Perfect for straight, wavy, curly, coiled and tightly coiled hair. Caviar Anti-Aging Infinite COLOR HOLD Dual-Use Serum is a versatile serum that provides color rejuvenation, heat protection and intense shine. This dual-purpose treatment can be used as a radiance-boosting leave-in treatment or mixed with any Alterna conditioner to transform it into a color-recharging masque. Formulated with our signature Caviar Extract and Dual Capture Complex that provides powerful color protection, this color retention blend leaves hair smooth and hydrated, rejuvenates color vibrancy as well as protects hair from heat up to 450°F. Clinically proven to maintain color vibrancy and shine for 70 days vs. untreated hair. Rejuvenates hair color, vibrancy, shine Turns any Alterna conditioner into a color rejuvenating treatment Intensifies shine Use As a leave-in, apply 2-4 pumps to damp clean hair. Style as usual. To transform your conditioner into a color recharging mask mix 6-8 pumps with any Alterna conditioner. Apply on wet hair and let sit for 3 minutes. Rinse.