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- Heat protectants help prevent damage while heat styling, making them a necessary part of styling.
- They work by forming a very thin film over the follicle that both prevents damage and smooths hair.
- We spoke to professional hairstylists to identify the best heat protectants in 2021.
If you frequently use heat-based tools or dryers to style your hair, heat protectants are an absolute necessity. These sprays add a barrier that coats the hair follicle so that heat-styling tools don’t burn your strands or zap away moisture.
“Often the product will have a formula that will coat the hair shaft and offer heat protection up to 428-degrees,” says Penny James, a trichologist and owner of Penny James Salon. “Then a smoothing effect on the cuticle to give the shine.”
When you continuously use high heat on your hair, it can cause the hair’s keratin proteins to break down and the hair cuticle to crack. It can also cause all moisture to evaporate from the inside-out. For color-treated hair it can even cause the pigments to adopt an unflattering brassy tone. Heat protectants work by forming a very thin film over the follicle of the hair that acts as a protective barrier.
We spoke to James and celebrity stylist Dimitris Giannetos, who regularly works with Camila Cabello and Meghan Trainor, to find out how you should be using heat protectant sprays in order to make your style last. You can check out their tips here, but first, read on for the best heat protectant sprays we’ve tested.
These are the best heat protectant sprays in 2021: