If you spend any time in a gym or on fitness social media, you will hear the words: steroids, "test", SARMs, peptides, fat burners. This is a plain-language map of what those categories actually are and the honest risks that come with them, so you can understand the conversation without being sold a transformation.
It is deliberately not a how-to. There are no doses, no cycles, no stacks and nothing about where to get any of this, because the point here is to inform you about the risks, not to help anyone use these substances. Nothing below is medical advice or an endorsement.
What we mean by "PEDs", and what counts
A performance-enhancing drug is a substance used to push the body past what training and food alone would do, usually to build muscle, cut fat or train harder. That is different from a normal supplement like creatine or protein powder, and different again from a medicine a doctor prescribes and monitors for a diagnosed condition.
The line that matters is medical supervision. The same molecule can be a legitimate, monitored treatment in one context and a serious risk in another, taken without oversight at amounts far above what the body would ever make on its own. That distinction does most of the work in this whole topic.
The main categories people ask about
Anabolic-androgenic steroids (AAS) are synthetic relatives of testosterone, used to drive muscle growth. They are the original and most studied PEDs, and the ones with the clearest record of harm.
SARMs (selective androgen receptor modulators) are marketed as a "milder", more targeted version of steroids. The reality is regulatory, not marketing: the US FDA says products sold as SARMs are not legal dietary supplements but adulterated, unapproved drugs, and that people taking them have had life-threatening reactions including liver toxicity, with a possible increased risk of heart attack and stroke and unknown long-term effects.
Peptides and growth hormone (GH) are a newer obsession, hyped as "healing" or anti-ageing aids. BPC-157, a peptide all over TikTok and bodybuilding forums, is an unapproved drug that the FDA placed in a category of substances presenting significant safety risks. Nearly all the evidence for it comes from animal studies and a single research group, with open concerns about immune reactions and impurities.
Stimulant "fat burners" are the other big bucket. Clenbuterol, widely misused to lean out, is not approved for human use and is toxic even at low doses, with tremors, rapid heart rate, low blood potassium, seizures and cardiac arrest reported.
Why this matters now
This is not a fringe problem. A meta-analysis of 187 studies put lifetime AAS use at about 3.3% globally, rising to roughly 6.4% among men, around 18% in recreational sportspeople and about 13% in competitive athletes.
The pressure has moved online. In a 2025 study of 1,553 people, heavier exposure to muscularity-focused content, ideal bodies, muscle-building supplements and muscle-building drugs, was independently linked to probable muscle dysmorphia in boys and men, a body-image disorder tied to higher odds of steroid use. The picture is uneven: US teen steroid use has fallen sharply from its early-2000s peak, with past-year use among adolescents below roughly 0.7% in 2023-2024, even as interest among adult men online has been climbing.
The honest health risks
The serious harms are not the ones the memes focus on. They are cardiovascular, hormonal, hepatic and psychological.
For steroids specifically, long-term illicit use is associated with reduced heart function and accelerated coronary artery disease, with later work reporting roughly a three-fold higher risk of heart attack. The hormonal damage is the one people underestimate: stopping steroids can suppress your body's own testosterone production for months to years, causing fatigue, low libido, erectile dysfunction, infertility and depression.
Non-prescribed use of these drugs can cause stroke and serious heart, liver and kidney problems.Singapore Ministry of Health
Do the effects reverse if you stop?
Some do. Others do not, and that is the myth most worth killing. The idea that your body simply "bounces back" once you quit is not what the evidence shows.
A case-control study found that former steroid users had significantly lower testosterone and more hypogonadal symptoms, low libido, erectile dysfunction and depressive symptoms, than non-users years after they stopped. Suppressed natural testosterone and certain heart changes can persist for months to years, or be permanent. The damage tracks with cumulative lifetime exposure, which is why "just a low dose" is not the safe option it sounds like.
The hidden risk in "legal" supplements
You can run into these substances without ever meaning to. Of 776 supplements flagged by the FDA over roughly a decade, muscle-building products were commonly spiked with undeclared anabolic steroids or steroid-like compounds, while weight-loss products were most often spiked with sibutramine, a drug pulled from the US market in 2010 over cardiovascular risk.
The products literally labelled as SARMs are no more honest. A lab analysis of 44 SARM-labelled products found only about half actually contained the SARM claimed, many held different or additional unapproved drugs, and the doses frequently did not match the label. DMAA, a stimulant once sold in pre-workouts and fat burners, was removed from the US supplement market because it can raise blood pressure and heart rate and has been linked to heart attack, stroke and death. "Over-the-counter" does not mean clean, and it does not mean as-labelled.
The legal picture, including Singapore
In Singapore, androgenic steroids and human growth hormone are prescription-only medicines and are not approved for performance enhancement. The Ministry of Health is blunt that non-prescribed use can cause stroke and serious heart, liver and kidney problems.
The penalties are real. Anabolic steroids are controlled under the Poisons Act, carrying up to S$10,000 and/or up to two years' imprisonment. Selling illegal health products can carry up to S$100,000 and/or three years under the Health Products Act, enforced by the Health Sciences Authority.
Myths worth clearing up
- "SARMs and peptides are safer, natural alternatives." Regulators classify both as unapproved drugs, SARMs linked to liver toxicity and possible heart risk, BPC-157 flagged as a significant safety risk with human safety essentially untested.
- "TRT is the same as taking steroids." Medically supervised testosterone replacement restores a normal hormone range under monitoring. PED misuse uses amounts far above natural levels, which is where most of the serious harm comes from.
- "Roid rage is the main danger." The harms that matter most are cardiovascular disease, long-lasting suppression of your own testosterone, liver problems, infertility and depression, not mood swings.
- "Everyone at the gym is on something, so it must be safe." Prevalence is real, but commonness is not safety, and much of what you see online is filtered, sponsored, or simply not telling you the risks.
If you are curious or considering it
The responsible first step is not a forum, a seller or an influencer. It is a qualified clinician who can talk through your actual health, history and goals.
Bottom line
This article is informational coverage, not medical advice, and it deliberately contains no doses, cycles, stacks or sourcing. These substances are prescription-only or controlled and carry real, documented harm. If you are even weighing this up, speak to a doctor or another qualified healthcare professional first and understand the risks before making any decision.
Sources
- Sagoe et al., The global epidemiology of anabolic-androgenic steroid use: a meta-analysis and meta-regression, Annals of Epidemiology (2014)
- FDA, warning on selective androgen receptor modulators (SARMs)
- STAT News / FDA on BPC-157 peptide safety and regulatory status
- Tucker et al., Unapproved Pharmaceutical Ingredients in Dietary Supplements Associated With FDA Warnings, JAMA Network Open (2018)
- Council for Responsible Nutrition, lab analysis of SARM-labelled products (Drug Testing & Analysis)
- Singapore Ministry of Health, health risks from non-prescribed performance-enhancing drug use
- Singapore Health Sciences Authority (HSA), enforcement against illegal health products
- National Capital Poison Center (Poison Control), clenbuterol is unapproved and unsafe
- FDA, DMAA in dietary supplements
- Ganson et al., muscularity-oriented social media content and muscle dysmorphia, Body Image (2025)
- Monitoring the Future, NIDA / University of Michigan (2023-2024)
- Cardiovascular Toxicity of Illicit Anabolic-Androgenic Steroid Use, Circulation (2017)
- Prolonged hypogonadism in males following withdrawal from anabolic-androgenic steroids (2015)
- Former abusers of AAS exhibit decreased testosterone and hypogonadal symptoms years after cessation, PLOS One (2016)
