Redken Acidic Color Gloss Leave-In Heat Protection Spray, 450°F Thermal Defense & Shine

Redken Acidic Color Gloss Heat Protection Leave-In Treatment Spray is a salon-grade leave-in that conditions, shields color and delivers molecular-level shine while protecting hair from heat up to 450°F.

Designed as part of Redken’s Acidic Color Gloss system, this lightweight spray helps extend the life of color-treated hair while smoothing the cuticle for glossy results. Its acidic pH helps seal hair cuticles, and Invisible Shield Technology works to protect color and reduce heat-related fading and damage during styling. Use it after washing and before heat tools to fortify strands and enhance surface shine without weighing hair down.

How does this spray protect hair during hot styling?

The formula provides robust thermal defense rated up to 450°F so styling with blow-dryers, flat irons, or curling wands generates less structural stress on colored hair. Invisible Shield Technology forms a protective barrier on the hair fiber that helps prevent moisture loss and surface abrasion from heat. Because it’s a leave-in treatment, protection stays active through the styling process rather than rinsing away.

• Heat protection effective up to 450°F for thermal styling
• Invisible Shield Technology forms a protective film on strands
• Leave-in delivery keeps the protective benefits active during styling

Will this help my color look fresher longer?

The acidic pH in the Acidic Color Gloss range tightens and seals the hair cuticle, which reduces color washout and surface dulling. Regular use after shampooing helps lock pigments in and maintain a reflective, salon-fresh finish. While it complements professional color care, combining it with the matching sulfate-free shampoo and conditioner produces the best color-retention results.

• Acidic formula seals cuticle to reduce pigment loss
• Formulated to complement color-safe, sulfate-free routines
• Helps maintain a vibrant, glossy surface between salon visits

What texture and finish should I expect on my hair?

The leave-in spray is lightweight and fine-misted so it distributes easily without leaving residue or weighing hair down. It smooths the hair’s surface for a high-shine, glass-like finish at a molecular level, improving manageability and reducing visible frizz. It’s suitable for both fine and thicker hair types when used sparingly or layered as needed.

• Fine mist for even, non-greasy application
• Creates a smooth, reflective finish and reduces frizz
• Works on multiple hair textures when dosed appropriately

How should I use this product with the rest of the Acidic Color Gloss line?

For best results, start with the Acidic Color Gloss Sulfate-Free Shampoo and follow with the Activated Glass Gloss Treatment and matching conditioner to prepare and nourish the hair. Apply the leave-in spray to towel-dried hair, comb through, then style as usual—blow-dry or use hot tools if desired. Regular combined use helps maintain condition, color longevity, and gloss between salon appointments.

• Use after towel-drying; spray evenly through mid-lengths to ends
• Comb through before heat styling or air-drying
• Pair with Acidic Color Gloss shampoo, treatment, and conditioner for optimal results

Who is this for: Redken Acidic Color Gloss Heat Protection Leave-In Treatment Spray is aimed at people with color-treated or shine-focused hair who want salon-quality gloss, improved manageability and thermal protection during styling. It suits those seeking a lightweight, leave-in solution to guard color, smooth the cuticle and boost surface shine without heavy buildup.