Is Your Hair Ready for Summer? How to Protect It from Sun and Heat

The best way to protect your hair from the sun is to lock in moisture, use physical protection – such as a hat or a good UV sunscreen – and to lay off the heat styling. Remember, you're playing the long game. Warmer weather doesn’t suddenly “damage” your hair overnight: it's the daily exposure to sun, heat, humidity and frequent washing that comes with long, sunny days that can damage your hair.

 

Does the sun damage your hair?

Yes, sun exposure can affect your hair over time by weakening its structure and drying it out in a similar way to bleaching it. This makes your hair more vulnerable to damage through brushing and combing, too.  

How UV exposure affects the hair structure

Hair is made up of proteins, and UV rays can oxidize and break these down over time, causing dry, brittle and breakable strands. They also lift the outer cuticle layer – which resembles overlapping scales when viewed under a microscope – and this can leave your hair feeling rough and looking dull. Some studies on how the sun damages hair suggest UV exposure can cause up to four times more damage than heat styling through repeated occurrences.

 

How summer conditions affect your hair

Along with sun exposure, heat, humidity and frequent washing all change how your hair holds moisture and behaves day to day – so you'll need to adapt your usual routine to deal with these conditions. 

Heat and moisture loss

Hot temperatures, whether from the weather or styling tools, can dry out your hair faster than usual. When moisture is lost, hair tends to feel rougher, tangle more easily and loses that soft, smooth finish. A hydrating product like our Dove Damage Therapy Bond Shield 10 in 1 Serum Mask can transform the look and feel of thirsty, brittle locks.  

Humidity and frizz formation

Humidity pulls moisture from the air into your hair, which can cause it to swell and lose definition. If you’ve ever stepped outside and felt your style change instantly, that’s heat and humidity hair damage in action, especially for wavy or curly textures. 

For frizzy hair, products designed to add moisture are key – since moisture imbalance is how frizz happens in the first place. Try Dove Damage Therapy Anti-Frizz & Smooth Shampoo for silky-smooth curls with every wash.

Sweat and frequent washing impact

More time outdoors usually means more sweat and more washing. While that’s completely normal, shampooing too often can strip away the natural oils that help keep your hair balanced.

A hair care system like Dove Oxygen Moisture Shampoo and Oxygen Moisture Conditioner is the ticket if you want beautiful, healthy-looking hair that isn’t weighed down, even if you wash frequently. It features Oxyfusion technology that gives hair some volume, fulness and natural bounce.

Use protective products (UV + hydration)

Look for products that offer UV protection for hair while also helping maintain moisture. Think of this as the haircare version of sunscreen – sometimes referred to as hair sunscreen. A system like the Dove UV Repair & Glow Shampoo and Dove UV Repair & Glow Conditioner helps gently cleanse while supporting hydration and protection, especially during periods of regular sun exposure.

For a more focused look at how daily care supports UV defense, you can explore how to protect hair from sun and UV damage, a short guide that specifically highlights how the Scalp + Hair Therapy range supports everyday protection. 

Cover and shield hair outdoors

Simple habits like wearing a hat, tying your hair up loosely, or seeking shade during peak sun hours reduce direct exposure. This kind of physical protection is one of the easiest ways to support your hair throughout the day. 

Limit excessive heat styling

Summer already brings enough heat, so give your styling tools a break as often as possible. Letting curls air dry, styling straight hair into a loose bun, or using larger rollers for shape are all easy alternatives. If you do reach for the heat tools, follow guidance to protect heat damaged hair to help reduce the impact. 

What is hair sunscreen and do you need it?

Hair sunscreen refers to products designed to help protect your hair from UV exposure, much like skincare protects your skin. Add it to your daily routine for maximum sun protection.

How UV protection for hair works

UV protection products work by forming a light layer over the hair that helps shield it from environmental stress. This helps reduce moisture loss, protect the cuticle, and maintain shine. Products like the Dove UV Repair & Glow Bi-Phase Spray combine lightweight texture with protective benefits, making them easy to use throughout the day.

When to use protective products

You don’t need to save these products just for beach days. If you’re spending extended time outdoors, commuting in the sun or even just sitting near a sunny window, adding protection can help. 

 

Summer hair routine swaps that make a difference

Small changes to your routine can help your hair stay balanced, hydrated and easier to manage throughout the summer. Switch up your conditioner, change how often you shampoo and look at hydrating products.

Lighter hydration vs heavy conditioning

In summer, heavy products can sometimes leave hair feeling weighed down, especially when heat and humidity are already adding buildup at the roots. Instead of layering rich creams or heavy conditioners too often, it can help to focus on lighter hydration that supports both your scalp and hair without leaving a coated feel.

A lightweight scalp-focused product like Dove Derma Scalp Barrier Repair Scalp Serum can fit into this routine well. Developed with dermatologists, this 3-in-1 serum helps regenerate the scalp’s protective moisture barrier while relieving dryness, tightness and discomfort. Simply massage two droppers onto your wet scalp after washing and conditioning.

Adjusting washing frequency

If you’re washing your hair more often due to sweat or outdoor activity, consider focusing shampoo on the scalp rather than all the way through to the ends. And when conditioning, do the reverse: focus on the ends to avoid overloading the scalp. This helps maintain moisture where you need it without over-stripping your hair or creating build-up at the roots.

Managing frizz in humidity

Frizz often comes from moisture imbalance. When hair is too dry, it tends to pull moisture from the air, which can cause swelling, puffiness and loss of definition in humid weather. The goal is to keep hair hydrated and protected without coating it in heavy products that flatten movement.

One way to do this is by layering lightweight moisture and UV protection into your routine, especially before spending time outdoors. Dove UV Repair & Glow Bi-Phase Spray helps hydrate hair while defending strands against everyday UV exposure, which can weaken the hair fiber and make frizz harder to manage over time. 

The lightweight formula combines the freshness of a mist with the nourishment of oils, including coconut and apricot oils, so hair feels softer and smoother without becoming greasy or weighed down. Just spray evenly onto damp hair.

 

How to repair sun-damaged hair

If your hair starts to feel dry or brittle after time in the sun, focusing on hydration and gentle care can help repair sun damaged hair. While you can’t fully reverse damage, you can improve how your hair looks and feels.

Signs your hair needs repair

You might notice your hair feels rough, looks dull, tangles more easily, or loses its usual shine. Color fading can also be a sign that your hair has been exposed to a lot of sun.

How to restore moisture and strength

Start by reintroducing moisture with hydrating shampoos, conditioners, and occasional masks. Products like the Dove UV Repair & Glow Radical Recovery Hair Mask can help replenish lost hydration and support the appearance of stronger, smoother hair over time.

For more targeted guidance, explore dedicated collections for sun damaged hair such as our UV Repair and Glow range, to support recovery without overcomplicating your routine.

Protect and nourish your hair every day with Dove hair care products for daily protection, gentle care designed to defend against summer stressors.