What are heat protectants for hair?
We love our curling irons, straighteners and blow dryers—but all that heat can take a toll on our hair if we’re not careful. That’s where heat protectants come in. These products help form a barrier between your hair and hot styling tools, minimising damage and keeping your strands smooth, shiny and strong.
Much like sunscreen protects your skin from UV damage, a heat protectant shields hair from high temperatures caused by tools like flat irons or curling wands. Many of these products come in spray, cream or serum forms and are applied before styling to lock in moisture and prevent breakage.
With temperatures reaching well above 180°C during styling, heat can dry out the hair, cause colour fading, and lead to split ends and breakage—especially in bleached or colour-treated hair. Regular use of heat tools can also compromise the hair cuticle, creating a rough texture and dull finish.
But don’t ditch your tools just yet. The right product can protect your hair while enhancing its softness and bounce. Many options even include conditioning benefits to nourish as you style.
Do heat protectants work?
Yes—they really do. Heat protectants form a thin, protective coating over the hair shaft. This layer reduces direct exposure to high temperatures and distributes heat more evenly, so your hair warms up gradually rather than all at once.
These products also help lock in hydration, prevent moisture loss and keep your hair looking smooth and healthy. Many are infused with lightweight oils or silicones, such as argan or Moroccan oil, to soften strands and control frizz. Whether applied to damp or dry hair, they’re a must-have for every styling routine.
What are the best heat protectants?
The best heat protectants will depend on your hair’s needs. Look for products that contain key ingredients such as:
- Silicones: Help seal in moisture and protect hair from heat.
- Anti-frizz agents: Lock in hydration for sleeker results.
- Keratin: Rebuilds strength and supports shine.
- Natural oils: Such as argan, coconut or grapeseed for hydration and softness.
Choose a format that works best for you—sprays offer lightweight application, while creams and serums work well for thicker or curly hair. Popular names at Redken, Davroe, Muk and De Lorenzo offer a variety of protectants to suit all hair types.
How to use heat protectants?
Whether you’re prepping for a blowout or straightening your hair, proper application ensures protection:
- Towel dry hair before applying to damp strands.
- Spray evenly from roots to ends, avoiding the scalp. Use a small amount if using a cream or serum.
- Comb through to distribute the product.
- Use your tool on a lower heat setting and avoid holding it on one section for too long.
Once your style is complete, follow up with a Hair Shine Products mist or finishing spray to lock in your look and add brilliance.
How long does heat protectant last?
Heat protectants are most effective when applied just before styling. On average, they last for about four hours, depending on the formula. If you re-style later in the day, it’s a good idea to reapply to maintain full protection.
Be sure to choose a product that matches your routine—some also offer benefits like faster drying time or added smoothness to help streamline your daily hair care.
What should you look for in a heat protectant spray?
For best results, select a heat protectant that suits your specific hair type. If your hair is oily or fine, go for a lightweight spray that won’t weigh it down. If your hair is dry or coarse, choose a formula rich in oils to hydrate and restore moisture.
Coloured hair requires a product that’s safe for chemically treated strands and can help maintain vibrancy. For curls and waves, creams or serums can tame frizz and offer extra definition. Look for amino acids, silicones and moisture-rich ingredients for optimal heat protection and strength.
Find your perfect match at My Haircare & Beauty
No matter your hair type or styling routine, My Haircare & Beauty offers a wide selection of thermal protectants to help defend against heat damage while delivering salon-worthy results.
Browse our collection of sprays, creams, serums and Bundles from leading brands in haircare. We also stock hair treatment essentials, Buy Conditioner, tools and styling aids to help you achieve your ideal look.
De Lorenzo Extinguish is a superb heat protector to take into consideration. Aloe vera, green tea extract, and sunflower oil are among the natural elements in this product that combine to protect your hair from heat damage. Your hair gets more gloss and less frizz as a result.
Last but not least, Keune Heat Protect Spray is a premium heat protector that provides outstanding defence against heat damage. Argan oil and vitamin E are among the nourishing elements it includes, which work to fortify and shield your hair from the inside out.
Your hair will suffer if you use a hair dryer or straightener without thermal protection because the high temperatures can harm it severely. The heat from using these instruments on your hair may enter the hair shaft, evaporating the moisture inside. Your hair may become dry and brittle as a result, breaking off and developing split ends. Furthermore, the high temperatures might weaken your hair even further by causing the proteins in it to disintegrate.
