A powerful dual-use serum that provides color rejuvenation and shine. Perfect for straight, wavy, curly, coiled and tightly coiled hair. Key Benefits: Proven to maintain color vibrancy and shine for up to 70 days. * Leaves hair hydrated, smooth, and shiny. Protects color treatments from UV-fade when used as a leave-in treatment. Provides heat protection up to 450°F/232°C. ** *Based on a study vs. untreated hair when used as a regimen with Infinite Color Hold Shampoo, Conditioner, and Dual-Use Serum. **vs. untreated hair. Dermstore has partnered with Flex to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA). This means you can now use your HSA or FSA debit card to buy Alterna products with pre-tax dollars, resulting in net savings of 30-40%, depending on your tax bracket. Eligible for HSA/FSA with a letter of medical necessity at checkout. From dermatologist-recommended treatments to solutions for chronic skin conditions like acne, eczema, and rosacea, these products are both effective and eligible. | Alterna CAVIAR Anti-Aging Infinite Color Hold Dual-Use Serum, 1. 7 oz | Dermstore