Add 1 more part of the developer and continue mixing. For 2-3 levels lift, use 30 Vol developer. When she rinsed the product out of her hair, it was much darker. Of course, a salon could tone her hair with the correct ratio of toner and developer and fix the problem, but it could have avoided by simply following the ratios. However, you may visit "Cookie Settings" to provide a controlled consent. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Ratios should be followed to the letter. Mixing hair dye and developer together means that you are one step closer to having a brand new hair color. Ive mixed gel and liquid hair dyes multiple times, and it works just fine that way. For example, if you're taking 2oz of bleach, you'll need 4oz of developer and so on. Yes, it works, but remember the following. Theyre usually black with the measuring numbers inside. Pokeweed Search0Check out 0.00