Beautiful hair even in sunny times

Why do chlorine and sun damage hair?

Sun and chlorine can have devastating effects on hair structure during the summer. Intense sun exposure penetrates the hair shaft and damages the protein structure that is crucial for strength, elasticity and shine.

Since hair is made up of about 65 to 95 percent of the protein keratin, its breakdown quickly leads to brittle, dull hair. The hair surface becomes damaged and loses elasticity. People with light, sensitive hair are particularly at risk because they contain less melanin, which acts as a natural shield against ultraviolet radiation.

UVA rays penetrate deeply and fade colour, while UVB rays attack the outer structure and make it brittle.

Chlorine also poses a major threat to hair. By removing the natural protective layer, it causes moisture loss and leaves hair dry, rough and porous. The combination of chlorine and sun is especially problematic. Thorough rinsing with fresh water after swimming can help remove harmful residues.

These residues can literally strip pigments from dyed hair and often lead to loss of elasticity and shine. For blond hair there is also a risk of a greenish tint when hair reacts with oxidised metals, such as copper in pool water.

Why do I lose more hair in summer?

We lose between 50 and 100 hairs daily — this is part of the natural hair cycle and is generally harmless. Still, many people notice increased shedding in late summer and autumn.

A key factor is the intense sun exposure in summer. Ultraviolet radiation can damage hair structure, making hair brittle and straw-like and more prone to breakage. Fine hair is particularly affected because UV rays irritate not only the hair but also the scalp and hair roots.

Such damage can cause hair to move faster from the growth phase (anagen) into the resting phase (telogen). This seasonal shedding usually lasts only a few weeks and typically resolves on its own.

Another summer factor is the frequent contact with salt water and chlorinated water, whether in the sea or in pools. Both substances attack the hair’s natural protective layer, weakening it and making it more prone to breakage. It loses elasticity and snaps more easily. Frequent showering and hair washing to remove sweat can also dry out hair and scalp.

Additionally, heat and the increased sweat production in summer can clog scalp pores. This can affect hair follicles and hinder the growth of new, healthy hair. A changed diet in the warm season can also play a role, especially if certain nutrients essential for hair growth are lacking. For example, a diet or less nutrient-rich eating habits before the bathing season can affect hair growth.

Dyeing hair before holidays: a good idea?

It depends on several factors like hair colour, length of stay and your expectations. For those who want to cover grey roots, a root touch-up before travelling can make sense. Only the roots — not the whole hair — should be dyed to protect the lengths, as sun and salty water can further stress the ends.

If you plan a completely new look, however, it is better to wait until after the holiday. Freshly dyed hair is especially sensitive and reacts more strongly to sunlight and salt water. Intense sun exposure can make new colours fade quickly and dry out the hair — even if you use UV protection products. If you decide to colour your hair, do it at least one month before your holiday to protect colour intensity and hair health.

What do hair need in summer?

In summer they need special care to withstand salt water and heat. A holistic preparation starts from the inside. Supplements like biotin, keratin, zinc, selenium and B vitamins strengthen hair from within and make it more resilient to external influences.

Special hydrating summer care products such as conditioners and masks are essential. They provide intense moisture and protect hair from drying out due to salt water.

Protection from ultraviolet rays is also important; the sun can not only fade hair colour but also dehydrate and make hair brittle. Hair sprays with UV filters, applicable on dry or damp hair, protect against these effects.

For extra protection, you can massage a little coconut oil into the hair to create an additional protective layer. Alternatively, treat only the ends with oil to keep them supple.

The scalp should not be forgotten in summer. A hat or cap protects not only the hair from UV rays but also helps prevent sunburn. A head covering is especially recommended for outdoor sports. If you prefer not to wear headgear, you can alternatively apply sunscreen to protect against UV rays.

How often to wash hair in summer?

In summer the question of how often to wash hair often arises because higher temperatures and increased sweating can stress the scalp. Indeed, we sweat more in warm weather, which makes hair become greasy more quickly. At the same time, sun and frequent washing dry it out faster and make it more vulnerable to damage.

It is recommended not to shampoo hair more than two to three times a week in summer to prevent excessive drying. Between washes, dry shampoo is a good solution: it refreshes hair, reduces oiliness and gives a pleasant scent without unnecessarily stressing the hair structure. This keeps hair well-groomed and smooth even without daily washing.

Which shampoo in summer?

A simple, conventional shampoo is often not enough, as it does not address the specific needs of hair at this time of year. Mild shampoos with hydrating ingredients such as urea, glycerin, panthenol, aloe vera or lactic acid are recommended. These ingredients supply hair with moisture, strengthen the hair structure and make it more resilient to external influences.

For fine, dry or curly hair, this extra care is particularly important in summer. In addition, hair oils with plant extracts can protect hair from harmful environmental influences and make it smooth and shiny. There is a selection of high-quality shampoos and hair oils specifically tailored to summer needs that care for hair optimally.

Radiant summer mane: how to keep your hair healthy despite sun and sea

• Use special moisturizing shampoos and conditioners to maintain moisture levels in your hair. These products help minimise the drying effect of sun and salt water and keep your hair supple.
• A rich hair mask once a week gives your hair the moisture it needs and protects it from external influences. Choose a mask that suits your hair type for maximum care.
• Hair oils are a must in summer. They provide valuable nutrients and protect against UV rays and heat. A few drops massaged into the ends work wonders and make hair shine.
• Coloured hair is particularly susceptible to UV rays that fade colour. Wear hats or use UV-protective sprays to preserve colour intensity.
• A hat or scarf protects not only your skin but also your hair from UV rays, which can damage hair structure. This helps prevent breakage and drying out.
• Wear your hair in loose braids or a bun. This way hair is less exposed to wind and sun, reducing mechanical stress.
• Rinse off salt or chlorine after a day at the beach or pool and then use a moisturizing hair treatment to restore lost moisture.
• In summer it is advisable to let hair air-dry. If you do use a hair dryer, keep your distance and use the lowest heat setting to avoid additional stress.
• Curly and kinky hair needs moisturizing and frizz-control products in summer. Straight hair benefits from lighter, hydrating products that do not weigh it down.
• Use hair care products with integrated UV protection to shield hair from harmful sun rays. These products form a protective barrier and help prevent moisture loss.
• Summer stresses hair and split ends can appear quickly. A regular trim every 6–8 weeks helps prevent split ends and keeps hair healthy.
• Adequate hydration has a positive effect on skin and hair. Also pay attention to a balanced diet with vitamins and minerals to keep hair healthy.
• Alcohols in hair sprays dry hair out further. In summer, choose alcohol-free styling products to avoid unnecessary stress on the hair.
• Moisten your hair with clear water before going into the sea or chlorinated water. Already wet hair absorbs less salt or chlorine because it is less absorbent.

Proper hair care in summer is crucial to protect hair from UV rays, chlorine and salt, while providing moisture and shine. With suitable products and regular moisturising you can avoid damage and keep hair healthy and strong. A light hat or scarf can also serve as a stylish protection against excessive sun exposure.