If you make any product you have to have your product approved/certified by an assessor who may be a chemist, toxicologist, pharmacist or GP. Basically he/she needs to check out any allergens, toxins etc in ingredients to ensure the product is safe for topical use. You need to keep a product information file (PIF), and list the way you made the product, i.e. recipe, the date and where you made it the sell by date, batch number and list each ingredient and who supplied the ingredients. You can get a material data safety sheet (MDSS) from some suppliers of essential oils for a small fee. Some suppliers also list these on the internet. For labels you need to list all ingredients (INCI names) in descending order - greatest to smallest, weight and batch number. Any scales used must be stamped for trade. If your product weighs say 100gms E the E = average weight. INCI is International nomenclature - a name allocated to botanical ingredient usually the Latin name.
If you choose to use bases made by another supplier (which say pre-certified) if you add essential oils you still have to have your end product assessed/certified for consumer safety.
As you can see there is quite a lot to it, a lot of paperwork to fill in and keep. As said before you need to check insurance to ensure you are covered for making products containing essential oils.
If I can think of anything else I will add it on later.
Binah
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