Powder foundation is made from pigments and minerals and is a completely dry formulation. You can purchase it in a pressed or loose powder form. You have to buff the powder out over your skin using a powder foundation brush.
This type of foundation is best for achieving light to medium coverage. A thin layer can give you that "your-skin-but-better" look. You can accomplish a full coverage look with powder, but it can take extra work. Before applying, you have to start with dry skin, so remove excess oil and apply a mattifying primer.
Powder foundation works well for people with oily skin since the formula allows it to absorb oil throughout the day. It can keep your skin looking matte if you struggle with shininess. It also won't melt off your face on a hot day, so you don't have to worry if you sweat a little.
A mineral powder foundation can work well for people with sensitive skin. This type of foundation generally has fewer ingredients than a liquid formulation. Fewer chemicals and preservatives mean there is less of a chance the product will irritate the skin.
However, if you have dry skin, you may want to stay away from powder foundation. This formulation can cling to dry patches, plus it doesn't offer any added hydration. It can also look cakey when poorly applied.
