How Effective is the Product Line Fair and Flawless?

I have caramel skin tone, I am 18 years old. I want to go 2-3 shades lighter for my whole body including my face. So I wanted to know if anyone who tried the product line Fair and Flawless before? It's a very expensive product line, and from what the website is saying it seems oh so true and worth every penny. So please, I want answers from people who have used this product line, or know someone who has? Thanks. Bless you.

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