I used to wear powder everyday and on occasion, foundation, but recently I've started using Physician's Formula talc free mineral makeup powders.
It covers pretty well, but if you want a foundation-like finish, all I do is moisturize my face first with some Oil of Olay facial lotion with sunscreen to prep my face, tap some powder into my hand, squirt some Burt's Bees Lavender Facial Mist (lavender water, basically, with cedarleaf and bergamot essential oils) on top of the powder, and use a finger to mix, and apply it to my face. It makes a very flawless, un-makeup like finish. I then finish off with a little more powder and use my hands to set the makeup a little. The moisturizer prior to the powder is a must. It gives your skin a smooth, supple surface to work off of and keeps the makeup consistent looking.
The reason I use the lavender mist is because mineral makeup does well when it 'sets.' More expensive brands insist on using 'heavy water,' which is some fancy schmancy composition of water so it has a better molecular structure or whatever. It stabilizes the makeup and fixes it to your face better. It combines the heat from your hands too.
I just do my own version with the lavender water (which is good for your complexion anyway) and puts the right amount of moisture and light oils to fix the mineral makeup without my face getting chalky looking or dry. The other trick to mineral makeup is to really buff it in with a brush (one of the tutorials below will show you how to do this, really scrub it in with a brush). This bonds the powder to your skin and buffs the minerals to look more natural on your skin.
Try not to breathe the powder in. It's made of minerals, which is natural and good for skin, but try not to breathe it in so that it gets into your lungs. A little won't hurt, but when puffing the powder, don't suck it up.
I really like it! It beats the powders and foundations I used to use. I would have to reapply the powder all the time or else my face felt gross and with foundation, I just couldn't wait to take it off. I also like it because it's non-comedogenic, non-allergenic, and it isn't prone to so much bacteria as foundation/base is. Bacteria don't do well on minerals alone. There's no moisture or oils or other ingredients for bacteria to feed off of much on the mineral powder, so it stays 'fresh' longer. It costs a little more than a standard powder or foundation ($10-$12 for one powder pack) but it's worth it. I would buy an extra puff brush since the one in the powder case is small and you can't really scrub the powder in like the tutorial says to.
I bought the powder and a $3 blush brush (small) from Target. There are also many different bronzing effects (to give skin a glow and definition) and natural looking blush colors too.
If you set the makeup with warm/damp hands or some sort of mist, the mineral makeup does well throughout the day and doesn't make your face oily at all. It has natural sunscreen protection in it (some minerals block UV rays). If it fades away, it still doesn't make your face look bad. As advertised, you pretty much forget you have it on and it won't hurt to sleep in it if you forget to take it off or just take a nap.
Here's some information and resources:http://www.thecosmeticbag.com/http://www.organicmakeup.ca/CA/switchtoorganic.asphttp://www.azcentral.com/style/artic...16mineral.htmlhttp://www.mineral-cosmetic.com/http://community.livejournal.com/bar...tml?view=86203http://www.treehugger.com/files/2006...ions_on_or.php