Jerome Russell Spray On Hair Color Thickener is a professional-grade, high-performance cosmetic thinning solution engineered explicitly to deposit natural-looking color while optimizing structural density parameters. Activated simply by shaking and spraying, this advanced deposit-only formula contains no ammonia and requires no harsh chemical developers or peroxides to process. It deeply infuses individual hair fibers and coats the scalp to ensure comprehensive, high-clarity coverage of thinning areas while maintaining the hair's natural moisture boundaries, leaving all natural hair textures exceptionally smooth, conditioned, and enhanced with a fuller, deeply saturated appearance.

• High-performance spray-on hair thickener engineered to deliver rich, uniform coverage with excellent structural protection

• Activated entirely via an easy aerosol spray to bypass the need for harsh chemical developers or moisture-stripping peroxides

• Formulated completely free of ammonia to ensure a comfortable, low-odor coloring process that minimizes structural hair damage

• True-to-tone blending shade provides a beautifully balanced finish that delivers a natural, lively depth to mask thinning spots

• Delivers complete, highly reliable scalp and hair coverage that binds tightly to fine or resistant hair structures

• Minimizes post-color brittleness and styling breakage by maintaining the hair fiber's natural lipid integrity

• Locks down tightly across individual strands to resist premature fading from routine environmental exposure while washing out easily with shampoo

• Safe and highly effective for both men and women across all hair types and textures, offering a seamless root touch-up or thinning-area routine

• Compact spray formulation eliminates product waste and allows for highly customized sectional portion targeting

• 3.5 fl. oz. (100 mL) precision aerosol can ready for home or professional salon use