[Turbokittykat]

MSF = mineralize skinfinish

They're dome shaped powders used as cheek colours, highlighters etc. They give quite a "glowy" look.

Search for mineralize on eBay and you'll find some.

They're have been several collections which have included MSFs now, but because they are baked rather than pressed, they're difficult and slow to produce and are always LE. They're very popular so always sell out quickly.