Great question! As long as you're using the correct moisturizer properly, an oil-based moisturizer should not make your skin feel greasy. However, there are some exceptions. For example, if you're new to oil-based products, you may experience a transition period where your skin adjusts its oil production. This is especially common if you're used to using products that strip your skin and are alcohol-based. Another example is if your skin is dehydrated it might feel dry and tight with a layer of oil on top. If this is true for you, make sure you're misting prior to moisturizing. This will help absorption. Last, our moisturizers are non-aqueous which means they don't contain water or fillers. So, a little goes a long way. Use as directed to make sure you're not using too much of the product.