How To Nourish Your Scalp During Summer Heatwaves

The blazing summer sun can be relentless on your face and arms, but have you considered what it’s doing to your scalp? While you diligently apply sunscreen to your face and body, you might forget about your head until the burning, itching, and flaking begin. 

Three women out in the sun, laughing

Intense heat creates the perfect storm for scalp distress, with increased oil production, sweat buildup, and direct UV exposure combining to leave your scalp crying out for relief. Learning how to nourish your scalp during summer heatwaves will alleviate discomfort and boost your hair’s vitality throughout the hottest months of the year.

Hydrate Inside and Out 

You should drink plenty of water throughout the day to maintain the moisture balance your scalp needs. However, external hydration is still vital.

Apply a lightweight, water-based scalp serum or mist before heading outdoors. Look for products with hyaluronic acid or aloe vera, which draw moisture to the scalp without creating heaviness.

Spray these treatments directly onto your scalp in sections, massaging gently with your fingertips so it properly absorbs and circulates. According to Healthline, applying an external hydration method like aloe vera, can not only keep your scalp hydrated, but also promote growth. 

Shield Your Scalp From UV Damage

UV rays penetrate through hair to reach your scalp, causing sunburn, premature aging, and increasing skin cancer risk. Creating a physical barrier helps to defend against these harmful effects.

Wear a wide-brimmed hat whenever possible, choosing breathable fabrics such as cotton or linen that won’t trap heat. When hats aren’t practical, use a scalp-specific sunscreen with at least SPF 30. Apply it directly to your part line and any areas where your scalp shows through. 

Some hair products now include UV protection, offering dual benefits of styling and sun defense. You could also try a new hairstyle for hot and humid weather to help minimize sun exposure by keeping your hair closer to your scalp.

Cleanse Without Over-Stripping

Summer heat triggers increased sebum production, leading to greasier roots and potential buildup. However, washing your hair too often strips away natural oils, causing your scalp to overcompensate by producing even more oil.

Try washing every other day or every two days during particularly hot spells. Use a gentle, sulfate-free shampoo that cleanses without harsh detergents. Focus the shampoo primarily on your scalp rather than your hair lengths, massaging with your fingertips (never your nails) to remove buildup while stimulating blood flow.

Create Cooling Treatments at Home

When you need immediate relief from the heat, simple at-home treatments can provide soothing comfort. Aloe vera gel straight from the refrigerator offers instant cooling and healing properties. Apply it directly to your scalp, leave for 15–20 minutes, then rinse thoroughly.

Peppermint oil mixed with a carrier oil such as jojoba creates a natural cooling sensation while promoting circulation. Use just a few drops diluted in a tablespoon of carrier oil. These treatments help nourish your scalp during summer heatwaves with ingredients you likely already have at home.