Does Sun Bum hair lightener work without sun?

woman with a hat

  • Yes, Sun Bum hair lightener will work even if you don’t expose your hair to the sun.
  • Of course, the results might not be what you want or what the manufacturer guarantees.
  • Because if you don’t expose your hair to the sun’s lightening action after applying Sun Bum, you may lighten your hair, but you’ll also see some harsh colors. And I’ll tell you why later.


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Do you want to use Sun Bum hair lightener on your hair to achieve some highlights? Or do you want to give your light hair a touch of luminosity?

 You can use Sun Bum hair lightener without the sun. But to achieve the effects you want, it’s best to expose your hair to the sun after applying the product. 


Of course, if you don’t expose your hair to the sun once you apply Sun Bum, the product will still work a little. Why? Because it contains hydrogen peroxide in the formula. However, the results won’t be as promising.

Why not?

woman opens her arms to the sun

 Because its formula, which in addition to hydrogen peroxide also contains lemon and pineapple, is activated by the heat of ultraviolet rays. 

In other words, lemon, pineapple, and peroxide have lightening effects. But the sun enhances them.


The truth is, if you’re going to use a product like Sun Bum, which is designed to work when exposed to the sun, don’t go off the rails.

sun bum hair lightener

If you’re uncomfortable with sun exposure, you can lighten your hair in other ways.

For example, go to the salon and ask your colorist to apply an Ombré. You can even lighten sections of your hair by applying developer.


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But if you are determined to use Sun Bum, the best thing you can do is to expose your hair to the sun after applying it. Then you’ll see the results the manufacturer guarantees.


Because  Sun Bum is a lightener that INTENSIFIES the action of the sun. 


What if you apply it but then don’t expose your hair to the sun? It depends on the base color of your hair. The peroxide may lighten your hair, leaving some harsh colors. Then you’ll have to neutralize them with a toner or a toning shampoo.

So here’s the idea. When you buy a product, you should use it according to the manufacturer’s instructions.

In this case, if you’ve bought Sun Bum, and the manufacturer recommends using it by exposing your hair to the sun’s rays, you should use it in that way.

Because if you don’t get the results you want, it won’t be the fault of the product or that Sun Bum doesn’t work.

There will be only one person responsible. Can you guess who I’m talking about?


That’s a good guess. It’s a word to the wise.

After my recommendations, if you still want to use Sun Bum, here’s how to apply it correctly.


How to use Sun Bum correctly while exposing your hair to the sun

a hand holds sun bum

Sun Bum is very easy to apply and will leave your hair smelling amazing.

What do you need?


You’ll need Sun Bum, a nice comfortable sun lounger to lie down and sunbathe, and of course, sunscreen to protect your skin.

  • Comb your hair and separate the sections you want to lighten. Sun Bum can be applied to both wet and dry hair.
  • Apply five or six pumps of Sun Bum 15 centimeters into your hair, distributing them throughout your hair.
  • Comb your hair again and apply one or two more squirts of Sun Bum throughout your entire hair.
  • Apply sunscreen to your skin and lie  in the sun for at least 20 minutes. 
  • Once at least 20 minutes have elapsed, rinse your hair with cool water and apply conditioner to moisturize your hair.


The manufacturer recommends using Sun Bum no more than twice a week.

Personally, I recommend that before applying Sun Bum to your hair, you do a strand test on some of the back strands of your hair. Because this way, you’ll know exactly what Sun Bum will do to your hair when you expose it to the sun.



Now you know. To achieve the results the manufacturer promises, it’s best to expose your hair to the sun after applying Sun Bum.

My professional advice is that after using Sun Bum, you should use a keratin mask once a week. Because this product contains peroxide, which takes moisture away from your hair.

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