is ok to use wifes new make up brush to clean styius needle

I'm with Teo.  However, Last also make similar stiff brushes, sold with their stylus cleaners and preservatives, that probably work just as well as the one cited by Teo.

Presumably, your wife will want her brush returned, so she can use it for make-up.  Obviously, you cannot share that brush; it has to be dedicated to cartridges or cheeks.  Therefore, you save no money by using the make-up brush on your stylus; your wife will have to go out and buy another brush.

I use a v small artist brush and a magnifier:

Joe Miller Signature Series 50/50, Round, Size 00 JMSR-2-0Half sable, half nylon, fine stiff tip
An efficient way to keep a stylus clean is to play clean records.

The small brush that comes with LYRA STP, looks like a small painters' brush, works well. I haven't tried it dry yet.