No, 500 MINUS 10 Jin simply means that you won't sign the contract after paying the money. Say 1000 before signing the contract. Then, the purpose is to let you buy essential oil and do it 28 times in 3980, saying that it is to improve the compactness. The key is to do it four times and be sure to control your diet. That recipe is no different from not eating. No effect, real feedback, just apply the medicine bag and massage a few times, no effect.