Thanks Sensible801313 for your question! It is completely normal to feel a bit self-conscious about your hands, especially since we use them for everything, but it is actually quite common to have "wrinkled" knuckles at 20. The skin on the back of the hands is very thin and has few oil glands. If it gets dehydrated, those natural folds look much deeper. Look for hand creams containing ceramides, glycerin, or urea. Urea is particularly good for knuckles because it acts as a keratolytic, softening the thickened skin that can accumulate on joints. You can use the same active ingredients on your hands that people use for facial anti-aging like retinoids and Vitamin C. Applying a small amount of retinol or retinal to your knuckles at night can help stimulate collagen and improve skin elasticity over time. If the knuckles look dark or "ashy," a Vitamin C serum can help brighten the tone and protect against environmental damage. If topical treatments don't provide the results you're looking for, there are clinical treatments that can significantly improve skin texture. For example, chemical Peels that a professional-grade peel can exfoliate the outer layers of the skin, making the knuckles appear smoother and lighter. Skin boosters and mesotherapy also can be useful by involving micro-injections of hyaluronic acid just beneath the skin surface to provide deep, long-lasting hydration that plumps the area. Hope this was helpful! Best wishes, Dr Ali Sajjadian