KÉRASTASE Chroma Absolu Leave-In Hair Serum for Color-Treated Hair — 5.1 fl oz, Heat Protection to 450°F & Anti-Frizz

KÉRASTASE Chroma Absolu Hair Serum is a leave-in smoothing treatment that moisturizes color-treated hair, protects against heat up to 450ºF, controls frizz and extends color vibrancy.

This lightweight serum from the Chroma Absolu line is designed specifically for processed and color-treated hair. It combines moisturizing agents, AHA (lactic acid), Centella Asiatica and Vitamin E to reinforce weakened fibers while sealing the hair surface. Use on damp, towel-dried hair before air-drying or blow-drying to reduce porosity, increase shine and help keep color looking fresh longer.

How does this serum protect hair during heat styling?

The formula creates a protective layer around strands that reduces heat transfer and minimizes structural damage during blow-drying and hot tools. It’s rated to help protect against thermal exposure up to 450ºF, while also smoothing the cuticle to cut down on breakage caused by friction.

• Heat protection up to 450ºF for styling tools
• Reduces porosity to limit heat-induced moisture loss
• Lightweight finish prevents greasy buildup under heat

Will it help with frizz and shine on color-treated hair?

Yes — the serum targets frizz caused by color processing and environmental humidity by sealing the cuticle and adding moisture. The result is reduced flyaways, amplified shine and a smoother texture that makes color look more reflective and vibrant.

• Moisturizes to tame frizz and flyaways
• Restores intense softness and reflective shine
• Helps color appear more luminous and longer-lasting

What ingredients restore and strengthen processed hair?

KÉRASTASE Chroma Absolu Hair Serum uses a blend of lactic acid (an AHA), Centella Asiatica and Vitamin E to support fragile, chemically treated fibers. These components work together to rebuild and reinforce the hair surface while delivering antioxidant protection and gentle exfoliation of the cuticle for smoother, healthier-looking strands.

• Lactic Acid: reduces surface roughness and porosity
• Centella Asiatica: helps reinforce weakened fiber structure
• Vitamin E: antioxidant support to protect from external stressors

How should I use the serum for best results?

For optimal performance, spray 6–10 pumps onto damp, towel-dried hair and distribute evenly from roots to ends with a comb. Do not rinse out; finish by air-drying or blow-drying depending on your preferred style. Regular use after color services helps maintain softness and color longevity.

• Apply 6–10 sprays to damp, towel-dried hair
• Comb through from root to tip for even coverage
• Leave in and air-dry or blow-dry; no rinse required

Who is this for: KÉRASTASE Chroma Absolu Hair Serum is tailored for anyone with color-treated, highlighted, bleached or otherwise chemically processed hair who wants to reduce frizz, boost shine and add thermal protection during styling. It’s suitable for all hair textures that need targeted moisture and fiber reinforcement without a heavy residue, and for clients seeking salon-grade color care to extend vibrancy between treatments.

Ingredients

Aqua/Water/Eau, Amodimethicone, Peg-40 Hydrogenated Castor Oil, Trideceth-5, Polyquaternium-37, Phenoxyethanol, Propylene Glycol Dicaprylate/Dicaprate, Glycerin, Tocopherol, Arginine, Phenyl Trimethicone, Trideceth-10, Lactic Acid, Ppg-1 Trideceth-6, Chlorhexidine Digluconate, Sorbitan Oleate, Acetic Acid, Quaternium-87, Sodium Hyaluronate, Centella asiatica Extract, Tartaric Acid, Linalool, Propylene Glycol, Limonene, Geraniol, Hydroxycitronellal, Parfum/Fragrance. N279920/1.