My skin tans easily, but I don't want it to. What is the best kind of lotion/block that I can use to prevent?

My skin tans easily, but I don't want it to. What is the best kind of lotion/block that I can use to prevent?
If you are out in the sun a lot, you should use high SPF lotions (~30), Olay makes some good ones for your face (they won't clog your pores). You should also wear a sun hat and shirt if out for a prolonged time, as lotions might have limited protection, even with high SPF ratings.
You are lucky if you tan easily. Your skin is pigmented, but doesn't need sunlight - that will only damage with time.
Use an sunblock with an SPF of 25 or greater always.
use a sun screen