* Major Supermarkets: Woolworths, Coles
* Pharmacies: Chemist Warehouse, Priceline Pharmacy
* Department Stores: Myer, David Jones (less common, but sometimes carry certain products)
* Discount Retailers: Kmart, Target
* Online Retailers: Amazon Australia, Catch.com.au, supermarket and pharmacy websites (e.g., Woolworths online, Chemist Warehouse online)
The specific products available and prices may vary between retailers, so it's worth checking a few different options to find what you're looking for at the best price.