Testosterone Propionate is often referred to as a "mild" option for women due to its short ester and rapid elimination. The editors consider this myth one of the most dangerous in the sports environment: a woman's body reacts to androgens completely differently than a man's, and some of the changes they cause remain forever. We analyze why this happens and what to pay attention to.
Why women are particularly sensitive to androgens
In a healthy woman, testosterone is produced by the ovaries and adrenal cortex, but its concentration in the blood is about ten to twenty times lower than in a man. Androgen receptors in female tissues are fully functional. Therefore, even a relatively small additional supply of the hormone means for a woman a multiple excess of her own level.
The male body is adapted to high concentrations of androgens: it has the usual balance between testosterone, dihydrotestosterone and estradiol. A woman does not have such a "reserve of strength". The skin, hair follicles, larynx, clitoris and mammary glands respond to the growth of androgens quickly and noticeably.
It is also important that women have a higher concentration of sex hormone-binding globulin (SHBG). Exogenous testosterone reduces the level of this protein, so the proportion of free, biologically active hormone increases even more than total testosterone in the analysis. Because of this, the standard indicator in the form may underestimate the real androgenic effect.
Finally, androgens inhibit the hypothalamic-pituitary-ovarian axis. The production of luteinizing and follicle-stimulating hormones is disrupted, along with ovulation and the regularity of the menstrual cycle. That is, the impact is not limited to appearance: it affects the reproductive function as a whole.
Propionate: why a short ester does not make it safe
Testosterone propionate is an ester of testosterone with propionic acid, the shortest among common injection forms. After administration, it is quickly released from the oil depot, and the concentration of the hormone in the blood increases sharply, and decreases in a few days. It is this speed that gave rise to the idea that propionate can be "stopped in time" if side effects appear.
In practice, this idea does not stand up to criticism. Short acting just means that hormone levels drop faster after withdrawal. But the processes that androgens have already started in the tissues do not stop with the drop in concentration. Growth of a hair follicle, thickening of the vocal cords or enlargement of the clitoris are structural changes, not a temporary reaction.
Also, short ester means high peaks. Immediately after the injection, the concentration of testosterone in a woman can be several times higher than the physiological one. For androgen receptors in the larynx or skin, it is not the average level for a week that counts, but the long-term exposure to high concentrations that are repeated regularly.
Editor's note: no testosterone ester has a "feminine" profile. The differences between propionate, enanthate or undecanoate only concern the rate of release, and the active substance itself is the same - testosterone with all its androgenic properties. The notion of "light" esters is a marketing myth, not pharmacology.
Signs of virilization: reversible and irreversible
Virilization is the development of male secondary sexual characteristics in a woman under the influence of androgens. It develops gradually, and the first symptoms are often perceived as small things: a little more acne, oilier skin, a few new hairs on the chin. However, it is important to stop at this stage, because further changes become deeper.
The most well-known irreversible consequence is a change in voice. Androgens cause thickening of the vocal folds and changes in the larynx, due to which the voice becomes coarser, the range narrows, hoarseness appears. After withdrawal of the hormone, these changes, as a rule, do not disappear. For singers, teachers, and announcers, this can mean a professional loss.
| Sign | How it presents | Reversibility after stopping |
|---|---|---|
| Acne, oily skin | Rash on face, back, chest | Usually reversible |
| Menstrual disturbance | Irregular menstruation, amenorrhea | Often reversible, but not always quickly |
| Hirsutism | Growth of terminal hair on the face, chest, abdomen | Partially; the hair that has grown often remains |
| Androgenic alopecia | Thinning of hair on the crown, baldness | Partially |
| Voice change | Coarseness, hoarseness, loss of high notes | As a rule, irreversible |
| Clitoromegaly | Enlargement of the clitoris | As a rule, irreversible |
Documents about the state doping program of the GDR, which were analyzed by Franke and Berendonk, became documentary evidence of the scale of the problem. Among female athletes who were given androgens, including during adolescence, voice hoarseness, hirsutism, cycle disorders and other persistent consequences have been described. This story clearly shows that even under the supervision of doctors it was not possible to avoid virilization.
Another less common sign is a change in body proportions and increased muscle mass in the shoulder girdle. By itself, it is not harmful, but in combination with other symptoms, it indicates that the androgen load significantly exceeds the physiological one.
Systemic risks for the female body
In addition to external changes, an excess of androgens affects metabolism and the cardiovascular system. The Endocrine Society's scientific statement on performance-enhancing drugs (Pope et al., 2014) emphasizes that the long-term effects in women are much less well studied than in men, and therefore the true risk may be underestimated.
The main systemic effects you should be aware of:
- Lipid profile: decrease in HDL cholesterol and increase in LDL, increasing atherogenic risk.
- Blood: stimulation of erythropoiesis and growth of hematocrit to levels atypical for women.
- Reproductive function: anovulation, amenorrhea, problems with pregnancy planning.
- Pregnancy: androgens are contraindicated during pregnancy due to the risk of masculinization of a female fetus.
- Psyche: irritability, mood swings, sleep disturbances.
Separately, the editors emphasize the risk associated with pregnancy. A woman who uses androgens and does not control contraception may not immediately notice pregnancy due to an already disturbed cycle. Meanwhile, testosterone penetrates the placenta and is able to influence the formation of the child's genitals.
Do not forget about the risks of injections as such. Propionate is known for pain at the injection site, and when using drugs of illegal origin, the threat of incorrect content, impurities and violation of sterility is added. An abscess after a non-sterile injection is not uncommon in clinical practice.
Medical contexts of testosterone use in women
Testosterone for women has a narrow but recognized medical indication. The International Consensus Position on Testosterone Therapy in Women (Davis et al., 2019) recognizes only one indication as warranted, hypoactive sexual desire disorder in postmenopausal women after careful evaluation. And even then, the goal is to return hormone levels to values typical for premenopausal women.
The 2019 consensus allows carefully adjusted off-label prescribing of an approved male formulation when a suitable female product is unavailable, with concentrations maintained in the physiological female range. It does not recommend preparations that produce supraphysiological levels, including injections and pellets. It also does not support testosterone for general well-being, cognition or body composition.
Regarding sports results, data exists. A randomized, placebo-controlled trial by Hirschberg et al (2020) found that even a modest increase in testosterone in young women increased running endurance to exhaustion and fat-free mass. This explains why androgens are attractive to female athletes—and why they are banned.
Testosterone and all its esters are included in Section S1 "Anabolic Agents" of the WADA Prohibited List and are prohibited both in-competition and out-of-competition. For an athlete, a finding can lead to sanctions, subject to applicable TUE and results-management rules. The use of androgens for muscle definition in fitness sports also does not exempt from health risks.
Editorial conclusions
Testosterone Propionate is not a "female" or "safe" version of testosterone. A short ester only changes the duration of action, but not the nature of the hormone, and high concentrations may even accelerate the onset of androgenic effects.
The most serious problem of virilization is its partial irreversibility. Voice change and clitoromegaly usually persist after withdrawal, while hirsutism and alopecia may only partially regress. No "schemes" guarantee that this will not happen.
If a woman notices signs of excess androgens in herself - regardless of the reason, because it can be polycystic ovary syndrome or a tumor - consultation of a gynecologist-endocrinologist and laboratory examination is required, not self-medication.
We recommend that you also read our materials Testosterone Enanthate and Women: The Risks of Virilization, Testosterone Propionate Myths: What's True and What's Not, and Testosterone Propionate History and Its Medical Uses.
References
- Davis SR, Baber R, Panay N, et al. Global Consensus Position Statement on the Use of Testosterone Therapy for Women. J Clin Endocrinol Metab. 2019;104(10):4660–4666.
- Franke WW, Berendonk B. Hormonal doping and androgenization of athletes: a secret program of the German Democratic Republic government. Clin Chem. 1997;43(7):1262–1279.
- Hirschberg AL, Elings Knutsson J, Helge T, et al. Effects of moderately increased testosterone concentration on physical performance in young women: a double blind, randomised, placebo controlled study. Br J Sports Med. 2020;54(10):599–604.
- Huang G, Basaria S. Do anabolic-androgenic steroids have performance-enhancing effects in female athletes? Mol Cell Endocrinol. 2018;464:56–64.
- Pope HG Jr, Wood RI, Rogol A, et al. Adverse health consequences of performance-enhancing drugs: an Endocrine Society scientific statement. Endocr Rev. 2014;35(3):341–375.
- World Anti-Doping Agency. The World Anti-Doping Code: International Standard. Prohibited List. Montreal: WADA; акÑÑалÑна ÑедакÑÑÑ.
- Nieschlag E, Behre HM, Nieschlag S (eds). Testosterone: Action, Deficiency, Substitution. 4th ed. Cambridge University Press; 2012.
