L'Oréal Professionnel Paris Absolut Repair Molecular Leave-In Treatment — Heat Protectant 230°C, Repairs & Smooths

L'Oréal Professionnel Paris Absolut Repair Molecular Leave In is a salon-grade leave-in treatment that smooths, strengthens and protects damaged or color-treated hair up to 230°C/450°F.

This lightweight, sulfate-free leave-in cream uses a patented peptides bonder and five amino acids to help rebuild hair’s macromolecular structure after shampoo and serum preparation. Designed for professional results at home, it delivers instant smoothness and shine while providing heat protection for styling. The formula penetrates the fiber without weighing hair down and is formulated for all damaged textures, including chemically treated, lightened and natural hair.

How quickly will I see my hair feel smoother and stronger?

Visible smoothing and improved combability happen immediately after application, especially when used as part of the Absolut Repair Molecular system (shampoo + serum + leave-in). Strength and elasticity benefits are measured instrumentally after the full system is applied.

• Instant smoothing and shine after one use.
• Strength and elasticity improvements with shampoo + serum + leave-in routine.
• Lightweight texture that absorbs into lengths and ends.

Will this protect my hair from heat styling tools?

Yes — the formula provides heat protection up to 230°C/450°F, helping to shield weakened fiber during blow-drying and hot styling. It acts as a heat barrier while also contributing to fiber repair and smoothing.

• Heat protection rated up to 230°C/450°F (instrumental test).
• Ideal before blow-drying, flat ironing, or hot tools.
• Leaves hair touchable rather than stiff or sticky.

How do I use this leave-in for best results?

Apply to towel-dried hair after cleansing and using the Absolut Repair Molecular rinse-out serum. Dispense 2–3 pumps, work evenly through lengths and ends, and leave in—no rinse needed. Follow with air-dry or blow-dry as preferred.

• Use after Absolut Repair Molecular shampoo and rinse-off serum for optimal repair.
• 2–3 pumps on towel-dried hair, distribute from mid-length to ends.
• Can be left in for styling; suitable for daily use when needed.

Is this safe for colored and chemically treated hair?

The leave-in is formulated for all damaged hair types, including color-treated and lightened hair, and is sulfate-free for gentler care. Bond-building peptides and amino acids help reinforce weakened fibers without compromising color.

• Formulated for colored, bleached, highlighted and natural damaged hair.
• Sulfate-free texture maintains color integrity while repairing.
• Co-developed with repair experts to target molecular-level damage.

Who is this for: Professional stylists and at-home users who want a concentrated, salon-grade leave-in that targets long-term-looking damage while protecting hair during heat styling. It's ideal for anyone with weakened, chemically treated, heat-stressed or dull hair seeking smoother, stronger, shinier results without a heavy finish.

Ingredients

1239935 - INGREDIENTS: AQUA / WATER / EAU • ISOPROPYL MYRISTATE • DIMETHICONE • AMODIMETHICONE • TRIETHANOLAMINE • PHENOXYETHANOL • CARBOMER • POLYQUATERNIUM-4 • POTATO STARCH MODIFIED • HYDROXYPROPYL GUAR • BEHENTRIMONIUM CHLORIDE • ARGININE • TRIDECETH-6 • ISOPROPYL ALCOHOL • CETRIMONIUM CHLORIDE • LINALOOL • GLYCINE • SERINE • TYROSINE • CITRIC ACID • GLUTAMIC ACID • COUMARIN • BENZYL ALCOHOL • BENZYL BENZOATE • ALPHA-ISOMETHYL IONONE • PARFUM / FRAGRANCE (F.I.L. N70026829/1).