The two non-permanent hair color products that typically receive high reviews are Clairol Natural Instincts and Revlon ColorSilk, according to Consumer Search. Revlon ColorSilk is marketed as a permanent color, though it is demi-permanent; its ammonia-free formula does not damage hair.
Both Clairol Natural Instincts and Revlon ColorSilk offer long-lasting color and good grey coverage.
Natural Instincts is the highest-rated non-permanent hair color by both experts and consumers, according to Consumer Research. Natural Instincts offers only 22 shades, while ColorSilk offers 44. Natural Instincts' shades are glossier, and it is an easy-to-apply product with a processing time of 10 minutes.