Yes, this blow-out spray contains silicones, intended to reduce static and aide in wet combing, smooth reduce flyaways, and help with the styling properties of the formula. The silicones in this product were carefully chosen for their benefits to hair, and this blow-out spray was designed to be lightweight and build fullness without heavy build-up. Our products are extensively tested amongst fine-hair consumers, and are proven to be safe and lightweight with continued use. Silicones are widely used in hair care products and provide many benefits to hair, such as smoothing, adding shine, aiding in detangling, etc. Silicones can range from heavy to lightweight and are capable of evaporating much like water without leaving build-up on the hair. Silicones are also considered safe for human use.