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Oral Estradiol Female Sex Hormone 17α-estradiol Powders Weight Loss Steroids

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Oral Estradiol Female Sex Hormone 17α-estradiol Powders Weight Loss Steroids

Good Quality Oral Estradiol Female Sex Hormone 17α-estradiol Powders Weight Loss Steroids Sales

Large Image :  Oral Estradiol Female Sex Hormone 17α-estradiol Powders Weight Loss Steroids

Zhongshan Yuanyang Bio-pharmaceutical Technology Co., Ltd

Site Member


Business type: Manufacturer,Seller

Telephone : 86-0760-87919903

No. 88 wenxin road east ocean city zhongshan city guangdong province

Product Details:

Place of Origin: china
Brand Name: yuanyang
Certification: ISO
Model Number: 57-91-0

Payment & Shipping Terms:

Minimum Order Quantity: 1g
Price: Negotiated
Packaging Details: Safelyand Professionally Disguised Package Guaranteed
Delivery Time: Within 24 hours after payment
Payment Terms: Money Gram/Western Union T/T
Supply Ability: 5000kg/year
Detailed Product Description

Oral Estradiol Female Sex Hormone 17α-estradiol Powders Weight Loss Steroids
Quick Detail

1 ) Product name : Estradiol 
2 ) Other name : 17α-estradiol

3 ) CAS : 57-91-0

4 ) EINECS : 200-023-8

5 ) Molecular formula : C18H24O2

                     Weight Loss Female Sex Healthy Hormones 57-91-0 / 17α-Estradiol Steroids Powder

6 ) Molecular weight : 272.38

7 ) Melting point : 176-180 °C

8 ) Assay : 98%

9 ) Usage : A . Hormonal contraception
                    B . Hormone replacement therapy
                    C . Hormone replacement therapy in Male-To-Female Transsexuals
                    D . Blocking estrogens

Product description :

Estradiol, or more precisely, 17β-estradiol, is a human sex hormone and steroid, and the primary female sex hormone. It is named for and is important in the regulation of the estrous and menstrual female reproductive cycles. Estradiol is essential for the development and maintenance of female reproductive tissues[1] but it also has important effects in many other tissues including bone. While estrogen levels in men are lower compared to women, estrogens have essential functions in men as well


In the female, estradiol acts as a growth hormone for tissue of the reproductive organs, supporting the lining of the vagina, the cervical glands, the endometrium, and the lining of the fallopian tubes. It enhances growth of the myometrium. Estradiol appears necessary to maintain oocytes in the ovary. During the menstrual cycle, estradiol produced by the growing follicle triggers, via a positive feedback system, the hypothalamic-pituitary events that lead to the luteinizing hormone surge, inducing ovulation. In the luteal phase, estradiol, in conjunction with progesterone, prepares the endometrium for implantation. During pregnancy, estradiol increases due to placental production. In baboons, blocking of estrogen production leads to pregnancy loss, suggesting estradiol has a role in the maintenance of pregnancy. Research is investigating the role of estrogens in the process of initiation of labor. Actions of estradiol are required before the exposure of progesterone in the luteal phase.




Sexual development
The development of secondary sex characteristics in women is driven by estrogens, to be specific, estradiol. These changes are initiated at the time of puberty, most are enhanced during the reproductive years, and become less pronounced with declining estradiol support after the menopause. Thus, estradiol enhances breast development, and is responsible for changes in the body shape, affecting bones, joints and fat deposition. Fat structure and skin composition are modified by estradiol.


Male reproduction
The effect of estradiol (and estrogens) upon male reproduction is complex. Estradiol is produced by action of aromatase mainly in the Leydig cells of the mammalian testis, but also by some germ cells and the Sertoli cells of immature mammals.It functions (in vitro) to prevent apoptosis of male sperm cells.

Several studies have noted sperm counts have been declining in many parts of the world, and estrogen exposure in the environment has been postulated to be the cause.Suppression of estradiol production in a subpopulation of subfertile men may improve the semen analysis.

Males with sex chromosome genetic conditions, such as Klinefelters syndrome, will have a higher level of estradiol.


Estradiol has a profound effect on bone. Individuals without it (or other estrogens) will become tall and eunuchoid, as epiphyseal closure is delayed or may not take place. Bone structure is affected also, resulting in early osteopenia and osteoporosis.Also, women past menopause experience an accelerated loss of bone mass due to a relative estrogen deficiency.


Estradiol has complex effects on the liver. It can lead to cholestasis. It affects the production of multiple proteins, including lipoproteins, binding proteins, and proteins responsible for blood clotting.


Estrogens can be produced in the brain from steroid precursors. As antioxidants, they have been found to have neuroprotective function.


The positive and negative feedback loops of the menstrual cycle involve ovarian estradiol as the link to the hypothalamic-pituitary system to regulate gonadotropins.

Estrogen is considered to play a significant role in women’s mental health, with links suggested between the hormone level, mood and well-being. Sudden drops or fluctuations in, or long periods of sustained low levels of estrogen may be correlated with significant mood-lowering. Clinical recovery from depression postpartum, perimenopause, and postmenopause was shown to be effective after levels of estrogen were stabilized and/or restored.


Recently, the volumes of sexually dimorphic brain structures in phenotypical males were found to change and approximate typical female brain structures when exposed to estradiol over a period of months,suggesting estradiol has a significant part to play in sex differentiation of the brain, both prenatally and throughout life.


There is also evidence the programming of adult male sexual behavior in many vertebrates is largely dependent on estradiol produced during prenatal life and early infancy.It is not yet known whether this process plays a significant role in human sexual behavior, although evidence from other mammals tends to indicate a connection.





Product name



White crystalline powder


White or creamy white, crystalline powder


Melting point

173 ~ 179°C

178~ 179°C

Specific  rotation







97 .0~ 103.0%


Loss on drying



Related substances

total impurities ≤1.0%


any individual impurity ≤0.5%


Residual solvents

ethanol ≤0.5%



Competitive  advantage:


Packing: Professional packing with professional materials, and We'll give clients several Packing way to choose after you contact me through my email.


Quality: Our factory strickly control the production steroids,each batch of steriods can't be
allowed to sell before the batch have been checked by our QC department.Quality is satisfied enough.


Price: Best prices you're sure to be satisfied, the more you buy, the more competitive prices you get.


Delivery: We can pack your steroids products within 24 hours after your payment.





Contact Details
China Pharmaceutical & Chemical Online Market

Contact Person: Jiny Tien

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