Schwarzkopf Professional Igora Royal Developer 6% / 20 Volume 33.8 oz

Does what its supposed to do. I worked at a salon that carried this brand and it works just like it.

This is an excellent product. It does work very well. Moreover, it didnt really come with instructions, that is a bummer. I had to go to YouTube to see how to use the cream and this product at the same time. Meaning I had to mix them. In addition the huge problem was how much I had to mix. But overall, the results are very satisfying. Thanks, Laura

My daughter did my hair with instructions from my stylist and it worked beautifully! So happy.

Love the quality of this brand! My hair doesnt get damaged when I dye my hair with their products!

I use this product to mix it with Sshwarzkopf hair color.

When in times like this when we cannot go to our stylists and we must do it ourselves! Thank goodness for supplies that are available online.

I bought this to use with the same brands 10 minute hair color. It’s works great with beautiful results every time. I recommend this product highly.

I like this color product very much. The color I selected was a little dark for me, next time o will go lighter.

Love the product & love the convenience. Many thanks.

Schwarzkopf products are simply the best! Dependable results every time, love their color also!