Will this remove black hair dye and is this good for thick-coursed hair?

You might need 2 boxes for thicker hair but it should help remove black. Black and red are harder to remove but the extra strength removed my red.

I'm growing out my natural grey. If i use on the dark brown will it ruin my natural color coming in?

Same reason I tried it. Didn't damage new hair but didn't take out old color either. No harm, no help.

You can apply the products with your hand (with the thin gloves that come with the product) or you can use a hair color brush. I liked using my hands because you want to feel that it is fully saturated and gently work it into your hair. If you have more layers of dye at the bottom of your hair start there, but if you just have one even layer of dye on your hair, it is easiest to section hair in 3-4 sections and go top-bottom from the lowest section to the top of head. Use all of the product...hair totally saturated. No need to apply to new growth at the roots. Hope that helps! Leave on for the full time and rinse it out for 30-40 mins. I know it is crazy to start in the shower for 40 mins, but trust me it makes a big difference on results!

Hola tengo el pelo color café y lo quiero rubio pero no me quiero decolorar esto me lo aclarará ?

Si te va aclarar pero no tanto como un decolorante

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Extra - Colour eraser “Packaging may vary”

Product ID: 254268431

Details

Brand
Colour B4
Colour
[NU]
Item form
Liquid
Package information
Bottle
Product benefits
Hair Color

⚡Extra strength formula

🌿Ammonia & peroxide free

🛡️Protects natural hair pigment

AR$204652

Duties & taxes included

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Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌀 Erase the past, reveal the real you!

CLEAN CHEMISTRY - Free from ammonia and peroxide for a healthier hair experience
FAST AND EFFECTIVE - Shrinks dye molecules for quick, visible results in just over an hour
POWERFUL YET GENTLE - Extra strength formula targets stubborn dark dyes without damage
NATURAL COLOR REVIVAL - Safely removes artificial color, revealing your true hair shade
CONFIDENCE IN A BOTTLE - Trusted by thousands to fix color mishaps and avoid costly salon visits

Colour B4 Extra is a powerful, ammonia- and peroxide-free hair color remover designed specifically for dark dyes. It safely eliminates unwanted artificial color without affecting your natural hair pigment, restoring your original shade in about 60 minutes. Ideal for all hair types, this extra strength formula offers a fast, effective solution to color mistakes, making it a must-have for anyone craving a fresh start without salon hassle.

Specifications

ASIN	B003IPTTLA
ASIN	B003IPTTLA
Best Sellers Rank	#134,749 in Beauty ( See Top 100 in Beauty ) #1,772 in Permanent Hair Color
Brand Name	Colour B4
Color	[NU]
Container Type	Bottle
Customer Reviews	3.5 3.5 out of 5 stars (14)
Customer reviews	3.5 3.5 out of 5 stars (14)
Date First Available	6 August 2012
Full Cure Time	6E+1 Minutes
Global Trade Identification Number	00887211000032
Hair Color Permanence	Demi-Permanent
Hair Type	All
Is Discontinued By Manufacturer	No
Item Form	Liquid
Item Weight	274 Grams
Item model number	SC103
Language	French
Manufacturer	ColourB4
Manufacturer	ColourB4
Manufacturer Part Number	SC103
Material Features	peroxide and bleach free
Material Type Free	Ammonia Free
Model Number	SC103
Number of Items	1
Package Size Name	Pack of 1
Product Benefits	Hair Color Removal
Product Dimensions	8.5 x 7 x 16 cm; 274 g
Recommended Uses For Product	Remove hair color
Suitable Hair Color	Dark Brown
UPC	887211000032
Unit Count	1 Count

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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AR$204652

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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