What Is Product Build-up?
Any hair product—be it conditioner, serum, hairspray, or something else—coats the hair cuticles. This fine layer can be beneficial in some cases. Conditioners and serums strengthen the hair shaft and protect it from heat damage and pollution.
However, when you have several layers of product on your hair, you'll see negative effects. A completely sealed cuticle can't absorb any nourishment, and the build-up weighs down hair over time.
Hairspray in particular can leave a white dandruff-like residue behind, which builds up and leaves the hair unmanageable. It's essential that product build-up be reduced to ensure nourished, manageable hair.
How Can I Remove Hairspray and Reduce Product Build-up?
Standard shampoos can remove a normal quantity of oil and particles such as dead skin. But alone, such shampoos aren't strong enough to remove product build-up. You'll need to use a clarifying shampoo or scalp scrub to achieve a deep clean.