Summer is often the most challenging season for colored hair. After a few weeks of sun exposure, many notice duller color, altered highlights, or drier lengths.
Sun, salt, and chlorine progressively weaken the hair fiber, which is already sensitized by coloring. As a result, hair loses its shine, becomes more porous, and dehydrates more quickly. Blond, highlighted, bleached, or colored hair is generally the most vulnerable during the summer.
Fortunately, a few simple steps can effectively protect your color and keep your hair supple and shiny throughout the summer season. In this article, discover why the sun weakens colored hair, what the most common mistakes are, and how to adopt a suitable routine to permanently protect your color.
Why does the sun weaken colored hair?
Colored hair is naturally more sensitive to external aggressions.
Coloring changes the structure of the hair fiber to allow pigments to penetrate the hair. The fiber then becomes more vulnerable to UV, salt, and chlorine.
The effects of UV on colored hair
UV rays cause progressive oxidation of the pigments present in the hair fiber.
Result:
- color loses intensity
- highlights change
- hair becomes dull
- lengths dry out more quickly
- ends become more fragile
Hair can also lose its suppleness and become more difficult to style after several exposures.
Light or bleached hair is often the most sensitive.
Why does colored hair become drier in summer?
During the summer, hair undergoes several aggressions simultaneously.
The combination of sun + salt + chlorine strongly accentuates the dehydration of the lengths.
The sun weakens the hair fiber
UV rays progressively alter the keratin present in the hair.
The fiber then becomes:
- more porous
- drier
- more fragile
- more prone to breakage
Colored hair also retains natural hydration less effectively.
Salt and chlorine worsen dryness
After several swims, salt and chlorine further accentuate the damage.
Salt absorbs part of the water present in the hair fiber, while chlorine removes part of the hair's natural protective film.
Result:
- lengths become rough
- hair loses its softness
- curls are less defined
- ends break more easily
To learn more, also discover:
- Does salt really damage hair?
- Is chlorine dangerous for hair?
Why does color change during the summer?
After several exposures to the sun, some colors become duller or change their highlights slightly.
Pigments progressively oxidize
UV rays progressively degrade the pigments present in the hair fiber.
Some colors then become:
- fader
- warmer
- less uniform
- less shiny
Blond hair can yellow, while some brown colorations lose depth.
Chlorine can alter some highlights
Chlorine further weakens already sensitized hair.
In some people, especially with blond or very light hair, greenish highlights can appear after repeated swims.
What types of colored hair are most sensitive to the sun?
Not all colorations react in the same way.
The most fragile hair in summer
The sun sensitizes more:
- bleached hair
- balayage
- blond highlights
- light colored hair
- porous hair
- curly colored hair
Textured colored hair often requires even more hydration during the summer because it is naturally drier.
How to protect your colored hair from the sun?
A few simple steps can preserve color's vibrancy for longer.
1. Protect hair before exposure
Protection begins before the beach or pool.
Use a leave-in treatment
Shaeri Daily Care helps maintain the hydration of lengths before sun exposure.
It helps to:
- preserve hair's suppleness
- limit dehydration
- facilitate detangling
- reduce frizz
Its light texture is particularly suitable for summer routines.
Apply oil to the ends
Shaeri Care Oil helps protect lengths and ends from dryness.
It helps to:
- nourish the fiber
- improve softness
- limit frizz
- preserve shine
2. Wet your hair before swimming
This simple gesture limits the absorption of salt and chlorine.
Already wet hair absorbs fewer aggressive substances.
Before entering the water:
- rinse hair with clear water
- thoroughly dampen the lengths
- apply a light treatment if necessary
To learn more, also discover: Should you wet your hair before swimming?
3. Limit direct sun exposure
Prolonged exposure further weakens colored hair.
On very sunny days, it can be useful to:
- tie up your hair
- opt for protective hairstyles
- wear a scarf or hat
- avoid prolonged exposure during the hottest hours
Also discover: Protective hairstyles for summer
4. Rinse hair after the beach or pool
Rinsing is essential to prevent salt or chlorine from remaining on the hair fiber.
Even without shampoo, rinsing hair with clear water helps to:
- limit dehydration
- preserve softness
- avoid rough hair
- reduce residue
How to hydrate colored hair in summer?
Colored hair needs regular hydration throughout the summer season.
Use a gentle shampoo
Overly aggressive shampoos increase dehydration and accelerate loss of shine.
Shaeri Nourishing Shampoo helps cleanse hair while preserving its natural hydration.
It is particularly suitable for:
- colored hair
- dry hair
- sensitized hair
- curly hair
Regularly use a nourishing mask
After several sun exposures, lengths need to be deeply nourished.
Shaeri Intense Mask Treatment helps to:
- nourish dry hair
- improve suppleness
- repair sensitized lengths
- restore softness
- preserve shine
Regular use helps maintain a brighter color and more supple hair.
Mistakes that damage colored hair in summer
Certain habits strongly accelerate color degradation.
The most common mistakes
It is best to avoid:
- leaving salt to dry on hair
- forgetting to rinse lengths after the pool
- using overly stripping shampoos
- excessive use of heated styling tools
- neglecting moisturizing treatments
- exposing hair for several hours without protection
What routine should you adopt for colored hair in summer?
A simple but regular routine is often enough to preserve color.
The ideal summer routine
- Protect hair before exposure
- Wet hair before swimming
- Rinse lengths after the beach or pool
- Use a gentle shampoo
- Apply a hydrating mask regularly
- Protect ends with a light oil
To simplify your summer routine, also discover: Minimalist hair routine on vacation
Frequently Asked Questions
Can the sun lighten colored hair?
Yes, UV rays can progressively lighten hair and accelerate pigment fading.
Why does my color become dull in summer?
Sun, salt, and chlorine weaken the hair fiber and progressively alter the pigments present in the hair.
Can you go to the pool with colored hair?
Yes, but it is important to protect your hair before swimming and rinse it thoroughly afterwards.
