From the manufacturer:

LOTION I (LIGHT)

Refreshing lotion that moisturises and firms the skin, priming it for subsequent treatments. For oily and combination skin.

LOTION II (MOIST) 

Rich and smooth lotion that briskly firms the skin, saturating it with youthful moisture. For normal-to-dry or very dry skin.

Apply generously mornings and evenings. Follow with emulsion or cream according to skin type.