DIY TRICK - Your goal: No More Grays‏

Revive the Roots. To mask any silver streaks, focus the pigment on the new growth at your scalp. The bottom half of your hair, which is older and drier, will absorb color much quicker than the roots. Brush a semipermanent dye, like Clairol Natural Instincts semipermanent hair color ($8.99, drugstores), on the top of your head, and in the last five minutes, do the bottom half.