SCALP STIMULATING SHAMPOO 8OZ. Research Results: Results from a TRI/Princeton controlled hair swatch study including Keranique's Volumizing Shampoo, Volumizing Conditioner and Lift & Repair Treatment Spray:. 169% increase in hair volume and thickness after just ONE use. 136% increase in volume in just 24 HOURS after application. Scientifically proven results for 24-Hour Full Body Volume!. Benefits: Retains shine, boosts body and volume. Protects against cuticle damage. Stimulates the scalp. Features: Rejuvenates hair follicles to keep hair fuller and thicker looking. Lightweight formula improves the effectiveness of scalp treatments. Clarifying formula removes buildup. Menthol increase oxygen delivery to the follicles to promote growth.