Best for: Oily roots with dry or sensitised lengths and ends that need cleansing, rebalancing, nourishment, softness and shine.

What is Kérastase Spécifique Bain Divalent Shampoo?

Kérastase Spécifique Bain Divalent is a shampoo for oily roots that helps cleanse and rebalance the scalp while caring for dry and sensitised lengths and ends.

Designed for hair with contrasting needs, it helps remove excess sebum and purify the scalp while nourishing dry or sensitised lengths. Hair at the roots becomes greasy less quickly, while the lengths remain nourished and regain softness and shine.

The formula is silicone-free and is designed to address the combination of an oily scalp with drier lengths and ends.

Who is it best for?

Kérastase Spécifique Bain Divalent may suit you if your hair:

• becomes oily quickly at the roots

• has an oily scalp

• has dry or sensitised lengths and ends

• needs excess sebum removed from the scalp

• needs gentle removal of build-up

• needs the scalp and lengths rebalanced

• feels dry through the lengths despite having oily roots

• needs softness and shine restored

• needs a silicone-free shampoo

What problem does it solve?

Kérastase Spécifique Bain Divalent is designed for the contrasting needs of oily roots and dry or sensitised lengths.

Rather than focusing only on removing oil, it helps care for both areas of the hair:

Oily roots → cleansing and removal of excess sebum

Dry or sensitised lengths and ends → nourishment, softness and shine

Kérastase states that hair at the roots becomes greasy less quickly while the lengths remain nourished.

This makes Bain Divalent particularly relevant when your scalp becomes oily but your lengths and ends still feel dry.

Benefits

• Helps address oily roots

• Helps remove excess sebum

• Gently removes build-up

• Helps clarify and purify the scalp

• Helps rebalance the scalp and hair

• Nourishes dry and sensitised lengths and ends

• Helps hair at the roots become greasy less quickly

• Helps hair regain softness

• Adds shine

• Helps keep lengths nourished

• Helps seal split ends

• Silicone-free formula

Key ingredients

Vitamin B6 / Pyridoxine HCl

Capryloyl Glycine

Salicylic Acid

These ingredients are present within the Bain Divalent formula. The existing Millies description specifically highlights Vitamin B6 in relation to helping regulate oil production in the scalp.

How to use

Apply a quarter-sized amount of Kérastase Spécifique Bain Divalent Shampoo to wet hair.

Massage from the scalp through to the ends.

Rinse thoroughly.

The existing Millies routine recommends shampooing twice for best results and leaving the second cleanse on for 1–3 minutes before rinsing.

Follow with a suitable Kérastase conditioner.

In case of contact with eyes, rinse immediately.

Keep out of reach of children.

Why choose Kérastase Spécifique Bain Divalent?

Hair concern: Oily roots with dry or sensitised lengths
Scalp type: Oily
Lengths and ends: Dry or sensitised
Best for: Balancing the needs of oily roots and drier lengths
Product type: Shampoo
Primary action: Cleanses oily roots while nourishing dry lengths
Additional benefits: Softness + shine
Formula: Silicone-free
Size: 250ml
Routine step: Cleanse
Brand: Kérastase
Range: Spécifique

Millies Expert Advice

If your roots become oily quickly but your lengths and ends feel dry, Bain Divalent is specifically designed to address both concerns rather than treating the entire hair length in the same way.

Focus your cleanse on the scalp and oily roots, then work the shampoo gently through the lengths.

For best results, the existing Millies routine recommends shampooing twice and using tepid water.

Last reviewed: August 2026

Is Kérastase Spécifique Bain Divalent right for me?

Choose this shampoo if: your roots become oily while your lengths and ends are dry or sensitised and you need a shampoo that cleanses the scalp while keeping the lengths nourished.

It may be particularly suitable if: your roots become greasy quickly but you don't want your shampoo to leave already-dry lengths and ends feeling unnourished.

Frequently Asked Questions

What is Kérastase Spécifique Bain Divalent Shampoo?

Kérastase Spécifique Bain Divalent is a shampoo for oily roots. It helps cleanse the scalp while nourishing dry and sensitised lengths and ends, helping hair regain softness and shine.

Who is Kérastase Bain Divalent best for?

Bain Divalent is particularly suited to hair with oily roots and dry or sensitised lengths and ends.

Is Kérastase Bain Divalent good for oily hair?

Kérastase specifically positions Bain Divalent as a shampoo for oily roots. It helps address excess sebum, with the brand stating that hair at the roots becomes greasy less quickly.

Is Kérastase Bain Divalent good for oily roots and dry ends?

Yes. This combination is central to Bain Divalent's positioning. It addresses oily roots while nourishing dry and sensitised lengths and ends.

Does Kérastase Bain Divalent dry out the ends of the hair?

Bain Divalent is designed to treat the contrasting needs of the scalp and lengths. Kérastase states that while hair at the roots becomes greasy less quickly, the lengths remain nourished and regain softness and shine.

Does Kérastase Bain Divalent help with excess sebum?

Yes. The existing Millies description states that Bain Divalent helps remove excess sebum and addresses oily roots.

Does Kérastase Bain Divalent contain silicone?

The existing Millies description identifies Bain Divalent as silicone-free.

Does Kérastase Bain Divalent add shine?

Yes. Kérastase states that the lengths regain softness and shine, while increased shine is also included among the benefits in the existing Millies description.

How do I use Kérastase Bain Divalent?

Apply a quarter-sized amount to wet hair, massage from the scalp through to the ends and rinse. The existing Millies routine recommends shampooing twice for best results.

Should I shampoo twice with Kérastase Bain Divalent?

The existing Millies instructions recommend shampooing twice and leaving the second cleanse on for 1–3 minutes before rinsing.

Ingredients

Aqua / Water, Sodium Laureth Sulfate, TEA-Lauryl Sulfate, Cocamide MIPA, Disodium Cocoamphodiacetate, Glycol Distearate, Hexylene Glycol, Sodium Chloride, Sodium Benzoate, Capryloyl Glycine, Sodium Methylparaben, Polyquaternium-11, Salicylic Acid, Carbomer, Ethylparaben, Pyridoxine HCl, Menthoxypropanediol, Guar Hydroxypropyltrimonium Chloride, Hexyl Cinnamal, Linalool, Methylparaben, Citronellol, Benzyl Alcohol, Fumaric Acid, Sodium Hydroxide, Citric Acid, Parfum / Fragrance.

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