The main difference lies in the texture and the speed of absorption. The fluid has a lighter consistency, spreads with less product and sinks in within seconds without leaving a greasy feel, making it comfortable for daily use and for normal or combination skin. The cream, denser and more nourishing, is usually preferred for very dry skin or in cold climates where an extra boost of hydration is wanted in addition to sun protection.
There is no single factor that works for everyone: it depends on skin tone, sensitivity and the expected exposure time. As a general guide, fair skin or skin not used to the sun benefits from an SPF 50, while skin already accustomed to it can maintain protection with an SPF 30, always reapplying every few hours and avoiding the midday hours.
The recommended amount is usually more than what is typically applied. Using too little product noticeably reduces the actual level of protection, even if the packaging states a high SPF. It's best to spread the fluid over several passes until all exposed skin is covered, without leaving any areas with a very thin layer, and to reapply every two hours or after swimming or sweating heavily.
It's possible, although it's not always the most comfortable option. Body formulas tend to prioritise fluid textures designed to cover a large surface quickly, while facial formulas often have a lighter or matte finish designed to work well with makeup. Using a body product on the face is possible, but it may not suit the specific needs of that thinner, more sensitive skin as well.
Yes. Clouds filter part of the visible radiation, but a significant proportion of UV rays still passes through cloud cover and reaches the skin. That's why it's recommended to keep up body sun protection during outdoor routines even when the sky is overcast, especially during prolonged activities such as walks, sport or outdoor work, to help prevent long-term photoageing.