- A powerful dual-use serum that provides color rejuvenation and shine. Perfect for straight, wavy, curly, coiled and tightly coiled hair. Rejuvenates hair color, vibrancy, shine. Turns any Alterna conditioner into a color rejuvenating treatment. Intensifies shine. 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 Alterna's 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. Experience transformation after just one use! Inspired by the Science of Skincare for Hair®, Caviar Anti-Aging is Alterna's first comprehensive line of hair care products that address intrinsic (natural aging process), chemical and environmental aging by infusing hair with the finest, most effective ingredients to restore hydration, strength, vibrancy and elasticity for more youthful-looking hair. Every product contains pure Caviar from the roe of non-endangered sturgeon fish, sustainably farmed in France. Luxurious & rich in vitamins, minerals & Omega fatty acids that help restore hair's lipid layer to its optimal state...the key to healthier, younger-looking hair. Free of added SLS/SLES, Parabens, Phthalates, DEA/TEA, & Synthetic Color. Suitable for color-treated hair. 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. Precautions: For external use only. Avoid eye contact.