Ultra-Violet Shampoo, based on an instrumental test.

Is Kérastase Bain Ultra-Violet nourishing?

Yes. Kérastase describes Bain Ultra-Violet as a nourishing purple shampoo. The brand reports up to 72 hours of nourishment when Bain Ultra-Violet Shampoo is used with Masque Ultra-Violet Hair Mask.

Ingredients

Aqua / Water / Eau, Sodium Laureth Sulfate, Coco-Betaine, Glycol Distearate, Sodium Chloride, Cocamide MIPA, Dimethicone, Citric Acid, Sodium Benzoate, Sodium Hydroxide, Hexylene Glycol, CI 60730 / Acid Violet 43, Salicylic Acid, Tetramethyl Acetyloctahydronaphthalenes, Carbomer, Tocopherol, Ascorbyl Glucoside, Carvone, Citrus Aurantium Peel Oil, Limonene, Linalyl Acetate, Linalool, Guar Hydroxypropyltrimonium Chloride, Sodium Hyaluronate, Geraniol, Pinene, Fumaric Acid, Parfum / Fragrance.

Ingredient lists can change. Refer to the product packaging for the most current ingredient information.