What is a heat-protectant spray?

What is a heat-protectant spray?

Robert Steinken (Celebrity Hairstylist) gives expert video advice on: What is a hair serum? and more...

A heat-protectant spray is something you put on your hair after you've shampooed and hopefully conditioned your hair. You put that on your hair, it coats the hair strand so that when you're blow-drying it, or putting an iron on it, it just helps protect the hair shaft and makes it look in better condition.