I do want to say that I'm not sure the claim that gym bro steroids are generally not testosterone is true? At least as of 6 years ago. This 2020 survey of 2,385 men found:
The most frequently utilized androgens were testosterone enanthate (n = 1922, 80.62%), testosterone cypionate (n = 1217, 51.05%), metandione (n = 1213, 50.88%), trenbolone (n = 1199, 50.29%), oxandrolone (n = 1110, 46.56%), and nandrolone decanoate (n = 1107, 46.43%
According to this, non-testosterone androgens are common, but testosterone seems to still be very much the dominant drug. And that's a very good sample size, so I am inclined to trust these numbers. I am not a gym-anything, so maybe this is inaccurate now, or maybe it varies a lot depending on your local gymbro community & in some places trenbolone is the most common. But I'm not certain its as cut-and-dry as some people make it out to seem. I've seen this getting brought up a lot, and I worry this fact is getting spread around more because its really rhetorically effective than because its accurate, especially since i think most people on tumblr don't have the experience necessary to actually know if its true or not.
Regardless, there are still plenty of reasons that "gym bros use it!" does not mean DIY T is super easy or accessible for the average person. Most importantly in my opinion: because its not even fucking safe for gym bros (from here):
[S]ubstantial mean proportions of black-market AAS [anabolic androgenic steroids] are counterfeit and of substandard quality. These products pose a considerable individual and public health threat, and the very wide range in proportions of fake black-market AAS puts the user in a situation of unpredictable uncertainty. There is a great need for future prevention and harm-reduction programs to protect users from these substances. [...]
In this systematic review, we were able to include 19 articles within the published literature that provided qualitative and/or quantitative analytical test results of AAS found on the black market from 9 different countries (eight in Europe; one in Latin America), with a cumulative sample size of 5,382 products being analyzed qualitatively and 1,614 being quantitatively tested. We demonstrate that substantial proportions of AAS found on the black market are fake. The overall mean estimate for counterfeit anabolic steroids found on the black market was 36% [...] and an additional 37% [...] were of substandard quality [73% in total counterfeit or substandard]. Although these proportions must be interpreted with caution due to some methodological challenges and high heterogeneity, one must acknowledge the unreliable nature of those substances acquired from the black market. [...]
We demonstrate that fake AAS can be substituted, not contain any substance at all, or be adulterated. But in addition, products that contain the labeled substances can still be over-concentrated or under-concentrated. [...] Substandard and counterfeit products found in our systematic review were most likely produced by manufacturers not in line with good manufacturing practices (GMP’s). Rather, those products are produced in clandestine underground laboratories lacking the necessary knowledge or equipment to produce these compounds in adequate quantity and quality, as also described by other authors. The shift from pharmacies to deregulated underground online sites and clandestine underground laboratories occurred after the United States enacted the Anabolic Steroid Control Act in the 1990s. [...] We demonstrate that visual inspection of the package, label, and internal content to identify preliminary signs of counterfeiting of AAS have shown to be mostly ineffective.
Different anabolic steroids come with compound or class-specific and unspecific adverse events. Fake products can lead to unexpected adverse events in addition to the already well-established side effects of AAS, which can include cardiovascular toxicity, cardiotoxicity and arrhythmia, cardiovascular events (stroke, coagulation), genitourinary and reproductive impairment, sexual dysfunction and testicular atrophy, gynecomastia, central nervous system abnormalities, impaired mental health and behavior including suicide, skeletal-muscular pathologies, metabolic decompensation, impaired liver functions, and even death. [...]
AAS are administered in different ways, including oral, injectables (water or oil-based), transdermal (cream or gel), buccal and sublingual. The most common route of administration is per intramuscular injection and we demonstrate that proportions of counterfeit and substandard substances for injectables compared to oral formulations may be considerably higher. Different forms of formulations and administrations additionally come with specific adverse events. As an example, 17α-alkylation of steroids which is used for oral administration is described to result in increased liver toxicity compared to injectable AAS, because of first-pass metabolism and increased duration time in the liver due to slow metabolization. [...]
Besides the problems with chemical quality, our systematic review provides further evidence of microbiological contamination of those substances. Products from clandestine laboratories do not go through microbiological quality control, which can lead to sterility issues and microbiological contamination of injectables. Graham and colleagues demonstrated contamination with bacterial skin commensals during microbiological analysis of their samples. This is especially concerning when those substances are injected into the muscle as it poses a risk of forming abscesses in the muscle and skin necrosis.
In that first study that found testosterone was the most popular AAS used, they also found that "[o]ver 94% of respondents reported side effects from their use." Of the side effects, 43.44% had hypertension, 27.97% had dyslipidemia ("bad cholesterol"), 12.54% had polycythemia (too many red blood cells), and 9.35% had injection site abscesses. All of those things pose an equal risk to a trans man or nonbinary person. & 61.41% of AAS users said they got their supply from the Internet.
Gym bro T is unregulated and this is not a black market born out of any genuine concern for human well-being! "Just get black market T from gym bros" is like telling someone who can't afford their medications to get them off Alibaba. It seems like the entirety of the idea that gym bro T is safe is that, because its such a popular drug, that means there are trusted resources in the community. Which, I'm sure there are to some degree, but that is true of all illegal drugs. I think it would be kind of crazy to tell someone "heroin is such a popular drug, so it's not hard to find trustworthy sources" and then not mention anything about how to actually verify that your trustworthy source is following all appropriate lab protocols and the dosage is accurate and there's only one substance in their and its the drug you actually wanted to take - nope, just "well the community trusts these!" and that's. it?
And I think it is kind of. evil? To just brush aside all these concerns with some abstract idea that trans guys can seek out these communities, get access to those trusted resources, and that those resources will never contain adulterated or over/under-concentrated testosterone or be mislabeled entirely, and that this is all so likely that its not even worth mentioning the risks of black market T in the first place.
I mean, literally, it doesn't seem there is anywhere on the testosterone page on diyhrt.info that goes into fucking any of this (not to mention that the pages are "transfem guide" and "transmasc guide" when like, how fucking hard is it to say estrogen & testosterone? sure, estrogen-based HRT involves more than just estrogen, but more than just transfems do that kind of HRT and apparently that inaccuracy doesn't matter!).
Frankly I think the fact that so many cis men will risk their health and well-being out of a sense that their bodies are inherently unloveable and ugly if they aren't literally 1950s Superman is itself a form of patriarchal violence. Not to mention how this entire black market is the product of the same War on Drugs logic that has gotten so many drug users hurt and killed by making them reliant on black markets with zero oversight. Soooo many cis men have eating disorders and body dysmorphia and a lot of those men are the ones using black market T and other drugs. My brother who I love has been friends with such men, has struggled with those issues himself, and I really hate how glibly so many people treat it.
No man, trans or cis, should be reliant on dubious and potentially harmful black market testosterone! Even if you can get something marked as testosterone cypionate from your local gym bro, that doesn't mean you or him are safe, and it definitely should not be fucking used as a cudgel to shut down trans people talking about the real legal and medical risks they face DIYing. Testosterone being criminalized has harmed so many people and its always fucked up to downplay that, especially as a result of a petty fucking grudge against transmasculine people talking about their oppression. It is not fearmongering to be honest & accurate with people about the risks they are taking with the drugs they are using. Downplaying the risks of taking black market drugs with questionable origins is NOT trans activism.
& frankly I feel like "medically safe testosterone is easy to get from the black market" is also erasing the real, material harm that the criminalization of testosterone has done to so many people. Acting as if these laws haven't made things more dangerous, that the harms are negligible, only serves to distract us all from the fact that everyone, cis and trans, should be fucking pissed about testosterone criminalization. The government should have never been allowed to criminalize people for doing a drug purely because that drug is not allowed in our precious precious sports competitions. Stop getting mad at trans men for talking about our oppression, and start encouraging trans men to form coalitions with gym bros to demand free, safe testosterone for everyone who wants it, for whatever reason they want it.