How Do You Tame Frizzy Hair in High Humidity Without Using Heavy Products?

Why does humidity cause frizz?

Humid air makes hair take in moisture, which can change its shape. You'll notice it more if your hair is already dry, damaged or naturally textured.

You finish styling, step outside, and twenty minutes later your smooth hair is puffing up. So frustrating, especially after spending time getting every section right.

Hair reacts to moisture in the air. As strands take in water, they can change shape. Straight hair might start bending or swelling, while natural curls lose their definition. Porous or damaged strands tend to be even more troublesome.

Here's where people often make things worse. Adding another layer of cream or oil to every flyaway can leave your roots flat and your ends greasy. Instead of coating your hair, focus on keeping moisture under control and holding the shape you've already styled.

What makes frizz worse?

• Too much washing.
• Rubbing wet hair with a cotton towel can rough up the strands and leave them frizzy before you even start styling (a soft T-shirt is gentler).
• Brushing out dry curls or waves.
• Are you adding too much styling cream? That extra layer can leave fine hair limp.

Which lightweight products work best?

A lightweight leave-in conditioner followed by a little anti-frizz styling product is a good combination. Your hair gets some softness without that coated, greasy feeling.

Start with a leave-in conditioner that suits your hair. Fine, straight hair usually does better with a spray or fluid formula. Thicker or curlier hair needs a bit more conditioning, so a lightweight cream may feel better.

The American Academy of Dermatology recommends putting leave-in conditioner on damp hair, mainly through the mid-lengths and ends. Keep it off your scalp. Start small, especially if your hair gets oily quickly, and add a little more only if the ends still feel dry.

For extra help on sticky afternoons, try a lightweight anti-frizz serum or styling gel. Check the label for humidity resistance or frizz control. Flexible-hold gel keeps curls grouped together, while a smoothing serum can tame flyaways on straighter hair.

Shiny hair isn't necessarily protected hair. A generous coating of oil might make your ends look smooth, but it can flatten fine strands. If they need extra softness, rub one small drop of lightweight hair oil between your fingertips and work it into the very ends after styling.

What should you look for?

• Spray leave-in for fine hair.
• Thicker curls often feel better with a lightweight cream (especially when the ends get dry between washes).
• Need extra hold? Try a humidity-resistant styling gel.
• One drop of oil on dry ends is plenty.

How should you dry your hair?

Be gentle while drying, and don't call your style finished until every strand is dry. That way, you're less likely to disturb your hair while moisture is still escaping.

The towel you reach for after a shower matters. Scrubbing wet hair with an ordinary towel creates friction and roughs up the cuticle. Your hair can look frizzy before you've even picked up a styling tool.

After washing, squeeze out the extra water with a microfiber towel or soft cotton T-shirt. No tight towel turban. Work your leave-in conditioner through damp hair with your fingers or a wide-tooth comb, then let it settle before drying.

Blow-drying? Attach a nozzle and point the airflow down along the hair shaft. Work through manageable sections rather than blasting the same patch with high heat over and over. Put on heat protectant before reaching for hot tools.

For curls and waves, a diffuser on low heat and low airflow is a better bet. Try not to keep touching or scrunching your hair as it dries. Prefer air-drying? Leave it alone until it's completely dry, then separate the curls or arrange your finished style.

What makes drying easier?

• Squeeze out water with a soft T-shirt.
• While your hair is still damp, work in the leave-in conditioner evenly.
• Is a blow-dryer part of your routine? Point the nozzle down the hair shaft.
• Finish with a cool-air setting.

How do you protect your finished style?

Keep your hair dry where possible, stop running your fingers through it, and reach for a light finishing product when needed. A few small habits can make a difference when the air feels sticky.

Once your hair is completely dry, leave it alone. It's tempting to keep running your fingers through it or rearranging loose strands, but that can disturb the surface and bring out more flyaways, especially on humid days.

A light mist of flexible-hold hairspray can keep loose strands in place. Hold the bottle about 10 to 12 inches from your head and spray a fine layer. Don't soak your hair. If you've used styling gel on curls, wait until everything is fully dry, then scrunch out any stiffness.

Think about the walk from your front door to the car, too. A hood, hat or umbrella can shield your hairstyle from rain and damp air. Caught in unexpected humidity? Don't keep brushing. Smooth a little serum over the flyaways you can actually see.

There's no need to start your whole styling routine again at lunchtime. Keep a travel-size anti-frizz product in your bag and use it sparingly. Two light applications are usually better than one heavy coating.

What habits help your style last?

• Stop running your fingers through your hair.
• A light hairspray mist from 10 to 12 inches away can hold loose strands without soaking them.
• Got room in your bag? Carry a small anti-frizz serum.
• Keep rain off your finished style.