It's a 10 Silk Express Miracle Silk Leave-In is the silky, strong treatment that stays with you. The world's favorite leave-in conditioner just keeps getting better. Now, the signature It's a 10 leave-in conditioner is available with the power and performance of silk protein. Spray on and comb through wet or dry hair for noticeably amazing shine and smoothness. Tangles slide out effortlessly, while additional conditioners help repair and reinforce strands from root to tip. The result is stronger, longer, shinier locks that respond better to styling and environmental challenges like humidity or dryness. And, like you'd expect from silk, Silk Express Miracle Silk Leave-In delivers a lighter-than-air finish that rinses clean with no buildup or heaviness.