How to Do a Shampoo Cap to Lighten Hair: Expert Tips

Medically reviewed by Dr. Bilal Khan M.B.B.S.
Written by Our Editorial Team
Last updated

Looking to freshen up your hair color or go a few shades lighter without a complete recolor? A shampoo cap, also known as a bleach wash or color balancer, could be the solution. This method involves mixing your hair color or bleach with shampoo to gently lighten your hair. Below we'll outline how to do a shampoo cap to lighten hair, plus some tips for post-lightening hair care.

How To Do A Shampoo Cap To Lighten Hair?

A shampoo cap is an effective and gentle way to lighten your hair. Here's a simple step-by-step guide:

  1. Mix your hair color or bleach with equal parts shampoo.
  2. Apply the mixture to your hair, ensuring it's thoroughly saturated.
  3. Once your hair is covered with the mixture, put a shower cap over it. This will help the process and prevent the mixture from dripping.
  4. Allow the mixture to process for 5-10 minutes. Be sure not to leave it on too long as this can cause damage to your hair.
  5. After processing, rinse your hair thoroughly, then shampoo and style as usual.

Post-Lightening Hair Care

After lightening your hair, it's essential to take good care of it to maintain its health and shine. Here's a simple moisturizing mask you can do at home:

  • Mix ½ tbsp of melted coconut oil and 1 tbsp of olive oil.
  • Apply a generous amount to your hair, focusing on the ends which tend to be the driest.
  • Cover your hair with a shower cap and wait for 1 hour.
  • Wash the mixture out with your everyday shampoo and rinse well.


A shampoo cap can be a great way to lighten your hair without causing excessive damage. It's an easy process that you can do at home, and with proper post-lightening care, your hair can look and feel fantastic. Remember, it's always essential to monitor your hair's health and consult a professional if you're unsure about the process.

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Dr. Bilal Khan M.B.B.S. graduated from the Jinnah Sindh University in Karachi. He'll take the official medical licensing program in the US (USMLE) in September 2023. Bilal has a passion for research and has extensively fact-check and medically review articles under his name to make sure you have the most accurate information.