maybe try SSKI
, 75mg per drop at 35.00 free shipping and they ship to canada..
450 drops in the 1 ounce bottle, even if you take 2 drops daily that's 150mg and lasts like 225 days. It's the same stuff I bought at beginning of July and I still have plenty left lol. I've even being doing 10 to 12 drops daily now.