Studies have shown that students have been more willing to take this rice purity test than to take a very private STD test because they felt the purity test results were more of a no judgement zone.
Russians come from a plethora of different people, but Slavs are the most common. Slavs traditionally have light brown or even blond hair, with only a smaller part of them endowed with dark hair from southern ethnicities, like so: Black hair color is actually pretty common, especially the further you go East.
The most common form of biological melanin is eumelanin, a brown-black polymer of dihydroxyindole carboxylic acids, and their reduced forms. Most are derived from the amino acid tyrosine. Eumelanin is found in hair, areola, and skin, and the hair colors gray, black, blond, and brown. In humans, it is more abundant in people with dark skin. Pheomelanin, a pink to red hue is found in particularly large quantities in red hair, the lips, nipples, glans of the penis, and vagina.