A testicular action was linked to circulating blood fractions – now understood to be a family of androgenic hormones – in the early work on castration and testicular transplantation in fowl by Arnold Adolph Berthold (1803–1861).[181] Research on the action of testosterone received a brief boost in 1889, when the Harvard professor Charles-Édouard Brown-Séquard (1817–1894), then in Paris, self-injected subcutaneously a "rejuvenating elixir" consisting of an extract of dog and guinea pig testicle. He reported in The Lancet that his vigor and feeling of well-being were markedly restored but the effects were transient,[182] and Brown-Séquard's hopes for the compound were dashed. Suffering the ridicule of his colleagues, he abandoned his work on the mechanisms and effects of androgens in human beings.

Such sort of injuries varies in severity and extent of damage markedly from one person to the other and withdrawal of the drug/supplement coupled with proper medical attention suffice in terms of alleviating the symptoms.[8,12] This was observed in the present case. However, the liver injury observed here may not be confidently linked to product consumption as the subject later reported that the following recovery he consumed two more courses of the booster with no side effects. Tests performed following hospital discharge, and repeated use of the product showed AST and ALT to be slightly high, whereas the rest of the blood parameters tested appeared to be normal. The AST/ALT ratio is considered to be a very important parameter for the evaluation of liver diseases, such as non-alcoholic fatty liver disease,[13] though it is rarely considered alone. Overall, the evidence was inconclusive in the present work in terms of linking the use of a testosterone booster with liver injury. However, even though a single case report cannot establish causality with statistical power.[13] Further research on the usage of a commercial testosterone booster within large populations for a long period is necessary to investigate whether the symptoms shown in the present case were significantly present in other athletes consuming the same commercial product or not. To guarantee an optimal outcome with no severe side effects, further research is warranted to confirm the present findings and determine whether the effects observed in this case report would be statistically significant in larger samples.

All the active substances available in TestoGen are fully natural. And their efficacy and safety is science-backed. So, if you don’t have individual sensitivity to the supplement ingredients and purchase the product directly from the manufacturer instead of purchasing from unknown suppliers, the likelihood of side effects during the supplementation is minimal. And the customer feedback proves this.
Currently available testosterone preparations in common use include intramuscular injections, subcutaneous pellets, buccal tablets, transdermal gels and patches (see Table 2). Oral testosterone is not widely used. Unmodified testosterone taken orally is largely subject to first-pass metabolism by the liver. Oral doses 100 fold greater than physiological testosterone production can be given to achieve adequate serum levels. Methyl testosterone esters have been associated with hepatotoxicity. There has been some use of testosterone undecanoate, which is an esterified derivative of testosterone that is absorbed via the lymphatic system and bypasses the liver. Unfortunately, it produces unpredictable testosterone levels and increases testosterone levels for only a short period after each oral dose (Schurmeyer et al 1983).
The mechanism of age related decreases in serum testosterone levels has also been the subject of investigation. Metabolic clearance declines with age but this effect is less pronounced than a reduction in testosterone production, so the overall effect is to reduce serum testosterone levels. Gonadotrophin levels rise during aging (Feldman et al 2002) and testicular secretory responses to recombinant human chorionic gonadotrophin (hCG) are reduced (Mulligan et al 1999, 2001). This implies that the reduced production may be caused by primary testicular failure but in fact these changes are not adequate to fully explain the fall in testosterone levels. There are changes in the lutenising hormone (LH) production which consist of decreased LH pulse frequency and amplitude, (Veldhuis et al 1992; Pincus et al 1997) although pituitary production of LH in response to pharmacological stimulation with exogenous GnRH analogues is preserved (Mulligan et al 1999). It therefore seems likely that there are changes in endogenous production of GnRH which underlie the changes in LH secretion and have a role in the age related decline in testosterone. Thus the decreases in testosterone levels with aging seem to reflect changes at all levels of the hypothalamic-pituitary-testicular axis. With advancing age there is also a reduction in androgen receptor concentration in some target tissues and this may contribute to the clinical syndrome of LOH (Ono et al 1988; Gallon et al 1989).

There’s a significant failure rate of the PDE5 inhibitors for erectile dysfunction, something on the order of 25% to 50%, depending on the underlying condition. It turns out that a third of those men will have adequate erections with testosterone-replacement therapy alone and another third will have adequate erections with the pills and testosterone combined. There’s still a third who don’t respond, but normalizing their testosterone level has definitely rescued many men who had failed on PDE5 inhibitors.
Hello..was prescribe andro gel 1.62 for about 2 years..borderline low..At time 54 year old now 57..a year ago switched doctors..new doctor would not prescribe andro gel..without me stopping use and then being checked after 6 months..it’s been a year..by the way felt great while on it much more energy. .did notice some hair receding. .but felt stronger..my question is..by using andro gel ..did I turn off my body’s natural ability to make testosterone as using andro gel..if so what do I need to do too turn my body on if my doctor does not renew therapy. .by way the past without andro gel…little too no energy..weight gain of 40 lbs..especially around the belly..thank you for your time and reply
Advanced BCAA’s are made from a hydrolyzed whey protein isolate.  Its 100% whey protein really.  But the amazing thing about this hydrolyzed whey isolate is that it is a whopping 50% BCAA!  Incredible really.  A pre digested whey protein that is 50% BCAA.  Normally hydrolyzed whey protein is only 30% BCAA.  Thus for every 10 grams of Advanced BCAA you are getting 5 grams of pre-digested BCAA peptides.  NOT free form amino acids from China.  Why is this so exciting and valuable to your bodybuilding goals?
Everytime you add Testosterone to your system, be it naturally through producing in the testis, injected, oral, or dermal you will receive a spike in your blood levels. Estrogen is mainly created in men by an action of an enzyme called Aromatase. Aromatase floats around and binds to Testosterone and converts it to Estrogen. When you spike your T your E will follow in this way. The obvious and detrimental effects to many of the already estrogen dominant hypogonadal men will be inappropriate over stimulation of the estrogen receptors in the body. Gynecomastia, fluid retention, weight gain, brain fog, erratic emotions, depression, ect. Higher levels of Estrogen cause SHBG to be created. SHBG binds to Testosterone and transports it to the liver for disposal. On top of this Estrogen can bind to your androgen receptors causing Testosterone to float around with no where to go. If you are taking shots or gel or cream and feel little to no effect even though it’s technically raised your T blood ranges, you now have an multiple answers for why you little to nothing or feel even worse. This has been known for years that you must be prepared to control Estrogen. An Aromatase Inhibitor (AI) or anti estrogen medication (Clomiphene, Tamoxifen) is needed to stop the estrogen from getting out of control. By taking an Aromatase inhibitor and monitoring your E2 levels you can easily control Estrogen, Aromatase, and SHBG from getting out of hand and free up those blocked androgen receptors so you can now reap the benefits of elevating T to a healthy level. If your Doctor is not testing your E2(aka Estrogen, Estradiol) levels before and during talks and administration of TRT or will never prescribe an AI then you shouldn’t be following his advice at all and will be harmed by Testosterone usage. This may sound complicated but in the end it’s simple. Elevate Testosterone. Control Estrogen. Only two medications needed. Don’t settle.
There are the testosterone deficiency signs, such as loss of sexual desire, erectile dysfunction, impaired fertility, chronic fatigue, etc. But it’s not always possible to understand which medical condition caused the decrease in testosterone levels. For example, if you always feel exhausted and have no sexual desire, it may provide evidence of depression.
With the exception of increasing my fat and cholesterol intake, my diet wasn’t that unconventional. I didn’t follow a strictly low-carb or Paleo diet because recent research has suggested that a diet high in protein and low in carbs actually causes T levels to decrease. With that said, I was judicious with the carbs. I tried to get most of my carbs from veggies and fruit, but I didn’t freak out if my wife made us spaghetti for dinner.

It's important to understand that your body requires saturated fats from animal and vegetable sources (such as meat, dairy, certain oils, and tropical plants like coconut) for optimal functioning, and if you neglect this important food group in favor of sugar, grains and other starchy carbs, your health and weight are almost guaranteed to suffer. Examples of healthy fats you can eat more of to give your testosterone levels a boost include:
Ginger (also known as Zingiber officinale, family: Zingiberaceae) has been widely consumed as a dietary spice, delicacy, and as a traditional oriental medicine. The rhizome can be used fresh, dried or powdered. Ginger is often applied for treating nausea due to caused by morning sickness during pregnancy, chemotherapy and seasickness. The ginger rhizome also contains several biologically active compounds such as gingerol, shogaols, gingerdiol and gingerdione [22].

It’s worth emphasizing that these supplements are totally legit. They’re NOT steroids. Meaning, only the natural and harmless ingredients have been used to make these products, which can help the guys dealing with the low testosterone problems, such as low energy, fatigue, muscle loss, irritability, and similar. Usually, the guys tend to start experience these problems in their late 20s and in some cases in their early 30s.


Sharma, R., Oni, O. A., Gupta, K., Chen, G., Sharma, M., Dawn, B., … & Barua, R. S. (2015, August 6). Normalization of testosterone level is associated with reduced incidence of myocardial infarction. European Heart Journal, 36(40), 2706-2715. Retrieved from https://academic.oup.com/eurheartj/article/36/40/2706/2293361/Normalization-of-testosterone-level-is-associated
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