Leptin (German, English: Leptin, Spanish: Leptina, from Greek: λεπτός (leptos) “skin”, also known as leptin) is a newly discovered protein hormone. Its function is to regulate fat storage, accelerate biological metabolism, suppress appetite, and control weight.

FAQ
Q1: MAY I GET ONE SAMPLE BEFORE PLACING ORDER?
Re: Yes, we’d like to provide sample for you. For those normal products, you just need to bear the freight; for those high value products, you just need to freight and a ite product cost. When we both cooperate for some times or when you are our VIP customer, free sample will be offered when you need.

Q2: WHICH PAYMENT IS AVAIL ABLE FOR YOUR COMPANY?
Re: In order to prompt our cooperation, there are some payment methods for your choice. T/T(USD), West- erm union, Paypal, Credit card, Alipay or Alibaba trade insurance all is ok. You can choose the one which is convenient for you.
Q3: HOW AND WHEN CAN I GET MY GOODS AFTER PAYMENT?
Re: For small quantity products, they will be delivered to you by intermational courer(DHL, FedEx, TIT, EMS, etc.) or by air. Usually it will cost 2-5 days that you can get the goods after delivery. For large quantity products, shipment is better. It will cost days to weeks to come to your destination port, which depends on where the port is.
Q4: IS THERE ANY POSSIBLE TO USE MY APPOINTED LABEL OR PACKAGE?
Re: Sure. If needed, we’d like to use label or package according to your requirement.