Clarins total slimming cream: first raise your feet and apply slimming cream on your thighs. Speak with your hands and thumb on your lap. Put pressure on your thumb (and hold other fingers tightly) and slide in the direction of your thumb. Repeat this action from thigh to knee. As for your last question, let me tell you that, generally speaking, different brands of cosmetics have different effective ingredients, which may lead to product failure and even damage to the skin, so I suggest you try to use the same brand of things on your face.