KERASTASE Resistance Extentioniste Thermique - Heat Protecting Leave-In Cream for Stronger Ends

Introducing KERASTASE Resistance Extentioniste Thermique, a heat-protecting leave-in cream designed for mid-lengths and ends. This lightweight primer conditions as it shields hair from styling heat, helping to maintain manageability and a polished look without weighing hair down.

Key benefits at a glance

• 90% less hair breakage from blow-drying when used as part of the Extentioniste routine*
• Seals split ends to help you maintain a neat, smooth finish
• Heat protection up to 450°F / 232°C to minimize styling stress
• Creatine R complex reinforces the internal structure of the hair fiber
• Ceramides improve surface integrity, boost shine, elasticity, and moisture retention
• Taurine adds conditioning support for healthier-feeling strands

How it works

The Extentioniste Thermique primer is designed to work with the Extentioniste Shampoo and Conditioner. It delivers a dual action: a protective barrier during heat styling and moisture retention that supports flexibility and resilience in the hair shaft.

• Creatine R combines Creatine with amino acids to strengthen internal fibers
• Ceramides help reinforce surface integrity and reduce moisture loss

Usage and routine tips

Apply a quarter-sized amount to wet hair, focusing on mid-lengths and ends. Style as usual with heat tools. For best results, use alongside Extentioniste Shampoo and Conditioner to support longer, stronger-looking strands.

Who should consider this

Ideal for mid-lengths to ends that can benefit from targeted protection during heat styling, helping to create a cohesive routine for healthier-looking lengths.

Resistance Collection note

For weakened hair seeking healthy lengths, pair Extentioniste Thermique with Extentioniste Shampoo and Conditioner to pursue reinforced hair and sealed ends.

Texture and sensory notes

The formula absorbs quickly, leaving hair feeling smooth without heaviness. A subtle, premium fragrance accompanies a luxurious yet airy texture, making styling feel discreetly pampering rather than burdensome.

*Claims reflect product data and routine context. Results may vary by individual use and hair type.