I used something called Stimulating Scalp Oil by Softsheen Carson. I found it at my local grocery store. Loved it so much I even used it as a facial moisturizer. It doesn't have any tanning properties and I think that would be a really bad idea if she is still in or has recently completed treatment.

I've been using a great moisturizer by a company named HeadBlade. They have a shiny and matte finish, depending on your preferences! It's super gentle, and doesn't smell at all. It's 95% perfect, but I wish it had an SPF factor for sun protection.

I haven't a clue about any tanning stuff.. sorry! I'm sure someone else might know :)