Wash the neck daily with a gentle cleanser
Exfoliate 2 to 3 times per week with a mild scrub or chemical exfoliant
Use a soft washcloth to remove dead skin
Apply a moisturizer after cleansing
Use sunscreen on the neck every day
Avoid harsh soaps and strong scrubbing
Keep the neck dry and clean after sweating
Wear loose, breathable clothing
Reduce friction from collars, jewelry, and scarves
Use products with ingredients like glycolic acid, lactic acid, salicylic acid, niacinamide, or urea
Check for insulin resistance, diabetes, or hormonal causes if darkening is persistent
See a dermatologist if the skin is thick, velvety, itchy, or does not improve