- Steroids don’t cause baldness on their own; they speed up male-pattern hair loss in people genetically prone to it.
- DHT-derived compounds are the worst (Masteron, Winstrol, Primobolan, Proviron), followed by testosterone; nandrolone is milder.
- Finasteride blocks testosterone’s conversion to DHT but does nothing against compounds that are already DHT-based.
- Minoxidil works regardless of the cause, and microneedling may boost it.
Hair loss is one of the most common reasons people stop using steroids, and one of the most permanent side effects if ignored. The good news is that it’s predictable and partly preventable. This guide explains why it happens, which compounds are most likely to cause it, and the treatments available in Canada.
Why steroids cause hair loss
Male-pattern baldness (androgenetic alopecia) happens when DHT binds to androgen receptors in genetically sensitive hair follicles, shrinking them over time. Testosterone is converted to DHT by the enzyme 5-alpha reductase. Raising androgen levels with steroids speeds up a process that was already programmed. If baldness runs in your family, expect steroids to accelerate it; if it doesn’t, you may see little change.
Which compounds are worst
| Compound | Hair loss risk | Why |
|---|---|---|
| Masteron, Winstrol, Primobolan, Proviron | High | DHT-derived; act like DHT directly |
| Trenbolone | High | Very strong androgen |
| Testosterone | Moderate to high | Converted to DHT |
| Anavar | Moderate | DHT-derived but milder |
| Nandrolone (Deca, NPP) | Lower | Converted to a weaker androgen (DHN) |
Treatments available in Canada
Finasteride
Finasteride blocks 5-alpha reductase, lowering DHT made from testosterone by about two thirds. It’s a prescription drug in Canada, usually 1 mg daily for hair loss. It doesn’t help against DHT-derived steroids (they don’t need conversion), and it can make nandrolone more androgenic by blocking its conversion to the weaker DHN.
Side effects to know: sexual side effects (low libido, erectile problems) occur in a minority, and Health Canada has warned about depression and, rarely, suicidal thoughts. Tell your doctor about any mood changes.
Minoxidil
Topical minoxidil (Rogaine and generics) is sold without a prescription in Canada. It prolongs the growth phase of hair and works regardless of what’s causing the loss. Low-dose oral minoxidil is increasingly prescribed off-label by dermatologists. Shedding in the first few weeks is common and usually temporary.
Microneedling
Small studies found that weekly microneedling combined with topical minoxidil grew significantly more hair than minoxidil alone. It’s cheap and low-risk with a clean device, though the evidence base is still modest.
Ketoconazole shampoo
An anti-fungal shampoo with some evidence of a mild anti-androgen effect on the scalp. Useful as an add-on.
Hair transplants
Available at private clinics across Canada for established loss. Results last best when ongoing loss is controlled.
A practical approach
- Look at your family history before choosing compounds; if you’re prone, avoid DHT derivatives.
- Photograph your hairline and crown in the same light every month.
- Start treatment early; it’s easier to keep hair than regrow it.
- See a family doctor or dermatologist for finasteride or oral minoxidil.
Frequently asked questions
Does hair loss from steroids grow back?
Some shedding may recover after stopping, but follicles lost to male-pattern baldness usually don’t regrow without treatment.
Which steroid causes the least hair loss?
Nandrolone is generally considered the least likely, because it converts to a weaker androgen.
Does finasteride stop hair loss from Masteron or Winstrol?
No. Those compounds are already DHT-based, so finasteride can’t block them.
Is finasteride a prescription drug in Canada?
Yes. It’s on Health Canada’s Prescription Drug List.
Is minoxidil available without a prescription in Canada?
Topical minoxidil is; oral minoxidil needs a prescription.
Products mentioned in this guide
This article is general information for adults in Canada, not medical advice. Talk to a doctor or pharmacist before using any prescription drug, anabolic steroid or research compound, and get bloodwork done. If you’re in crisis, call or text 9-8-8 (Suicide Crisis Helpline) any time.
