Overnight Hair RESCUE instantly penetrates deeply into hair, delivering vital nutrients for transformational results while you sleep. After just one use, awaken to silky, shiny hair that looks and feels remarkably stronger, healthier, visibly rejuvenated. Won't leave residue on your pillow. Micro-sized natural hair proteins and amino acids penetrate and repair hair from the inside. Bio-identical hair lipids restore shine and elasticity while positively charged ions impart softness. Multi-vitamin complex strengthens and enhances the penetration of proteins. Specially blended moisturizing agents repair the damaged shaft and seal the cuticle for lasting results. Clinically proven to improve hair damage by 44%. Overnight Hair Rescue is a PM treatment for hair 2-3 times a week. 3.4 oz.