Alterna Caviar Anti-Aging Dual-Use Serum Infinite Color Hold 1.7 Ounce 50 Gram advanced leave-in treatment that works to infuse hair with moisture and nutrients to boost radiance and recharge color vibrancy. This protects the hair from dryness, UV damage, and environmental toxins, it's fortified with anti-aging Caviar extract to help prevent fading and weakness. Expect glossy and revitalized hair with long-lasting color.