Typical volumizing products use hair-drying ingredients (alcohol, salt, and drying resins) that dry out and force open the hair's outer protective layer. When the cuticles are rough and raised, the hair strands cannot lie flat, creating a fluffy and voluminous hair effect. However, opening the cuticle is very harmful and causes hair dehydration, frizz, and brittleness. Xtra Large uses a completely new volumizing technology: a weightless but voluminous blend of polymers (reinforced with fiber-reinforcing BAMBOO) that simulates a lifted outer cuticle layer, but leaves the hair's essential cuticle layer smooth, intact and moisturized. The result? Instantly get defined, sexy, "naked" volume, firmness, strength and hold without compromising hair health.