20 Volume Gentle Creme Hair Developer | For Professional Salon Coloring | Lightening & Gray Coverage | Long Lasting Color | 4 Fl Oz

i love this product. it is awesome!

I used this product Sunday with color and as soon as it touched my daughter's scalp she started itching like crazy. She has never had this reaction before and the color we used is the same one we have been using so we know it wasn't that. I had to wash it out of her ASAP because of the allergic reaction she had to it. Definitely will not be purchasing this brand again, will stick to Wella.

I was missing guided by the size and content