Where can I buy Mac makeup?

I just wanted to know if its composition is any Mac store in Sydney as they appear to be faces lots of online and in stores .. plz help

Nordstrom

Mac Cosmetics

Clean & Clear Instant Oil-Absorbing Sheets 50 sheets $3.09 INDICATIONS: Clean & Clear Oil-Absorbing Sheets instantly soak up excess oil and remove shine from your face, without smudging makeup or leaving behind powder. Softer than paper, these silky sheets can be used easily around....