I found a product on Amazon.com that intrigues me. SUPER YOUTHAIR. It replaces melanin to the hair chemically that restores the gray to its natural color. I bought some and started using it 2 days ago and I already notice a change from sparkling gray to a reduction in the sparkle to more of a mate brown; and it seems to be working. Does anyone else have experience with this product? The usage instructions on the package are vague and the company website (Youthair.com) requires that it be purchased through them to get further instructions... which seems weird.... and rather quirky to me for a product of this nature.