Summer is great for vacations, pool days, and sunshine, but it can be surprisingly tough on your hair. Between humidity, UV exposure, chlorine, saltwater, and sweat, your hair and scalp deal with challenges they don't encounter during the rest of the year. To help you and your strands embrace the sunny season, we’re answering some of the biggest summer hair questions our experts hear every year.

Why is my hair so frizzy in humidity?

No matter your hair type, it is extremely common for your hair to look extra frizzy or poofy in humid weather. That is because humidity causes the hair’s cuticle to lift, which looks like frizzy flyaways. Curly, textured, or damaged hair often sees the most dramatic effects because these kinds of strands are naturally drier and try to pull moisture from the air.

PRO TIP: If you’re prone to frizz in the summer, use hydrating products or a daily leave-in conditioner to maintain moisture balance. It’s also a good idea to avoid heat styling at this time of year to keep your hair as hydrated as possible. 

Does sun exposure damage hair color?

Yes, UV rays can fade hair colors just like they can fade fabric. After having too much fun in the sun, blondes can become brassy, brunettes can lose richness and shine, and red hair colors tend to fade faster.

PRO TIP: To help prevent color fade, wear hats or a silk scarf for a chic finish. You may also want to incorporate a pigmented treatment into your routine to give your shade an added boost in between color applications.

Should I wash my hair more in the summer?

There is no universal answer to this question because it really depends on the individual. It’s true that sweat, sunscreen, and oil can build up faster during the summer, but if you’ve spent the day in AC, you may not need that extra wash. However, if your feels oily or weighed down from excessive sweating or hair products, it’s probably a good idea to hop in the shower. 

PRO TIP: Your scalp type matters more than one-size-fits-all rules. If you already have an oily scalp type, you might need an extra wash day if you’ve had a day outside. Either way, do what feels right for you.

How do I protect my scalp from the sun?

The scalp is skin that can burn just like the rest of your body, so it’s important to shield it from the sun’s rays. To protect your exposed part or thinning areas, the best protection is a hat, scarf, or even a sunscreen developed specifically for the scalp. 

PRO TIP: Already burnt your scalp? Avoid prolonged sun exposure until it heals, and use a soothing scalp serum or oil if needed. 

Why does my scalp get greasy faster in hot weather?

From sweat and sunscreen to humidity and product buildup, there are a lot of reasons why your scalp gets greasier, faster in the summer. Adjust your wash frequency during these hotter months if you feel like you need an extra shower. 

PRO TIP: Dry shampoo will help reduce that greasy feeling if you’re in a pinch, but nothing beats a good old-fashioned shower.

How can I stop my blonde from turning brassy in summer?

Blonde hair is particularly vulnerable in the sunny season because underlying warm pigments become more visible over time. You can offset these brassy tones with a neutralizing or color-refreshing treatment.

PRO TIP: Sun exposure, hard water, chlorine, and mineral buildup can all contribute to brassiness, so it can be hard to avoid in the summer. Embrace the warmth or make toning a part of your weekly regimen.

How do I protect my hair from chlorine and saltwater?

Before swimming in the pool or at the beach, wetting the hair can help prevent chemicals and salt from soaking into the hair. After swimming, it’s important that you rinse your hair immediately to wash away any lingering impurities.

PRO TIP: Both saltwater and chlorine dry the hair, so you’ll want to use an ultra-hydrating conditioner or hair mask after you take a dip. 

Summer hair challenges are completely normal, but they don't have to ruin your good hair days. With the right products and a few seasonal adjustments, you can keep your hair looking healthy, shiny, and manageable all season long.