Goldwell Kerasilk Reconstruct Split Ends Recovery Concentrate 0.9 oz / 28 ml The concentrate rebuilding hair ends from GOLDWELL will help in this. Start a real metamorphosis of the condition of your strands and take care of them from scratch! Mend those split ends with the Kerasilk Reconstruct Split Ends Recovery Concentrate. Infused with Kerasilk and Hyaloveil, this concentrated serum helps to nourish and moisturize the ends of your hair and rejoin the split ends. Provides a protective coat to ends to prevent further damage.