Oxidizing Emulsion jNOWA Professional OXY 3 % (10 vol)

The 3% hydrogen peroxide with this brand's powder gently lightens hair. I highly recommend it!

This is a very aggressive developer. And this is at 3%. It turned my soft hair into a mess. Even the oils in the Sienna dye didn't help.

I am constantly dyeing my hair with Sienna hair dye and jNowa developer, and I am very satisfied with the results. I have very few gray hairs, so it dyes perfectly with this percentage of developer.

The oxygen is good and interacts well with the paint. I recommend it to everyone - the price and quality of the product are superb.

The oxygen is great and interacts well with the paint. I highly recommend it to everyone - the price and quality of the product are superb.

I have been using this product for a while now. I color my hair very often with the use of this developer. I highly recommend it! It has a pleasant price and comes in a large volume.

This is a very good developer, I have been using it for a long time, just like the paint from this brand. The product is of high quality and has a pleasant scent. I highly recommend it. It is easy to use and I haven't encountered any issues. The delivery was fast, thank you.

The product is of high quality. I use it with the paint from the same brand. I am very satisfied with the developer - it doesn't burn and has a normal scent, which is almost unnoticeable. It performed its job well. I purchased it for the dark brown Siena 3/7 hair dye, and everything turned out great.