Hi Lukas,
Moisturizer is actually no longer just "a girl thing." Moisturizing your face on a daily basis will help promote hydration, skin cell regeneration, healing, and prevent damaging effects from external forces and weather conditions that lead to premature wrinkles, fine lines, and in extreme cases like skin cancer.
And if your looking for the best moisturizer for your skin...I actually can't tell you that...There are so many moisturizer right now...I suggest that you start experimenting with a couple of different moisturizing creams to determine which one is best for your skin type and that provide you the result that you are looking for.
Hope this helps you...Take care and God Bless.