Bought this for $2.29, although you can buy a full one pound tub for around $20-24 dollars depending on where you buy it. Ok, you mix this sachet with 4 ounces of developer. For reference, I used Clairol Soy 4Plex 30 volume and foiled my bangs and painted some stripes on the rest of my hair. Left in around 30-35 minutes, as I have dark blonde/25-30 gray at the roots lift resistant hair).
The instructions tell you to mix with 4 oz. of developer, and you will find it results in a rather soupy mixture. As instructed, left it stand one or two minutes for applying to allow mixture to thicken. I always add some hair oil to the mixture. This bleach supposedly conditions while it's bleaching.
Did a nice job, but some might want a thicker/creamier formulation.