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

Easy to use, and great color choices

Works well, stays put, no dripping

Huge bottle and great price for the amount. Only thing I don’t like about it is when I have hair up in foils, the oil drips after a while and it gets kind of annoying.

Very good

They quality and it’s very good size , it’s Definitely worth the money

For me. The best developer bar none

Just what I needed ! Will order again

This is the exact product used in salons. Do it yourself!

Quality product.

This is the best developer I have ever used. Quick, effective, no brass tones. Super happy with the results I think I’ve fiballt found my go to!