A tan is a sign of skin damage. There is no such thing as a safe tan. Tanning increases premature aging and skin cancer. Wear your sunscreen and adopt sun-protective behaviors, e.g., pick the shady side of the street, use a hat, etc.
Skin cancer is the most common cancer in the United States. One in five Americans will develop skin cancer. Three million people will develop non-melanoma skin cancer in a year. Make a it a priority to get your skin checked.
Skin cancer can develop on your lip. It is common but can be very aggressive. Make sure you use an SPF of 30 or greater in your lip protectant stick, particularly on the lower lip.
Even on cloudy days, when you are skiing, you get a much higher dose of ultraviolet from the increased altitude (5 % greater for every 1,000 feet of altitude) and from the reflection of light off the snow (30 % increase) so sunscreen is critical for health and protection. We can advise you on the best ones to use.