Is this a safe make-up method?

Ok I'm 16 right & I got rosy cheeks. It gets on my nerves but anyways I use eucerin lotion (u kno for red cheeks) & cover girl translucent powder. Is this a good combination? Sometimes if I'm blushing it doesn't matter how much I put on it won't work but usually it works. How does cover girl tru blend work because I'm thinking about using that. Thanx