If you want to cover up pimples, birthmarks, or other unwanted things, then a concealer is the way to go. This product was not tested on animals.
From Amazon
Urban Decay Stay Naked Correcting Concealer, Long-Lasting Matte Finish that Blends in With Your Skin Tone, Shade: 50NN, 10ml
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Urban Decay Stay Naked Concealer (Various Shades) - 50NN