KERASTASE Genesis Homme Bain De Masse Épaississant Thickening Shampoo 250ml

KERASTASE Genesis Homme Bain De Masse Épaississant 250ml is a professional thickening and volumising shampoo for men with fine, weakened or thinning hair. It gently cleanses the scalp, hair and beard while helping strengthen and thicken the hair fibre for an instantly fuller-looking appearance. KERASTASE reports 5x fuller-looking hair, alongside increased volume and reduced breakage after application.

Instant thickening effect – Helps individual hair fibres feel thicker for visibly fuller-looking hair.

+38% more volume* – Provides noticeable body and lift to fine, thinning hair.

85% less breakage* – Helps strengthen weakened hair and improve resistance.

5x fuller-looking hair – KERASTASE's headline benefit for Bain De Masse Épaississant.

Scalp, hair & beard cleansing – Gently clarifies while adding texture and volume.

250ml · Men's Thickening Shampoo · Fine Hair · Thinning Hair · Volume · Strengthening

*Instrumental testing after application of Bain De Masse.

Best for: Men's hair • Fine hair • Thinning hair • Weakened hair • Flat hair • Hair lacking density • Hair lacking volume • Fuller-looking hair

What Is It?

KERASTASE Genesis Homme Bain De Masse Épaississant Thickening Shampoo 250ml is the thickness-boosting shampoo within the Genesis Homme collection, specifically developed for men with weakened hair prone to thinning.

This is the Genesis Homme shampoo I would position most strongly around:

THINNING HAIR + THICKNESS + VOLUME + FULLER-LOOKING HAIR

Its purpose is not simply to cleanse.

KERASTASE formulates Bain De Masse to help strengthen and thicken the existing hair fibre, creating an immediate fuller-looking effect while increasing texture and volume.

The effect is:

Cleanse → Strengthen → Thicken → Volumise → Fuller-Looking Hair

Bain De Masse vs Bain De Force Quotidien

This distinction is very important because we now have both Genesis Homme shampoos on Peggymou.

Bain De Masse Épaississant → Thickening & volume. Best when the main concern is fine/thinning hair that looks flat, sparse or lacking density.

Bain De Force Quotidien → Daily strengthening & purifying. Best when the priority is frequent cleansing of weakened hair prone to thinning.

KERASTASE itself describes Bain De Masse as a “Thickness Boosting Shampoo” and Bain De Force Quotidien as a “Daily Purifying Fortifying Shampoo.”

KERASTASE also notes that Bain De Masse is intended for hair fall that is somewhat more advanced, whereas Bain De Force is the daily purifying/fortifying option.

So for customer recommendations:

“My hair is getting thinner and I want it to LOOK thicker.” → Bain De Masse

“My hair is weak and I want an everyday strengthening shampoo.” → Bain De Force Quotidien

Why You'll Love It

• Thickening shampoo specifically for men
• Designed for fine and thinning hair
• Helps create 5x fuller-looking hair*
• +38% more volume*
• 85% less breakage*
• +28% softer hair*
• Instantly thickens the feel of the hair fibre
• Helps strengthen weakened hair
• Adds texture and body
• Helps improve the appearance of density
• Cleanses scalp, hair and beard
• Contains Creatine
• Contains Ginger Root Extract
• Professional Genesis Homme care
• 250ml

*KERASTASE instrumental testing after application.

Who Is It For?

Ideal for:

Men's hair
Fine hair
Thinning hair
Weakened hair
Flat hair
Hair lacking density
Hair lacking volume
Hair prone to breakage
Hair that appears sparse
Men wanting thicker-looking hair
Men concerned about progressive thinning

Pair Me With

KERASTASE Genesis Homme Sérum Anti-Chute Fortifiant 90ml – The most important treatment addition when thinning is accompanied by hair fall. The serum is the targeted daily anti-hair-fall step within Genesis Homme.

KERASTASE Genesis Homme Spray De Force Épaississant 150ml – The perfect styling partner when the customer wants even more immediate thickness, body and volume. KERASTASE positions it as its Genesis Homme thickness-boosting spray.

KERASTASE Genesis Homme Cire D'Épaisseur Texturisante 75ml – Finish with the thickening molding clay when the customer wants texture, definition and matte styling while maintaining a fuller-looking hairstyle.

Recommended Thickening Routine for Men

Bain De Masse Épaississant → Spray De Force Épaississant → Cire D'Épaisseur Texturisante

For thinning hair also prone to falling:

Bain De Masse Épaississant → Sérum Anti-Chute Fortifiant → Spray De Force Épaississant → Cire D'Épaisseur Texturisante

This gives us a very strong Genesis Homme routine on Peggymou:

Cleanse & Thicken → Treat Hair Fall → Boost Volume → Texture & Style

Genesis Homme Bain de Masse Épaississant Shampoo | Kérastase UK

Step 1
Work the Bain de Masse Epaississant through wet hair.

Step 2
Rinse thoroughly & towel dry.

Step 3
In case of contact with eyes, rinse them immediately and thoroughly. .

AQUA / WATER / EAU ● SODIUM C14-16 OLEFIN SULFONATE ● COCAMIDE MEA ● GLYCERIN ● COCAMIDOPROPYL BETAINE ● GLYCOL DISTEARATE ● SODIUM LAUROYL SARCOSINATE ● HEXYLENE GLYCOL ● CITRIC ACID ● SODIUM HYDROXIDE ● SODIUM CHLORIDE ● PEG-55 PROPYLENE GLYCOL OLEATE ● PROPYLENE GLYCOL ● COCO-BETAINE ● SODIUM BENZOATE ● HYDROXYPROPYL GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE ● SALICYLIC ACID ● CARBOMER ● BENZOIC ACID ● POLYQUATERNIUM-7 ● LINALOOL ● LIMONENE ● SODIUM HYALURONATE ● ARGININE ● CENTELLA ASIATICA EXTRACT ● LACTIC ACID ● CI 17200 / RED 33 ● CI 19140 / YELLOW 5 ● PARFUM / FRAGRANCE ●