Infuse your thinning hair with thick full-bodied volume with this Alterna Bamboo Men Thickening Gel-Lotion With SPF 15 Shield. It has a protective formula that protects scalp from sun damage. Boost your look with this Alterna Bamboo Men Thickening Gel-Lotion With SPF 15 Shield. Its quick drying waterless & water resistant formula makes it perfect for even the most sensitive scalps.