This coverup powder is effective yes, to cover up dark spots or acne scars... but I'm not too sure if you would consider having your pores blocked effective.

I would not recommend this product for those who are acne pores as it does clog my pores. I only wear it when I have a night not.

Oil control, SPF and decent coverage in one - great to use over a tinted moisturizer. You only need a little bit of powder so one container could last years.

One of my favourites. I have problem area skin and it provides good coverage without looking cakey

Bare Escentuals offers an incredibly wide range of shades and colours of their bareMinerals READY foundation, fit to match any type of skintone or shade that you can imagine. The powder goes on in layers and offers anywhere between medium to full coverage, depending on how much you buff in. For me, the R250 is a perfect match! A huge benefit to this foundation is that it's SPF20, which is perfect for daily wear!

The package itself is in a clam-shell casing with a nicely sized mirror inside with a rather stiff latch.

I bought mine at Sephora, but I'm sure you can find it wherever other bareMineral products are sold.