Sun, heat, swimming, salt... summer is a joyful season, but also a real ordeal for your hair. Many of us remember to protect our skin before going out, but forget that hair is like skin: it also needs to be protected from summer aggressions.
Hair and sun: how to protect it well this summer
Jul 16, 2026
Sun, heat, swimming, salt... summer is a joyful season, but also a real test for your hair. Many of us think about protecting our skin before going out, but forget that hair is like skin: it also needs to be protected from summer aggressions.
Understanding the risks and the right steps to take to keep your hair soft, shiny, and healthy until back to school.
Why does summer weaken hair so much?
Repeated exposure to sun, heat, and sea or pool water has a cumulative effect on the hair fiber. The result: drier, less soft, less supple, and duller hair over the weeks.
Salt, an often-forgotten enemy
We often think about protecting ourselves from the sun, but we underestimate the effect of salt on our hair. Salt absorbs water present in the hair fiber, which leads to:
- drier or rougher hair
- a loss of shine
- more frizz and tangles
- more fragile ends
An even more marked impact on colored hair
If you have colored hair, even more vigilance is required. By opening the hair cuticle further, salt facilitates the loss of hair pigments. Your color can then lose its radiance much faster than usual.
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Good habits to adopt this summer
Good news: a few simple habits are enough to significantly limit this damage.
1. Wear a hat The simplest and most effective way to limit direct exposure of the scalp and lengths to UV rays.
2. Apply a protective treatment before going out in the sun or swimming creates a barrier that limits the aggression of salt, chlorine and UVs on the fiber.
3. Rinse with clear water after each swim After a swim in the sea, rinse your hair with clear water as soon as possible. The salt that remains on the fiber continues to dry out the hair and scalp, and can cause the color to fade.
4. Rehydrate At the end of the day or after rinsing, rehydrate your hair with a suitable hydrating shampoo that will compensate for the water loss caused by the sun, salt, and chlorine.
5. Finally, nourish your hair fiber with a conditioner rich in noble fatty substances, which will restore softness and suppleness to the fiber and also facilitate styling.
Summary of good habits after a day in the sun
To summarize, here is the routine to adopt as soon as you return from the beach or pool:
- Rinse your hair with clear water after each swim
- Apply a treatment before and after sun exposure
- Rehydrate and nourish the hair fiber regularly throughout the summer
It's simple, I promise: a few minutes are enough to preserve the health of your hair and fully enjoy your summer, without sacrificing softness or shine.
