What is the difference between the two creams — can't I just use the day cream around my eyes?

The two products are formulated for different jobs. The skin around the eyes is thinner than the rest of the face and can be easily overloaded by heavy textures — a richer face cream applied there can feel heavy, migrate into the eyes, or cause makeup to crease. That is why the eye product in this set has a gel-cream feel: it delivers moisture to the contour without leaving a greasy layer, and it includes a green tea infusion that brings antioxidant polyphenols.

The day face cream, by contrast, has a richer character intended for cheeks and forehead. It is built around:

• hyaluronic acid, a water-binding molecule that helps the surface look plumper and feel less tight;
• aloe vera for light hydration;
• cocoa butter and almond oil, which soften and reduce the feeling of dryness;
• vitamin E, an antioxidant that also helps protect the formula's oils;
• chamomile for its soothing character and schisandra extract, traditionally valued in cosmetics for a toning effect on tired-looking skin.

You could technically use the face cream near the eyes, but you would lose the point of the pairing: a texture matched to delicate skin in one area and a more cushioning level of nourishment where the skin can handle it.