Kevin Murphy Heated.defense Leave-in Heat Protection 150ml

Rely on a weightless thermal barrier that protects up to 232°C (450°F) without leaving heavy buildup. Kevin Murphy’s HEATED.DEFENSE operates as a lightweight leave-in foam designed to shield vulnerable hair shafts before they contact heated tools. Rather than depositing uniform silicone coatings, targeted copolymers migrate to fractured cuticle edges, forming an invisible film that dissipates temperature spikes while preserving natural volume and movement.

The chemistry pairs hydrolyzed quinoa with polyquaternium to reinforce structural integrity and reduce mechanical friction from brushes, clips, or tension-based blow-drying. Organic jojoba combined with castor oil restores elastic recovery, helping hair resist mid-cycle fracture. Formulated completely free of sulfates and parabens, the formula rinses cleanly, leaves zero mineral residue, and maintains a dry-touch finish that works across fine, medium, and coarse textures.

Apply one to three pumps through damp hair immediately after washing and rinsing. Distribute the foam evenly from mid-lengths to ends, allowing it to settle before proceeding with your regular styling routine. Layer this protection before other Kevin Murphy finishings to ensure consistent coverage throughout the heat process. Hair emerges smoothed, detangled, and structurally reinforced against daily thermal and mechanical stress.