Detailed answer

To prevent hyperpigmentation during skiing or snowboarding, it is crucial to protect your skin from the sun's harmful rays. Apply a broad-spectrum sunscreen with an SPF of 30 or higher before heading out. Choose a sunscreen that provides protection against both UVA and UVB rays. Reapply every two hours and after excessive sweating or wiping your face. Wear protective clothing such as hats, goggles, and face masks to shield your skin from the sun and cold weather conditions. Additionally, consider using a hydrating moisturizer to keep your skin nourished and protected against dryness and windburn.