nkg

A cheap and easy to import vitamins is to order them mail order in the UK, have them sent to a friend, who can use regular post to Thailand. A lot of UK companies like Lindens supply all their vitamins in flat, resealable packets that fit in the letterbox. Readily available on Amazon, ebay etc. It's easy to bundle several together and put them in a parcel. If you're ordering a year's supply, keep them somewhere cool (the fridge?) - hot weather can destroy vitamins.