Nioxin Volumizing Reflectives Thickening Spray 1.7 oz - is a lightweight volumizing spray designed for fine hair. Use Nioxin Volumizing Reflectives Thickening Spray to make hair styling easier and to add thickness to flat hair. The hair thickening spray provides a powerful hold without leaving behind buildup . BioAMP in the volumizing spray strengthens and thickens the hair from within, helping to create volume, fullness, texture and shine. Nioxin Volumizing Reflectives Thickening Spray does not contain PVP's or drying alcohol to help preserve a healthy scalp.