Not quite, but almost, if it has been specially made. Such materials are often used for special advertising gimmicks, such as "See our best customer here" or "This is our employee of the month" and you can then see your own reflection. Our "simsa MetalPaper Silver High Gloss Mirror" is such a board with high mirror image sharpness. To achieve this, we use particularly high-quality raw materials, such as a carrier board that is already extremely homogeneous and super-smooth on the surface, even before it is metallised. This costs more, of course. For many projects, therefore, our "simsa MetalPaper Silver Standard Economy" is absolutely sufficient: silver metallic, light-reflecting, with mirror image, but the latter in not quite as high image sharpness. You can see the comparison here [LINK].
However, a glass mirror remains unsurpassed in terms of maximum image sharpness and lifelikeness and can never be replaced by a "paper mirror".