Scuba dive. DermMatch is water-resistant. It stays on so well you can scuba-dive with it. The diver shown here is wearing Dark Brown. Maybe you don't scuba-dive but do you ever get caught in the rain or the wind? Ever sweat when you jog or exercise? Maybe you'd like to swim in the Caribbean on your next vacation? DermMatch has you covered. 

Not with other products. Colored sprinkles and most sprays will come right off when you comb or brush your hair. They can even fall out when you bend over. Don't even think of swimming with them. All cosmetic products can transfer if you rub into fabrics. Be aware of this around towels and linens. DermMatch launders off if needed. Any shampoo removes it.