COS, The Original Color Out System Pre Pak


COS is a technology that is the safest and most effective way to remove undesirable hair color. In just 20 minutes, COS corrects and removes the color by shrinking the dye molecules, allowing it to be simply washed out of the hair. Levels are of no concern as COS's unique bleach and ammonia free formula removes all artificial pigments from the hair keeping the hair in great shape. COS is so gentle that the hair can be recolored right after the COS service.

Removes color in just 20 minutes.

Color Correction is Hard...But it Doesn't Have to Be.
Read Al Segro's Color Correction Tips.

SKU: 32717
UPC: 809743327173

Removes Any Color - Gently removes oxidative permanent, semi & demi permanent hair color safely.

Takes Only 20 minutes - Following directions on the box, simply applying and rinsing after the COS process only takes 20 minutes.

Recolor The Same Day - With our Ammonia & bleach free COS formula, the hair will be safe enough to where you may recolor the same day.


Watch our Tutorial

Full Directions

Mix COS in an applicator bottle or bowl. Equal amounts of part 1 and part 2 must be mixed together for 30 seconds. Secure a cap on both. Apply to dry hair that need hair color removal or correction. Place cap on hair, clip securely and process for 20 minutes. Rinse for 10 minutes with warm water. Shampoo a minimum of 3-4 times after rinsing. Check for color removal. To assue that COS has removed all the artifical pigment conduct a 10V Reduction Test. Once color is removed and final rinising is performed, apply conditioner and rinse out.

Additional Uses

Color Correction - Is used to correct or reverse an undesirable recent color application.

Dark: Off Tone - Is applied to the hair in areas that the previously applied color is too dark, or off tone.

Permanent: Semi Permanent Color - Used to remove color that has been previously mixed with developer.

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Professionals Only -Salons call for pricing (732) 308-9935.

Frequently Asked Questions:

How long do I have to wait to recolor my hair after using COS?

You may recolor your hair the same day after using COS. You're able to do this because the color molecules in the hair shirnks down to a point where it gets washed out easily, thus leaving your hair at a gentle, natural state and ready to be colored again.

Will COS leave an ammonia or bleach smell?

No, COS is made with an ammonia and bleach free formula. It is a scentless additive.

How long will the COS process take?

COS will correct and gently remove color in only 20 minutes.

Customer reviews
The finished result is actually lighter than it looks in the picture. My walls are BRIGHT yellow, so it looks more yellow. And I didn't tone it right after. That is a picture right after I finished 3 applications with Olaplex. It might have been a little drier, but my hair felt fine afterward. It didn't do ANYTHING to the natural color of my regrowth. That's one of the main reasons I chose this product. I did this do I could grow my silver white hair out.
— Meredith (Verified Customer)
I put a red tint in my hair, and I hated it. I tried a lot of other ways to get the red out, but nothing worked. I finally tried COS and it took the red right out. I recommend it.
— Jocelyn H. (Verified Customer)
Lifts stubborn color and doesn’t affect natural hair! No damage!
— Brenda R. (Verified Customer)