Is Sun In bad for your hair? How often should you use it to avoid damaging your hair?

how often to use it

  • Yes, Sun In can be bad for your hair if you use it too often. It contains very strong chemicals, such as ammonia, and peroxide, which can break down and dry out your hair.
  • To avoid it, you should use it once or twice a week at most. Then, apply an intensive moisturizing treatment.
  • Moreover, remember that this product is for light or very light hair. It can make orange colors appear in dark hair.


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Every time the Universe sends us new hair products, we women launch ourselves like Attila’s hordes to get one of them.

However, remember that even Attila was vulnerable and died in a triple sarcophagus made of gold, silver, and iron.


 If you don’t want to ruin your hair, you should be careful with the products you use. 

Is your hair light?


Then, Sun In can be an ally to give your hair a sunkissed effect, as if you had spent a few days on a Caribbean beach.

Be careful! One false step and your hair will be dry and straw-colored, frizzy, and dull. Why?


 To achieve that sunkissed effect on hair, Sun In contains a series of very aggressive components to the hair peroxide, sulfates, ammonia, chamomile, lemon juice, and glycerin. 

Yes, all those ingredients are in Sun-In. You can look at them yourself on the label.


So, if you don’t want to damage your hair, you shouldn’t abuse Sun-In. You should use it sparingly.


  • If you use Sun In once or twice a week and then apply a moisturizing treatment, you won’t damage your hair.
  • If you use it every day, your hair will be completely dry and damaged in a matter of weeks.
  • If you use it on your dark hair, the effects will be devastating because orange colors will appear.


  So, using Sun In incorrectly can be bad for your hair and alter its color regardless if it’s natural or artificial. 

So, to avoid ruining your hair as if it were Attila’s lands, I’ll tell you:

  • How to apply Sun In the right way to not damage your hair
  • Sun In aftercare

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How to apply Sun In the right way to not damage your hair

to lighten her hair

The first thing you should consider is your hair’s base color.


 If your color is dark or medium, you shouldn’t apply Sun In. Otherwise, your hair will turn orange.[/suhighlight]

So, in which colors can the product be applied?

  • Blonde 7
  • Light blonde 8
  • Very light blonde 9
  • Hair with blonde highlights


If your hair is in the range of those colors, and you want to apply Sun In to lighten it naturally, you should plan to prevent damage.

Remember that it’s nice to have sun-kissed hair, but which is also frizz-free.

So, if you’re determined, you can apply it once or twice a week to your lighter hair.


  But, if you want to apply it 3 times or more, I recommend that you prepare your hair as if you were going to bleach it. 
Yes, just like you read it.

If you decide to use Sun In more than three times a week, you should protect it as if you were going to bleach it. Bleach is a more than aggressive chemical process.

How do you do it?


I’ll tell you right now.


How to prepare your hair if you plan to use Sun In very often

extra virgin

  • Apply coconut oil from roots to tips 4 hours before.
  • Use keratin moisturizing shampoo and conditioner every time you wash your hair.
  • Use ends repair oils during the day to prevent dryness.

Once you follow these steps, your hair will be healthy and strong to resist the effects of Sun In.


However, I must be honest.  As a professional stylist, I advise or, rather, I beg you not to abuse Sun In. Twice a week will be enough to lighten your hair.  

If you decide to play with your hair and apply Sun In every day, you’ll have to face the consequences. It’ll never be enjoyable for your hair fiber.


Do you know how to apply Sun In?

Application is very simple thanks to its sprayer. It works well to apply and distribute it evenly.

  • Apply Sun In 6 inches away from your hair on wet and untangled hair
  • Once you finish applying it, comb it again to distribute the product
  • Use the hairdryer at medium or high temperature until Sun In is completely dry


You’ll notice that your hair has lighter highlights from the first application. That’s why once or twice a week is more than enough to lighten your hair without damaging it.

Note: if you notice your hair is dry, brittle, or dull after the first application, stop using it immediately and start moisturizing your hair.


6 tips for Sun In aftercare to avoid damage

Do you remember Sun In’s formula?


 Let’s recap: peroxide, ammonia and lemon juice. Add the heat from the hairdryer for components to work perfectly.  

Then, of course, you’ll notice your hair drier, no matter how often you use Sun In.


Luckily, I’m coming to rescue you, and I’ll tell you several ways to repair your hair before the damage is irreversible.

  • Use extreme moisturizing shampoo and conditioner with keratin, coconut, and argan oils.
  • Apply a coconut oil mask and leave it in all night. If you don’t want to stain your pillow, you can wrap your hair in a shower cap. The next morning, rinse with plenty of water.
  • Don’t bleach or apply permanent dye for at least 3 weeks.
  • You can spray micellar water every 3 hours on dry hair.
  • Use argan and coconut repair oils on your ends to prevent breakage.
  • Don’t overuse straighteners or curling irons.


If you follow all these recommendations, your hair fiber will regain its natural moisture, and your hair will be completely repaired.



Products like Sun In must be used responsibly not to damage the hair irreversibly.

If you want to lighten your hair, use Sun In once or twice a week only if your hair is light or has blonde highlights.

You should also moisturize your hair deeply after applying Sun In to recover the lost hydration and prevent frizz and split ends.

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