For example if we have x=953, I want to select specifically the first digit (or the last two) and save it in another variable, so the outcome would be y=9 (or y=53)
Hydroquinone has also been linked to a medical condition in humans called ochronosis. This condition has actually been found in humans, not rodents, but the evidence is inconclusive at the moment. Ochronosis is a condition where the affected skin darkens in color, and also becomes thicker in texture.
NOTHING has ever made such a difference in terms of luminosity, clarity and diminishment of hyperpigmentation like Hydroquinone. I have always used serums (vitamin C, Ferulic acid, etc) , retina, AHC and sunscreens so my skin generally looks good but I always had some hyperpigmentation on my upper cheekbones.