To use this air cushion BB cream, simply press the puff gently onto the air cushion to pick up the product, then evenly apply it to your face. Remember to shake the air cushion well before first use for better results. When applying, start from the center of your face and blend outwards. As for storage, keep it in a cool and dry place, away from direct sunlight. If you have sensitive skin, it's advisable to do a patch test on your wrist first. Also, make sure to clean the puff regularly to maintain good hygiene and the quality of the product.