Jadryga, PMed you back! My only concern with oils from Grocery stores is that my Safety Assessor won't certify products unless they're from reputable suppliers. Joe Bloggs' Grocery store isn't enough, especially with the additives they put in oils, even though they don't state them in the ingredients lists. Thanks everyone for your comments. I'm adding some oil-based extracts and Organic oils soon. If anyone has queries about shipping or anything else, feel free to contact me. Best wishes, Sarah.