Priceline will be your go-to for drugstore and low-end products. They'll be in most shopping centres. If you want to shop around and compare prices, Chemist Warehouse generally has cheaper Revlon, Maybelline and L'Oreal (among others, but that's all I can think of at the moment). Myer department stores also have ChiChi, an Australian low-end brand.

Myer and David Jones have high-end and luxury brands like Guerlain, Chanel and Dior.

For mid-range to high-end, Mecca Cosmetica and Mecca Maxima is our version of America's Sephora/UK's Space NK. Mecca Maxima stores have more trendy brands like Urban Decay and Too Faced, while Cosmetica has more high-end lines like Darphin. You'll find brands like NARS and Hourglass at both stores.

Sephora is also in Sydney and stocks brands that Mecca doesn't, like Becca, MUFE and Cover-FX. I prefer the Macquarie Centre store over the one in Pitt St Mall. (There's another in Broadway but I haven't been there yet.) PM Studio in Waterloo has a lot of the same brands as Sephora (Becca, MUFE) and the customer service is much, much better.

Online stores don't differ much in terms of prices and range. My go-to for mid-range is Adore Beauty — really good customer service and free shipping. I don't usually shop online for drugstore cosmetics as shipping doesn't make it worthwhile for me, but I've shopped at Crush Cosmetics a few times without any issues. :)