How Long Does Semi-permanent Hair Dye Last (All Your Questions Answered)

how long does semi-permanent hair dye last
how long does semi-permanent hair dye last

I woke up on a beautiful Saturday morning, and I felt the need to switch up my hair game. Yes, I wanted to dye my hair and I am going for the semi-permanent dye but I had a lot of questions; how long will semi-permanent hair dye last on my hair? Yes, I know it’s semi-permanent but how long will it actually last on me? Will it damage my hair? Will it wash off the following day because it’s not permanent?


I did not get my answer on the spot, but guess what, I researched and got plenty of answers. I will be sharing my discovery with you in this article and everything you need to know about semi-permanent dye. Read on friend.

How long does semi-permanent hair dye last?

Semi-permanent hair dye last for about four to six weeks. It does not wash off the next day. The color starts to fade off naturally after 4 weeks and you will not need to touch up the color if you no longer want it in your hair.
Although Blues and greens, for example, may remain even longer. With each wash, the color will fade somewhat, but the gorgeous fade out process is all part of the fun!

What are the benefits of using a Semi-permanent dye?

There are quite a number of benefits attached to using a semi-permanent dye. One of such is that it does not infiltrate the hair shaft, making it less harmful to strands. Some other benefits include:

  • You don’t need to worry if you are not satisfied with the color. Temporary dyes will eventually wash out.
  •  You get your desired hair color without necessarily damaging your hair strands.
  • Temporary dyes will eventually wash out if you are unhappy with the colour
  • It is less harmful and safer than permanent hair color. This hair color’s formulation is free of bleach and ammonia.
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When you plan to color your hair next time, you might want to consider using semi-permanent hair color.

Is semi-permanent hair dye damaging?

As much as I recommend the use of semi-permanent dye, there are also some cons to using it frequently. Frequent application of semi-permanent hair dye can damage your hair.

  •  Semi-permanent hair colors fade quickly and must be reapplied regularly, which can be drying to your hair.
  • Semi-permanent hair color does not open the cuticles of your hair, causing little to no damage.

How many washes does semi-permanent hair color last?

Semi-permanent hair color should last about six to eight washes with moderate to mild shampooing and minimal exposure to the sun and swimming pools because to chlorine. Semi-permanent hair dye fades faster with frequent washing. If you wash your hair every day, the colors would start to fade out after the 10th wash.

To help the color last longer, try washing your hair less frequently. Make sure you’re using a shampoo and conditioner recommended for colored hair that won’t strip your color.

Difference between semi-permanent and permanent hair dye

  • Semi-permanent color is easy to maintain and does not last for a long time. It fades out in about three weeks due to the lack of chemicals like ammonia or peroxide.
  • Permanent color, on the other hand, comprises ammonia and hydrogen peroxide, which work together to open the cuticle and interact with the melanin and keratin that give color and texture to the hair.
  • A permanent color enters the hair shaft and permanently changes the color pigment in your hair.
  • While the semi-permanent dye coats the outside of the hair shaft, acting as a gloss over the top of hair that is unable to stick to anything for lengthy periods of time and hence washes away.
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How do you get semi-permanent hair dye out?

There are several methods you can use to remove semi-permanent hair dye from your hair. However, I will share with you two easy methods you can use to remove hair color.

1. Vitamin C Method
2. Baking soda Method.

Vitamin C method:

The major things you need in this method are; Vitamin C Tablets, Anti-dandruff shampoo, mortar, and pestle.

Step 1:
Crush the vitamin C tablets till they produce a fine powder. The quantity you crush is depending on how much you need based on hair length. If you don’t have a pestle and mortar, you can crush the tablets with the back of a spoon.

Step 2:
Mix the vitamin C powder with anti-dandruff shampoo to form a paste.

Step 3:
Apply the paste to hair; concentrating more on the areas where you want the semi-permanent dye to be removed, and leave for about an hour.

Step 4:
Thoroughly wash the paste and towel dry to see the amazing results.


Baking Soda Method:

A research review from 2015 According to Trusted Source, alkaline chemicals like baking soda have the ability to penetrate the cortex of your hair and aid in the removal of hair color.
Here are the simple steps to applying the Baking Soda method:

Step 1:
Mix a small amount (depending on the hair length) of baking soda with anti-dandruff shampoo or water. Miz until it forms a paste.

Step 2:
Apply the paste to your hair, especially the area of the colored hair.

Step 3:
Wait for about 20 minutes, then rinse out.

If the dye isn’t entirely out, you will need to repeat any of the methods above if you have a lot of color in your hair, but we recommend waiting at least 48 hours between applications to avoid hair damage.

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How long to wait to wash hair after semi-permanent color?

If you have just colored your hair with semi-permanent hair dye, I will suggest you wait for about 72 hours before shampooing.
Eva Scrivo is a New York City hairstylist, she stated that “The cuticle layer can take up to three days to fully seal, trapping the color molecule and providing for longer-lasting hair color.”
When it’s time to wash your hair, we recommend washing your hair with cold water to keep your new hair color vibrant and brilliant. Cold water keeps the hair cuticles locked, which prevents the color from fading too quickly


how long does semi-permanent hair dye last on blonde hair?

The color will fade gradually with time, but the finest version of the temporary dye will be experienced within the first two weeks. Shampoo and conditioner should be used once a week, with colored hair shampoo being used to help extend the look and avoid fading.


How long does semi-permanent hair dye last on dark hair?

Semi-permanent dye starts to fade out after many washes. It lasts for about 4 – 6 weeks. The hair type does not matter, and the true fact here is; that semi-permanent hair color, just as the name implies, does not last for a long time.

Does semi-hair dye wash out completely?

The semi-permanent dye washes out fully over time. This is due to the fact that it does not stick to the hair strands permanently. It’s a good idea to apply a touch-up color every few weeks if you like your new hair color and want to keep it from fading.

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