user 153638
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Where I am in Europe, only the 4% is available. (In the United States 3% is available: 10 Volume Developer | Welloxon Perfect | Wella Professionals.)
What I am wondering is: when working with Koleston Perfect, should I be using Welloxon 4% exactly the way I would use a 3% developer?
I am in the (admittedly very slow) process of making the switch to Wella from another brand so please pardon all my questions!
Thank you.
What I am wondering is: when working with Koleston Perfect, should I be using Welloxon 4% exactly the way I would use a 3% developer?
I am in the (admittedly very slow) process of making the switch to Wella from another brand so please pardon all my questions!
Thank you.
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