Protect and perfect your hair with Design Essentials STS Express Thermal Therapy Leave-In Sealant, a heat-activated formula designed to seal in moisture, smooth the hair cuticle, and provide a flawless finish when using thermal tools. Whether you're blow-drying, flat ironing, or curling, this professional-grade leave-in enhances the styling process while minimizing damage and maximizing shine.
Formulated with advanced Strengthening Thermal System (STS) technology, this sealant helps guard against heat stress and environmental damage, all while boosting softness and manageability. It works by smoothing the hair surface, reducing frizz, and sealing split ends—leaving your strands with a sleek, silky feel that lasts. Ideal for all hair types, including textured, chemically-treated, and color-treated hair, it supports healthy styling without sacrificing strength or moisture.
Lightweight and non-greasy, this thermal sealant can be used as part of your regular styling routine to maintain polished, frizz-free looks day after day. Free from parabens and safe for all hair types, it’s the perfect companion for achieving salon-level smoothness and protection at home.
Heat-activated sealant that protects hair from thermal damage while delivering long-lasting smoothness and shine.
STS Express formula strengthens and seals the cuticle, locking in moisture and reducing the appearance of split ends and breakage.
Minimizes frizz and improves manageability, making it easier to straighten, curl, or style your hair with less heat exposure.
Lightweight, non-greasy formula ideal for all textures—including natural, relaxed, color-treated, and keratin-treated hair.
Paraben-free and designed for professional results, this leave-in makes heat styling safer, faster, and more effective.
