KÉRASTASE Densifique Thickening Shampoo for Fine & Thinning Hair — 16.9 fl oz, Hyaluronic Acid & Lightweight Polymers

This professional-grade shampoo cleanses the scalp and hair while targeting the visual and textural concerns of fine, limp, or thinning hair. The formula contains hyaluronic acid and polymers that help improve fiber texture and uniformity, producing fuller-looking strands without weighing hair down. Packaged in a 500 ml (16.9 fl oz) refillable bottle made from 100% recycled plastic*, it also supports sustainability initiatives in beauty. *Excludes pump, colorants & additives.

How does this shampoo make hair look thicker and fuller?

The shampoo uses lightweight polymers that coat and smooth the hair shaft, improving strand uniformity and the perception of density. By cleansing away excess oils and buildup, it lets each fiber better reflect light and appear more voluminous. Results are cosmetic and immediate—hair feels more substantial after use.

• Polymers create a light film to increase strand diameter visually
• Removes product residue that flattens roots and diminishes lift
• Improves fiber texture for a more uniform appearance

What role does hyaluronic acid play in this formula?

Hyaluronic acid helps maintain optimal moisture levels along the hair fiber and scalp without adding weight. Hydrated hair fibers look healthier and reflect light more evenly, which enhances shine and the appearance of volume. The ingredient supports flexible, resilient strands when used as part of a routine.

• Hydrates fibers for improved elasticity and sheen
• Helps reduce friction between strands for smoother texture
• Lightweight hydration that avoids limpness

Is the bottle refillable and eco-conscious?

Yes—the 500 ml bottle is designed to be refillable and is produced from 100% recycled plastic (excluding pump, colorants and additives). Choosing the larger, refillable format reduces single-use packaging compared with multiple small bottles, aligning with sustainable bathroom routines.

• 500 ml (16.9 fl oz) refillable bottle for fewer disposables
• Made from 100% recycled plastic material (packaging exceptions noted)
• Professional salon-quality format for longer-lasting supply

How should I use it for best results?

Apply to wet hair, gently lathering at the scalp and working through to ends, then rinse thoroughly. For enhanced effect, follow with a KÉRASTASE Densifique conditioner or mask tailored to fine, thinning hair. Use regularly as part of a hair-density regimen to maintain cleaner, lifted roots and smoother fiber texture.

• Apply on wet hair; massage into scalp and lengths; rinse well
• Pair with Densifique conditioner or treatments for best results
• Use consistently—regular cleansing keeps buildup from flattening hair

Who is this for: KÉRASTASE Densifique Bain Densité is intended for people with fine, limp, or visibly thinning hair who want an immediate cosmetic boost in density and shine without heavy residue. It suits those seeking salon-quality performance, lightweight hydration from hyaluronic acid, and a larger refillable format for a more sustainable routine. Avoid if you need a sulfate-free label—this product is designed for effective clarifying and texturizing results.