Using this skincare set is easy. First, take a small amount of the essence and gently pat it onto your clean face and neck until fully absorbed. This will help your skin absorb the following products better. Next, apply the face cream. Take an appropriate amount and spread it evenly on your face, massaging it in circular motions until it's completely absorbed. For the eye cream, use your ring finger to gently dab a small amount around your eye area. Remember to use gentle pressure as the skin around the eyes is very delicate. As for precautions, avoid contact with eyes. If you have sensitive skin, it's a good idea to do a patch test first. Store the products in a cool, dry place away from direct sunlight to maintain their quality.