Potato Starch Powder

Potato flour (also called potato starch) works as a translucent (colourless) powder with super mattifying properties. In fact, it is an ingredient in some cosmetic powders.

• Can be used on any skin type when you need that matt effect.
• It doesn't block pores, and doesn't irritate the skin.
• Unlike most powders, it doesn't deactivate sunscreen by reacting with its components.Minerals like talc, mica, tin oxide in loose & pressed powders can interact with Parsoll1789 (avobenzone or butyl methoxydibenzoylmetane) contained in UVA filters.
• You can mix it with your usual coloured face powder, or it can form a barrier between your skin and powder, bronzer & blush.
• Is a great replacement for talc-based powders. Talc may block pores and is carcenogenic.
• Applied by itself, it is odourless, and invisible on the face (applied in sensible quantities, of course).
• It matts the skin in a different way than normal powders: matts the oiliness, but doesn't remove that healthy glow. 
• Use it to matt the skin after protecting it with sunscreen.
• For a darker tint, add some cinnamon.
• 
      I've not tried this one myself (yet !) but loads of girls have tried it at the forums at wizaz.pl. Most have been using matt powders & compacts, and they were pleasantly surprised when they tried potato flour. Acc. to the wizaz girls it matts better and longer than most powders, and keeps everything matt all day long except the oiliest noses.

• How-to:

  • Best used after a cream or foundation, (otherwise it can dry out the face)
  • If it is clumpy, sieve it with a fine sieve.
  • Most wizaz girls recommend applying it with a sponge or fluff (easier than with a brush, but you can use that too), and slightly pressing it into the skin.
  • Rub it in with your fingers if you see any marks, or if it gather in folds & creases.  
  • Now, you can use bronzer, blush or whatever.