Using Soap Cap at Home: The Ultimate Guide

 September 11, 2020

By  BC Editorial Team

Do you want to use a soap cap for your hair but don’t know where to start? Don’t worry, I got you covered. I will tell you more about the things you need, the procedures, and some aftercare tips in this article.

DIY bleaching can be tricky, but as long as you follow the guide accordingly, nothing will go wrong.

Note: Before proceeding, do keep in mind that a bleach bath is an aggressive process, so you need to be very cautious. It is also better to get help from a friend if it’s your first time to do the bleaching at home.

What is a soap cap?

In normal bleaching, you need to apply the bleach powder and peroxide mixture directly to your tresses. If you want very light locks, this is one of the best ways to achieve it. However, it can be overkill sometimes, especially if you’re dealing with fragile strands or don’t need a very light shade.

Luckily, a milder bleaching option is now available for those who need it. It is called a soap cap or a bleach bath.

Other than bleaching powder and peroxide, a clarifying shampoo is added to the mixture. It only uses a lower volume of peroxide, too, to make the solution milder. It is also applied on wet or damp strands, unlike in regular bleaching where you should apply it when they are dry.

Things You Need:

You’re gonna need some supplies to get started. Here are some of the things that you should prepare:

  • Clarifying shampoo
  • Bleach powder
  • Developer
  • Protection set (gloves, brushes, and cape)

Soap Cap Procedures:

  • Mix bleach and developer

The first step is to mix the bleaching powder with the developer. Use a 1:1 ratio. For instance, if you use 2 tablespoons of powder, you also need to put the same amount of developer.

You should also take note that developers have different levels, which indicated the amount of peroxide (bleaching agent) present. The higher the level, the more peroxide it contains. The products also have a variety of volumes, too. The weakest is 10 and 40 is the strongest.

For beginners, it’s better to use a 10-volume developer to see how your locks react to it.

  • Add the clarifying shampoo

Add some clarifying shampoo into the mixture. Use the same amount of product. This helps reduce the aggressiveness of the bleaching solution. You can also add a bit of conditioner to achieve a shiny finish.

Make sure that the product you’re going to use won’t cause dryness as it can make the strands brittle, resulting in breakage.

  • Apply the mixture

You can now apply the mixture. Wet your strands and dry it using a towel. Place a plastic cape or towel on your shoulders to protect your clothes. Then, put some gloves and start applying using a brush.

Begin from the bottom up, until you reach the roots. You can use your fingers to rub the mix against your head as well. Make sure that the roots will be applied last because they bleach much quicker than the rest of your hair.

  • Let it sit

Once you’re done, let it sit for 10 to 30 minutes, depending on your hair type. The darker the strands, the longer you should let the mix sit. But if you’re using a high-volume developer, avoid going beyond 15 minutes.

Use a hair clip to keep your hair together. Then, wrap plastic around your head to fasten the process. Also, keep a mirror beside you so that you can check if the desired color is already achieved.

  • Rinse your hair

The last step is to wash out the mix. If you’re planning to dye your locks after using soap cap, don’t apply a conditioner in it while washing.

Soap Cap After-care Tips

Bleaching can change the texture of your strands. They will become rough and drier, so you need to do proper after-care maintenance in them.

Here are some tips:

  • Use a conditioner regularly.

Bleaching can change the texture of your tresses. You will feel that they are rough and dry as soon as you wash them. However, it depends on the structure of your strands. The thicker and drier they are, the more attention should be given to them.

One of the best ways to take care of your locks is to use a conditioner every day. It will keep them moisturized and shiny, especially if the product contains a lot of natural oils that nourish both your scalp and strands.

  • Apply some hair mask once or twice a week.

Strengthen and moisturize your locks further by applying some hair masks once or twice a week. You can even create a DIY hair mask at home to make sure that it’s all-natural.

All you need to prepare is a cup of coconut oil and a teaspoon of extra virgin olive oil. Just mix them well and apply it generously throughout your tresses – make sure to cover the ends.

Cover them with a plastic cap and leave it for an hour before washing. You can also leave it overnight if you want.

  • Avoid using a hairdryer.

Using a hairdryer on bleached strands can make it look rough, too. That’s why you should avoid using any type of heat-styling tools to prevent dryness, frizz, and breakage. Use a towel to dry it instead.

  • Don’t wash your locks every day.

Washing your bleached tresses every single day can cause dryness. It can remove the natural oils and proteins on your strands, so it’s better to just wash them twice or thrice a week.


Soap cap is a more gentle bleaching process than full-on bleaching. It only uses a lower volume of peroxide, contains clarifying shampoo, and can be applied on wet hair.

However, even with its milder formula, you still need to take caution when using it. Make sure you have the right products, follow the right procedures, and regularly do after-care maintenance to keep your hair moisturized and healthy.

BC Editorial Team


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