How do you go about assessing the right solution % for your customers skin type?

[collin]

Now i have booster drops which saves the hassle, but my booster drops are for Celebrity Secrets. So, if someone came in wanting a darker, let's say Sienna X solution mmmmmmmmmmm........
Now would i add my Celebrity Secrets booster drops to it or would i try and persuade them to use another solution?
Can you use booster drops from one solution and put in in another solution? I would think you could but i've never tried.
Where's my nephew when i need him to be a guinea pig!!

Given that booster drops are simply DHA concentrate you can ,generally speaking use them with any solution type.
It is probably better to use booster drops from the same brand as the DHA is probably the same and may give better results....I guess the thing to do is to try it...without experimenting you will never be in a position to offer something specific to your customers ski type or needs.

 

[Violet Star]

When i have been low on lotion of both % i have mixed them together (this was for my sister) and to be honest i didnt actually notice much difference it still looked like a 10%