This cream takes two approaches: it attracts water into the upper layers of the skin and it reduces moisture loss from the surface.
The 4D hyaluronic acid is a blend of hyaluronic acid forms with different molecular sizes. Those different forms help attract and hold water at several levels of the skin's upper layers, which can make the skin feel plumper and look less creased when dehydration is the cause. The emollients in the formula then reduce water loss from the skin surface, so the hydration effect is not lost quickly.
Coenzyme Q10 is an antioxidant that occurs naturally in the skin. In cosmetic formulas, it is used to help support the skin's defenses against oxidative stress from external factors such as pollution and UV exposure. That kind of stress can contribute to an early tired-looking appearance, which is why Q10 is often included in day moisturizers.
Shea butter provides nourishing lipids. It softens the skin and helps reinforce the protective barrier. Together with the water-binding ingredients, this makes the cream suitable for skin that feels tight or less elastic because it loses moisture easily.