Exfoliate gently 2–3 times a week with lactic acid, glycolic acid, or salicylic acid
Moisturize daily with urea, lactic acid, ceramides, or shea butter
Apply a brightening cream with niacinamide, azelaic acid, kojic acid, or vitamin C
Use sunscreen on exposed knees every day
Reduce friction from kneeling, tight clothing, and rough scrubbing
Keep the area clean and dry
Use a retinoid at night if tolerated
Try a mild chemical peel or professional treatment from a dermatologist
Treat any underlying causes like eczema, insulin resistance, or obesity
Maintain consistent care for several weeks for visible improvement