The formula works at skin level in two complementary ways: it attracts moisture into the upper layers, then reduces water loss by laying a protective film over the surface. Glycerin is the main water-attracting ingredient; mineral oil, petrolatum and shea butter are the occlusive ingredients that help keep that moisture from evaporating too quickly. Grape seed oil and vitamin E add a lighter finish and support the way the skin surface feels.
Grape seed oil is valued in skincare mainly for its light texture and its content of fatty acids. Fatty acids contribute to maintaining the skin barrier, which is the outer structure that helps keep water in and irritants out. In this cream, grape seed oil helps balance the heavier occlusive ingredients, so the product can be used as a face and body cream rather than only a very heavy ointment.
Vitamin E in this type of formula does two things. On the skin, it is a well-known antioxidant that helps soften dry areas and leaves the skin feeling less dry and more flexible. It also helps protect the formula itself from oxidation, which is the natural process that can make oils go rancid over time. That is why it is often included in oil-based cosmetics.
Together, these ingredients are chosen for a simple goal: provide moisture retention and a softer skin surface. They do not change the structure of the skin or affect medical conditions. If you want a straightforward moisturizer with a mix of humectant, occlusive and emollient ingredients, this cream fits that purpose.