- Youthair is a color restoring, conditioning treatment for hair that is used by thousands of men to make them look and feel younger. Youthair helps to replace the color that hair loses as it begins to gray. Its unique formula provides long lasting, natural results. Youthair allows you to choose how much or how little gray you want. Within 3 weeks of daily use, hair color will gradually be restored to its natural shade.Its unique formula provides long lasting, natural results Youthair allows you to choose how much or how little gray you want. Within 3 weeks of daily use, hair will gradually be restored to its natural shade. No more complicated, messy dyes. No shade selection to match.Restores natural color gradually. Youthair is a color restoring, conditioning treatment for hair that is used by thousands of men to make them look and feel younger. Youthair helps to replace the color that hair loses as it begins to gray.