HAIR AND SUN DAMAGE

Too much exposure to the sun can damage most hair types, but there are ways to keep your strands and scalp protected.

If your hair has prolonged exposure to the sun, UVA and UVB rays can damage the outside cover of the hair strand, called the cuticle.

DIFFERENT KINDS OF DAMAGES CAUSED BY SUN

• It can make your hair dry, brittle and frizzy

Just like overusing a hair dryer (depending on your hair type) can cause significant damage to your hair, so can the sun’s rays. If you notice that your hair is starting to feel dryer, frizzier or brittle (almost like it feels like straw), it may be a sign that it’s damaged. Extended heat and dryness can also cause more breakage and split ends in your hair over time.

You can recognize sun-damaged hair by the way it feels and how it reacts to your normal styling routine. “Damaged hair has a dry look and feel that is unmanageable and won’t hold a curl or style. Damaged hair usually dries quickly.

• It can change your hair’s color and lead to premature graying

You may have noticed that depending on your hair type a tropical vacation may cause you to come home with slightly lighter strands. Even without color treatment, your hair can change in color from the sun. But this is another sign that your hair is taking a hit from the sun’s heat.

“The sun’s rays act very much like bleach on hair. “Bleach reacts with the melanin in the hair and removes the color in an irreversible chemical reaction. Bleach also damages the hair’s cuticle and protein, which is called keratin.

And while it’s normal for many of us to start seeing gray hair as we get older, extensive heat damage from the sun can actually accelerate this process. 

While any kind of hair is prone to hair damage, your hair can be particularly vulnerable to sun damage if it’s fine or light-colored.

“That finer, lighter hair lacks the thickness or pigment that can protect it from the sun’s rays while darker, coarser hair usually is oilier, and its thickness, darker color, and oil covering help to protect it. “Your hair is also more fragile and more prone to sun damage if you have thin, flat, or tightly coiled hair.”

Hot flat irons or rollers, chlorinated water in swimming pools, or lightening your hair can make it more vulnerable to the summer stresses of heat and sun. All of these can damage your hair’s protein, keratin. The damaged protein then allows sun and heat to penetrate your hair more easily and results in a more fragile hair strand.

Is hair sunscreen a good way to prevent hair damage?

The good news is that you can take precautions to protect your hair from the hot summer sun, in this regard, you can use an SPF (sun protection factor) product that’s catered to shielding your hair from harmful rays.

HAIR SUNSCREEN

Hair sunscreen works by forming a protective barrier on the surface of your hair that helps shield it from the sun’s damaging ultraviolet (UV) rays. The active ingredients in hair sunscreen products typically include UV filters like avobenzone, octinoxate and zinc oxide, which work by absorbing or reflecting UV radiation.

But it’s important to note that hair sunscreen works differently from sunscreen for your skin. As our hair is technically made of dead skin cells, it doesn’t have the same reaction to sun damage as our skin does — visible redness, burning pain, peeling, etc. It requires a different kind of approach.

Instead, hair sunscreen focuses on protecting your cuticle (the external area of the hair strand) by creating a buffer between it and the sun’s rays. Keep in mind: Hair sunscreen doesn’t work to prevent cell damage like regular SPF products do. 

CAN SUNSCREEN CAN BE USED ON THE SCALP? 

While the desire to protect your hair from the sun may mostly come from a desire to keep your hair shiny and manageable, it’s important to note that our scalp requires more hefty protection from the sun. 

A sunburnt scalp sounds uncommon, but the top of your head is one of the most prone areas to sunburn on your body. Plus, it may be the last area you’re thinking about during the day, so it’s important to keep it protected. As your scalp area is part of your skin, you’ll want to apply a regular SPF product (a lotion or spray is fine) that actually prevents cell damage from UV rays.

If you’re applying a spray hair sunscreen anyway, you can apply it on your scalp as well — it won’t do any harm. But you don’t want to solely depend on hair sunscreen to protect your scalp. There are specific sprays or balms you can get that can protect your scalp but leave your hair less chalky or oily. You can also try mineral or powder sunscreen too.                                                                     

How to apply hair sunscreen

Hair sunscreen usually comes in a spray bottle you can apply after styling or brushing your hair. It’s easy to apply and can be used similarly to how you apply styling spray or hairspray. 

Here’s how to apply your hair sunscreen before going out in the sun: 

1. Start with clean, dry hair. You can either apply the hair sunscreen before or after styling it. 
2. Shake the bottle well before using it to make sure the product is well-mixed.
3. Hold the bottle about six inches away from your hair and spray evenly across your hair. Focus extra time on the top of your head (where your hair splits into a part). This is where your hair is most exposed to direct sunlight.
4. Use your fingers or a comb to distribute the product throughout your hair, covering all areas.
5. Let the hair sunscreen dry completely before going outside.

Other Ways To Protect Your Hair From Sun

Whether you’re using hair sunscreen or not, covering your head during hot and sunny days is your best line of defense against the sun’s rays. 

You can also protect your hair from sun damage by: 

• Wrapping a scarf around your hair, wearing a wide-brimmed hat or using an umbrella. 
• Going out early or late in the day, just as you would to protect your skin.
• If you swim in a chlorinated pool, wear a swim cap or put your hair up in a high bun to keep your hair dry. If you get your hair wet, make sure you rinse the pool water — which contains chemicals like chlorine out of your hair with clear water.

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