You are mixing up a couple of concepts here. The first is the need to form a business entity (corporation or LLC) for doing business. That just gives you general permission to do business.

The second is that there may be specific state or federal regulations/licenses that govern how you can operate your cosmetics business. You may need to do both. The fees are what they are -- they aren't scaled depending on (for example) how much business you're doing or how long you've been in business. Speak to a business attorney in your area so that you don't have to navigate this on your own.