Human chorionic gonadotropin, or hCG, is a remarkable glycoprotein hormone that plays an important role in the human body. Ascheim and Zondek were the first to find hCG in 1927. They found that it was made by the placenta and played a key role in the development of sex glands in young animals. Since then, people have called this hormone “Chorionic Gonadotrophin.” [R]

hCG has historically been linked to pregnancy and its impacts on reproductive processes. Recent research, however, has shed new light on its political ramifications. hCG or hCG-like substances have been found to be expressed not only in trophoblastic cells, but also in various normal human tissues, plasma from non-pregnant individuals, non-trophoblastic tumors, microbes, and even plants. While hCG shares structural similarities with three pituitary hormones, including LH (Luteinizing Hormone) and follicle-stimulating hormone (FSH), it possesses immunological and biological properties that distinguish it. Two chains make up the hormone: the alpha and beta subunits. All four glycoproteic hormones, including hCG, have virtually identical amino acid sequences in their alpha chains. However, variations in the sequences of the beta subunits contribute to the unique characteristics and functions of each hormone.[R]

It is essential to note that this information is intended solely for research purposes and not for human consumption. This article will look deeper into the intriguing world of hCG, examining its structure, functions, and evolving understanding of its presence outside of pregnancy. Join us as we explore this remarkable glycoproteic hormone and its implications for scientific research.

Key Features of  HCG Powder

RCD.Bio offers HCG with the following specifications:

  • A purity of 98%, verified by third-party laboratory testing.
  • Available in HCG Highly Purified Grade and HCG Peptide: 2000IU / 5000IU / 10000IU and 2000IU / 5000IU / 10000IU HCG
  • CAS Number: 9002-61-3
  • Molar Mass: 25719.70 g·mol−1
  • Chemical Formula: C1105H1770N318O336S26
  • IUPAC Name: (2S)-5-amino-2-[[(2S)-1-[(2S)-2-[[(2S,3S)-2-[[(2S)-1-[(2S,3R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-1-[2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-1-[(2S)-1-[(2S)-1-[(2S)-2-aminopropanoyl]pyrrolidine-2-carbonyl]pyrrolidine-2-carbonyl]pyrrolidine-2-carbonyl]amino]-3-hydroxypropanoyl]amino]-4-methylpentanoyl]pyrrolidine-2-carbonyl]amino]-3-hydroxypropanoyl]pyrrolidine-2-carbonyl]amino]-3-hydroxypropanoyl]amino]-5-carbamimidamidopentanoyl]amino]-4-methylpentanoyl]pyrrolidine-2-carbonyl]amino]acetyl]pyrrolidine-2-carbonyl]amino]-3-hydroxypropanoyl]amino]-3-carboxypropanoyl]amino]-3-hydroxybutanoyl]pyrrolidine-2-carbonyl]amino]-3-methylpentanoyl]amino]-4-methylpentanoyl]pyrrolidine-2-carbonyl]amino]-5-oxopentanoic acid

How HCG Work?

HCG, short for human chorionic gonadotropin, is a glycoprotein that can be found in the urine of pregnant women. While its main role is related to the functioning of the gonads, such as the differentiation of Leydig cells and the induction and maintenance of testicular androgens, it has also been used in the treatment of Froehlich’s syndrome.[R]

HCG, a type of gonadotropin, is used to treat hypogonadotropic hypogonadism in men. When discussing the pharmacodynamics of HCG, we refer to its physiological effects. In a study examining the steroidogenic response, researchers investigated the ability of HCG to stimulate testosterone production (T). As measured by an increase in serum testosterone levels, HCG may promote steroidogenesis, thereby facilitating the treatment of male hypogonadotropic hypogonadism.[R]

In the field of in vitro fertilization (IVF) treatment, hCG plays a crucial role in triggering the final maturation of oocytes (eggs) and providing support during the luteal phase. The administration of hCG injections can be done through either intramuscular (i.m.) injection or subcutaneous (s.c.) injection [R]. This allows for flexibility in the method of delivery, with intramuscular injection being the most commonly used approach. Both intramuscular and subcutaneous administration of hCG has been utilized in IVF treatment to effectively trigger the final maturation of eggs and provide support during the luteal phase. [R

In conclusion, HCG is a glycoprotein with important clinical roles in gonadal functions. Its effects on the body, known as pharmacodynamics, include stimulating testosterone production. In IVF treatment, hCG is used to trigger the final maturation of eggs and support the luteal phase. The administration of hCG can be done through intramuscular or subcutaneous injection, although the exact pharmacokinetics and bioavailability of the drug after s.c. injection remains somewhat uncertain. Further research is needed to clarify the precise site of drug deposition and enhance our understanding of how hCG works in different contexts.

The scientific basis behind the benefits of HCG

Numerous research investigations and trials on animals suggest that HCG may have a number of benefits. 

HCG and  Recurrent miscarriage

Recurrent miscarriage (RM) refers to the loss of three or more consecutive pregnancies before 24 weeks of gestation. Various strategies, including the administration of hormones involved in maintaining pregnancy, have been employed to prevent RM. Human chorionic gonadotrophin (hCG) is one such hormone; it is essential for the sustained production of progesterone by the corpus luteum and may also play a role in embryo implantation.

A review of five randomized controlled studies involving 596 female test subjects was conducted to assess the effectiveness of using hCG for preventing recurrent miscarriage (RM). The results showed a potential benefit when using hCG compared to placebo or no treatment. However, when less reliable studies were excluded from the analysis, the evidence of this benefit became less clear. Therefore, firm recommendations regarding the use of hCG for preventing RM cannot be made at this time. Further research is needed and should be carefully considered and monitored [R]

HCG and Hypogonadism

The low testosterone levels and infertility associated with hypogonadism have prompted research into the use of HCG, or human chorionic gonadotropin, as a possible therapy. HCG’s propensity may restore testosterone production and raise sperm count may be helpful in lowering infertility, which explains why it is so widely administered in research.

A study conducted in 2018 explored the use of HCG either alone or in combination with testosterone in male test subjects with hypogonadism. The findings indicated that HCG treatment could help male subjects maintain their fertility, even when administered as a standalone therapy. Additionally, the study suggested that HCG may contribute to reversing low sperm count and increasing sperm count, which are vital factors in possibly addressing infertility.[R] 

This highlights the potential benefits of using HCG as a treatment for hypogonadism-related symptoms in men. It has demonstrated the ability to increase testosterone production, support fertility, and improve sperm production and count. However, because test subjects react differently to HCG therapy, more study is required to fully understand its effects.

HCG and Sexual Dysfunction

In a double-blind, placebo-controlled study conducted on forty-five individuals experiencing nonorganic failure or lack of sexual desire, subjects were treated for one month with either human chorionic gonadotropin (HCG) or a placebo. The study found that HCG potentially yielded better results compared to the placebo, improving a greater number of sexual parameters. This suggests the potential usefulness of HCG as an option in the sexological treatment of erectile failure and low sex drive.

The study’s findings indicate that HCG may have a positive impact on sexual dysfunction, specifically in cases of nonorganic failure or lack of sexual desire. By administering HCG to the subjects, improvements were observed in various sexual parameters. Although the specific details of these parameters were not outlined, the study suggests that HCG has the potential to be beneficial in addressing issues related to erectile failure and low sex drive.[R]

Note that this study used a double-blind, placebo-controlled design, which helps reduce bias and boost confidence in the results. However, more studies are needed to confirm these findings and learn more about how HCG may help with sexual dysfunction.

HCG and Testosterone Deficiency

HCG may have the potential to improve testosterone deficiency in individuals with testosterone levels above the diagnostic threshold for hypogonadism. By acting as an analogue of LH, HCG can stimulate the body’s natural testosterone production, which may help address symptoms associated with low testosterone levels. However, it is important to note that further research is needed to fully understand the efficacy, safety, and long-term effects of using HCG for this purpose.

The American Urological Association (AUA) recommends considering testosterone replacement treatment for male test subjects with a total testosterone level of less than 300ng/dL. Similar to the naturally occurring pituitary hormone luteinizing hormone (LH) from the pituitary gland, human chorionic gonadotropins (HCG) stimulate the testicles to make more testosterone. The use of HCG has been linked to a rise in natural testosterone production in test subjects.[R]

It is crucial for individuals experiencing symptoms of low testosterone or suspected hypogonadism to consult with healthcare professionals for proper evaluation, diagnosis, and guidance on the most suitable treatment options. Testosterone deficiency can have various underlying causes, and the appropriate treatment approach should be determined on an individual basis, taking into account factors such as overall health, potential risks, and benefits. The effects of HCG on male fertility and the best methods for treating low testosterone levels are still little understood, thus further study is warranted in both of these areas.

HCG and Obesity

Human chorionic gonadotropin (HCG) has been studied as a possible treatment for obesity, therefore researchers decided to do a meta-analysis to see if there was sufficient evidence to justify its use. This study analyzed the effects of the HCG diet on obesity by reviewing published articles from controlled and uncontrolled studies. Results from research on slimming down, fat shifting, hunger, and general happiness were evaluated for reliability.

Most of the studies had poor methodological quality, and only one out of the better-quality studies reported that HCG was helpful in treating obesity. Overall, there is no scientific evidence to support the effectiveness of HCG in weight loss, fat redistribution, reducing hunger, or improving well-being.[R]

In simpler terms, the analysis found that there is no scientific proof that HCG works for weight loss in obese individuals. The majority of the studies were not well-designed, and even the better-quality ones did not show significant benefits from using HCG. Therefore, it is better to focus on proven methods such as low-calorie diets and lifestyle changes for weight loss. Further research is needed to understand HCG’s impact on hunger hormones and its effect on humans.


The information presented here is for educational purposes only and should not be construed as medical advice. HCG is intended for laboratory research use only and is not intended for human consumption.

Potential side effects

Using HCG can have both good and bad effects, depending on how it is used. It’s important to know about possible allergic reactions, which can show up as a rash, itching, or hives on the skin. In severe cases, the face, lips, or tongue may swell, and it may be hard to breathe, which needs medical help right away. Another thing that might happen if you take HCG is that your breasts might get bigger, which can be scary for some people. Also, giving HCG to a man might cause his penis and testicles to get bigger. Some people may also have pelvic pain or feel bloated. Nausea and vomiting are known side effects. HCG could also cause you to grow taller or gain weight in ways you didn’t expect. Lastly, some people who used HCG had trouble going to the bathroom, or their urine output changed. [R]

Where Can I Buy HCG Online? offers HCG for laboratory research use only.

When buying HCG, it is important to choose a reputable seller who provides quality HCG. At, each product is accompanied by a third-party-issued Certificate of Analysis showing the identification, purity, and concentration of our product.


HCG, or human chorionic gonadotropin, is a glycoprotein found in the urine of pregnant women. It has different effects depending on its use. In the treatment of male hypogonadism, HCG stimulates testosterone production, which can help address low testosterone levels and infertility. In in vitro fertilization (IVF) treatment, HCG is used to trigger the final maturation of eggs and support the luteal phase. The administration of HCG can be done through intramuscular or subcutaneous injection.

When considering the benefits of HCG for preventing recurrent miscarriage, studies have shown potential benefits, but more research is needed to make firm recommendations. It is important to monitor and consider the safety of using HCG in future research.

While using HCG, it is crucial to be aware of potential side effects, such as allergic reactions, breast enlargement, enlargement of the penis and testes in males, nausea, vomiting, pelvic pain or bloating, sudden increase in height, sudden weight gain, and changes in urination patterns. These effects may vary among individuals.


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