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Ethynyl estradiol is a synthetic form of the naturally occurring female sex hormone, estradiol. It is a type of estrogen, which plays a crucial role in the development and maintenance of the female reproductive system. Ethynyl estradiol is commonly used as a component in various hormonal contraceptives, including birth control pills and contraceptive patches.
As a synthetic estrogen, ethynyl estradiol helps regulate the menstrual cycle and prevents ovulation. It also contributes to changes in the cervical mucus and uterine lining, making it more difficult for sperm to reach the egg and for a fertilized egg to implant in the uterus.
It's important to note that ethynyl estradiol is often combined with a progestin (a synthetic form of progesterone) in contraceptive formulations. The combination of ethynyl estradiol and a progestin provides a more effective method of preventing pregnancy compared to using either hormone alone.
1. Are you a manufacturer or trading company?
A: We are a manufacturer and welcome to visit our factory.2. How to confirm the product quality before placing an order?
A: We can provide you with the sample. Also, we have the inspection report issued by the authoritative third-party testing agency.
3: What's your MOQ?
A: It depends on different products. We accept sample orders. Also for some products, we can provide you with a free sample.
4:Do you provide after-sales service?
A: We provide 24-hour customer service. If you encounter any product quality problems or transportation problems, please feel free to contact us.
5:How about delivery time and method?
A: We usually ship within 3-5 working days after payments.
We can make ships by sea, air, and express. Also can make door-to-door shipping.
6:How to solve the after-sale disputes?
A: We accept changing or refunding services if there is any quality problem.
