Ever wonder what the results are when you mix 4RO and 4RV together?
Here’s a great visual.
The far left is 4RV on white hair.
The far right is 4RO on white hair.
You can see from the mixtures that RV tends to take over the formula even when there is only 1/2 an ounce of RV added to 3 times as much RO.
Remember this, A small amount of RV with neutralize the orangeness of an RO and make it lean more toward a cool red.
And… a little RO in an RV formula will make it appear brighter.
Hope you like this tip.
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