Would it be unprofessional to use more than one brand for facials?

[Annieskye]

I want the best. Some certain lines has things that I want for a certain facial. I was wondering if I can mix it up

 

[ukbeauty]

You can always offer a bespoke facial. Make the USP the fact it is mixed specially for the individual client.

 

[CFBS]

There's no problem with using one main skin care range for your treatments and then infilling/swapping the odd item from another range if you think that is best for your client.
Document what you use on the clients card for consistency of treatments