Use broad-spectrum sunscreen SPF 30 or higher on the neck daily
Reapply sunscreen every 2 hours when outdoors
Wear a wide-brim hat or UPF clothing
Exfoliate gently 1 to 2 times per week
Use a vitamin C serum in the morning
Use niacinamide to help even skin tone
Use retinoids at night if tolerated
Apply moisturizer daily to support skin barrier
Avoid further sun exposure until the tan fades
Use aloe vera or soothing products if the skin is irritated
Consider products with lactic acid or glycolic acid for gradual brightening
Stay consistent for several weeks
See a dermatologist for persistent discoloration or uneven patches