Heat protectant spray: why you need it and how it works

Blow-drying, straightening, or curling daily, and after a few weeks, your ends feel dry and coarse. Your hair gets frizzier, breaks more easily, and loses its shine. Heat is one of the biggest causes of damaged hair, but you don't have to put away your hairdryer or straightener to avoid it.

On this page, we explain what heat does to your hair, how a heat protection spray works, how to use Phytorelax Keratin Liss Heat Protection Spray, and what you can realistically expect.

What does heat do to your hair?

The outer layer of your hair consists of cuticles that overlap like roof tiles. As long as they lie flat, your hair feels smooth and shiny. At high temperatures, the moisture in your hair evaporates quickly, the cuticles open up, and the hair fiber becomes dehydrated.

If this happens time after time, your hair becomes dry, brittle, and frizzy. Especially the ends, which are the oldest and most frequently heated, take a beating.

How does a heat protection spray work?

A heat protection spray creates a thin, protective layer around every strand of hair. This layer absorbs some of the heat and allows the hairdryer or straightener to glide more smoothly over your hair, so it dries out less and is less prone to damage.

Phytorelax Keratin Liss Heat Protection Spray builds this protection using three types of ingredients:

  • Silicones (amodimethicone copolymer): form the protective, smoothing layer and add shine, even in humid weather
  • Avocado oil: nourishes and softens the hair fiber
  • Hydrolyzed keratin: keratin is the building block of your hair; in this form, it attaches to the hair fiber

Step by step:

  1. Wash your hair and towel-dry it
  2. Spray onto the lengths and ends; skip the roots
  3. Comb through your hair so the spray is evenly distributed
  4. Blow-dry and style as usual
  5. If using a straightener or curling iron on dry hair, spray again lightly before styling

Part of the Keratin Liss line

The spray is part of the Phytorelax Keratin Liss line for frizzy and unmanageable hair. If you want to enhance the effect, you can combine it with:

Who is it suitable for?

Phytorelax Keratin Liss Heat Protection Spray works best if:

  • You regularly blow-dry, straighten, or curl your hair
  • Your hair is frizzy or unmanageable, especially in humid weather
  • You have dry, coarse ends due to heat
  • You are looking for a spray that can be used on both damp and dry hair

The spray is also suitable for colored hair and fine hair: for fine hair, use a small amount only on the lengths.

What can you expect?

Realistic expectations are important. Here is what you will notice:

  • Immediately after styling: smoother, softer hair with more shine and less frizz
  • In humid weather: your hair stays in style longer and frizzes less
  • Long-term: with regular use, your ends remain more supple; a protective spray makes heat less damaging, but not harmless, so choose the lowest possible temperature setting

Phytorelax Keratin Liss Heat Protection Spray

Phytorelax Keratin Liss Heat Protection Spray protects your hair against the heat of blow-dryers and straighteners, with avocado oil, hydrolyzed keratin, and silicones for shine and smoothness. Paraben-free, in a 200 ml bottle.

Contains alcohol: do not use near open flames. Before use, read the product information on the product page.

View Phytorelax Keratin Liss Heat Protection Spray →

Frequently asked questions

Do I apply the spray to wet or dry hair?

Both work. On towel-dried hair before blow-drying, or on dry hair before straightening or curling. Focus on the lengths and ends.

How much spray do I need?

A few sprays over the lengths is enough. Too much product will weigh your hair down, especially if it is fine.

Does the spray make my hair greasy?

No, not with normal use. Skip the roots and use a small amount for fine hair.

Why does it contain silicones?

Silicones form the protective layer around your hair. They allow the hairdryer and straightener to glide more smoothly over your hair, make it smooth, and prevent frizz in humid weather.

Can I use the spray every day?

Yes. Use it every time you style your hair with heat.

Is the spray suitable for colored hair?

Yes, the spray is suitable for colored and treated hair.

Does the spray contain alcohol?

Yes. Therefore, do not use it near open flames, and let it dry for a moment before using a hot straightener.