Gently exfoliate the knees 2–3 times a week
Moisturize daily with a thick cream or lotion
Use products with lactic acid, glycolic acid, urea, or salicylic acid
Apply sunscreen to exposed knees every day
Avoid frequent kneeling or friction on the knees
Wear protective clothing or knee pads when needed
Keep the skin clean and well hydrated
Use a mild soap and avoid harsh scrubbing
Try a brightening product with niacinamide or vitamin C
Treat dryness and thickened skin consistently
See a dermatologist if the darkening is sudden, severe, or persistent
Get checked for underlying causes like insulin resistance or eczema if needed