Wella SP Volumize Emulsion 1.7 Ounce 50 Milliliters Strengthen your hair structure for added volume and resilience with Wella SP Volumize Emulsion. With Formastrength Complex, this high-absorption volumizer gives the hair more body, strength, and volume and ensures long-lasting stability. The lightweight formula is absorbed instantly and deeply penetrates into the cortex to add and strength and substance to your hair.