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.
Can glycolic acid and hydroquinone 2% improve acne scars and hyperpigmentation together? I have backne dark spots and acne scars. Using Glicolic acid 70% once a week for not more than 7 minutes helped me to lighten the area.