How to Start a Skin Care Business?

So I make homemade skin products (lotions, masks, scrubs), and my friends said I should open up a shop and sell them because they use them and they like it.

But I was wondering, how? What would I need to do to start selling my products? I know I would need them to be approved by the FDA (i think), but other than that, what else?

Can someone put together an affordable mens skin care package for me?

I’d like to be more healthy and clean, so if you could make suggestions for mens skin products, that would be great. By the way, I’m sixteen years old.

Any good anti-aging skin serums or lotions for people with rosacea and sensitive skin?

I need a serum or lotion that will "lift"
I do have rosacea and sensitive skin though

Any good top of the line skin products I can use?

Perfect anti-aging face care for women in their late 20’s?

Women in their late 20’s, including myself, are having a hard time finding age appropriate, age defying skin products.

We don’t want something heavy duty thats meant for women in their 40’s and 50’s. No offense! hehe We want something light with gradual effects.

Can you recommend something?

Which anti-aging products have undergone scientific scrutiny?

I am 30 and have nice skin, but I'd like to keep it that way. I've been using sunblock for years, but I'm thinking of using anti-aging products as well. However I don't know which products have actually been researched using proper double-blind studies and which products companies are just saying are good.

Do you know which skin products have actual research backing them?