on main lable on front of the container for ALL products: Company name and address, product name. Weight goes in bottom third of the label and it's a good idea to list in ounces and grams
if it's a soap, the labeling is regulated by the FTC (if you're not making cosmetic claims) you can list ingredients if you want but are not required to and you do not need to use inci names.. so if you want to say "saponified oils of Palm, coconut, you can..
HOWEVER if you have made any cosmetic claims whatsoever it is regulated by the FDA and you must use inci names.. You can use the ingedients as they went in to the soap pot (sodium hydroxide, palm oil, coconut oil, etc) or you can list what comes out of the soap pot: sodium tallowate, sodium palmate, sodium castorate (seriously sodium castorate???) you need to use inci names from the second edition or later, which gives you a lot of options on how you can label, but remember if you're making a cosmetic claim, you can not list it as "saponified oils of:" since that is not anywhere in the inci.
Ingredient list can go on the side panel. if you use a preservative system, you must list every ingredient in the system, not just "optiphen"
ok, now if your product makes any kind of insect repellant claims, then it's regulated by the EPA and there's a whole different set of rules there...
I have a book on labeling for FDA requirements if you have any other specific questions, I'll be glad to look it up for you.