UV filters in a night cream may seem unusual, but they serve a specific purpose here. The neck and chest area is often exposed to light throughout the day and can show age-related changes earlier than the face. The UV filters in this formula add an extra layer against light-related stress, which is useful for that exposed area.
However, this does not mean the night cream replaces daytime sun protection. You apply it in the evening, and it stays on overnight; by morning you wash it off. So it cannot provide ongoing protection during the day. Use a separate sunscreen with adequate SPF as part of your morning routine, especially on the face, neck, and décolleté. This is even more important because the cream contains retinyl palmitate, a vitamin A derivative, and mature skin can be more reactive to sunlight.
Think of the UV filters as a supportive extra, not as your main sun defense. If you spend time outdoors, reapply sunscreen during the day as needed, and use protective clothing or shade when the sun is strong. This approach helps keep the benefits of the night cream from being undermined by light exposure.