You can buy grape seed extract at pharmacies and health food stores and supermarkets here. The only supplement I've noticed that I can't buy here is the methylcobalamin and certain hemp oil products.

It's actually cheaper to buy most things from the US though as it doesn't incur GST. Shipping is actually very inexpensive if buying through places like iHerb and if you buy a certain amount you get free shipping from time to time. I only mention that company as it's the one I use.

Reminds me of the story when someone asked me once online if we had icecream in Australia or if I'd ever heard of Bill Gates.