DESIGN ESSENTIALS Silk Essentials Thermal Strengthening Serum

Protect strands from heat damage while boosting resilience with Silk Essentials Thermal Strengthening Serum. Lightweight and easy to apply, it smooths the hair shaft, seals the cuticle, and locks in moisture to enhance softness and manageability. The formula adds a sleek, glossy finish and helps defend against the drying effects of thermal styling. Perfect for wet or dry hair, it absorbs instantly and leaves strands feeling soft, protected, and full of body — never greasy or weighed down.