How to Hydrate Your Hair in the Summer

Last Updated September 30, 2026

Summer is finally here! The temps are heating up, so get out those breezy sundresses and grab your sunscreen. We’re all well-versed in protecting and moisturizing our skin in the hot summer months, but do we think about how to keep hair hydrated in summer? It’s easy to beat the heat’s damage on your tresses with these seven summery pro tips!

Hair Routine

Use a Moisturizing Shampoo

Start quenching your hair in the shower with a fortifying wash. Fructis Triple Nutrition Shampoo is infused with three oils that nourish your scalp, lengths and tips for stronger, healthier hair.

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Garnier Fructis

Triple Nutrition Shampoo

Deep-Condition Regularly

One of the best ways to hydrate hair is to add a weekly deep conditioner to your summer hair care routine. Opt for nourishing products containing one or more moisture blasts from Mother Nature: avocado, olive, vitamin E and almond oils, shea butter, aloe vera gel and glycerin. Explore our deep-conditioning selection from the Fructis Sleek & Shine range.

Hydrate with Hair Oil

Treat your summer hair to a moisture lock with penetrating emollients like Triple Nutrition Marvelous Oil. It has multiple uses like hot-tool protection, so it’s a must-have for summer hair care.

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Garnier Fructis

Triple Nutrition Marvelous Oil Hair Elixir

Hair Treatment and Serums

Dry hair in summer yearns for treatments that know how to rehydrate hair and keep it soft and supple. Garnier Hair Filler systems are specially formulated for this purpose, and they all feature a super-quenching Inner Fiber Repair Pre-Shampoo Treatment. Even more exciting for your summer hair regimen? The three types of repair serums: Strength Repair, Moisture Repair and Color Repair.

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Garnier Fructis

Hair Filler + Vitamin Cg Strength Repair Shampoo

Hair Tips and Advice

Avoid Hot Styling Tools

Excess heat from styling tools, particularly in the summer, strips your hair of oils and dries it out. Embrace your natural locks when it’s hot by foregoing dryers and irons. Try air-drying with the help of Sleek & Shine 10-in-1 Leave-In Spray to tame potential frizz. If you can’t resist a blowout now and then, protect your hair with Perfector Mist and click a diffuser onto your dryer.

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Garnier Fructis

Sleek & Shine 10-in-1 Leave-In Spray

Brush with Care

Brush to evenly distribute moisture and detangle by using a wide round brush. For extra dry and frizzy hair, reach for a wide-tooth comb and apply a detangling spray. In all cases, avoid brushing or combing wet hair that’s at its most fragile.

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Garnier Fructis

Pure Clean Detangler

Protect Hair from Exposure

Since there’s no such thing as sunscreen for hair, plan for sunny outings by packing a hat, scarf and/or swim cap. And if you do take a dip, wash out the chlorine or salt after toweling off.

Drink Water

As the temperatures rise, so should your water intake. Stay hydrated from the inside out to help your hair maintain moisture.

How do I moisturize dry hair?

Moisturizing dry hair, especially in the summer, requires a multi-pronged approach to restore and balance its natural oils. Follow the seven proven tips above and read up on more of the best ways to hydrate hair.

What does dry hair look like?

Dry hair has telltale signs that include split ends, frizz, flyaways and an itchy scalp. It may also feel coarse and lack shine.

Can you overhydrate your hair?

It is possible to overhydrate your hair, either by keeping it wet for extended periods or overdoing moisturizing products. Counterintuitively, it ultimately dries out your hair! So, keep the hydration-boost products to once or twice a week and make sure they’re suited to your type of hair.

What causes dry hair?

Many factors cause dry hair, but summer is especially harsh on your tresses. Heat, UV rays, and swimming in chlorinated or salty water all call for a special summer hair care routine. If you dye your hair, find out how to maintain color vibrancy throughout the summer.

Is air-drying your hair bad?

Air-drying your hair is one of our top recommendations for summer hair care! Not only is it easier to do in warm weather, but it’s one fewer session with hot tools that are notorious for causing dryness.

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