Hair loss myths are everywhere, and they can do real harm. When men believe a receding hairline can't be treated, or that thinning hair only comes from their mother's side of the family, it can lead them to delay or ignore treatment during the period of time where it would be the most effective.
Here's seven of the most persistent hair loss myths debunked, with the clinical evidence behind each one, so you can get the true facts about hair loss and what you can realistically do to help prevent it.
Myth 1: Hair Loss Only Comes From Your Mother's Side
This is probably the most widespread hair loss myth out there. The idea that male pattern baldness is inherited exclusively through the maternal line has been repeated so often that many men dismiss their risk because their father has a full head of hair.
In reality, androgenetic alopecia is polygenic, meaning it's influenced by multiple genes inherited from both parents.1 While the androgen receptor gene on the X chromosome (which men inherit from their mother) does play a significant role, large studies have identified over 60 genetic markers associated with male pattern baldness, spread across multiple chromosomes, including several inherited from the father.2 If either parent has experienced significant hair loss, the risk is meaningfully higher than average.
Myth 2: Wearing Hats Causes Hair Loss
This myth seems to come from the idea that hats reduce blood flow to the scalp or "suffocate" hair follicles. Neither of these things happens in practice.
Hair follicles receive their blood supply from vessels deep beneath the skin surface, and a hat sits nowhere near the depth at which circulation to follicles occurs. There's no clinical evidence linking hat-wearing to androgenetic alopecia or any other form of hair loss.3
Traction alopecia, a genuine form of hair loss caused by prolonged physical tension on the hair shaft, is associated with very tight hairstyles such as high ponytails or braids worn under significant tension. A normally fitted hat doesn't generate that kind of sustained mechanical stress.
Myth 3: A Receding Hairline Can't Be Treated
A receding hairline is one of the earliest and most recognisable signs of male pattern baldness, and many men assume that once it starts, there's nothing that can be done to prevent future hair loss. That's not true, and believing this myth is particularly costly because treating hair loss as early as possible produces the best outcomes.
Finasteride 1mg reduces levels of dihydrotestosterone (DHT), the androgen that drives follicle miniaturisation (getting smaller) in men with a genetic predisposition to hair loss. Taken daily, it slows or stops progression in the majority of men who use it, and in clinical trials, around 66% of men saw some regrowth after two years of treatment.4
Minoxidil, applied topically to the scalp, works through a different mechanism by improving blood flow to follicles and prolonging the growth phase of the hair cycle. Used together, finasteride and minoxidil are more effective than either treatment alone, and both are appropriate for men who are already experiencing a receding hairline or diffuse thinning across the crown.3
The earlier receding hairline treatment begins, the more follicular activity there is to preserve. Waiting until hair loss becomes severe significantly limits what treatment can achieve as the follicles may have already shrunk too much.
Myth 4: Shampooing Too Often Makes Hair Fall Out
Seeing hair in the shower drain is alarming and it's understandable why some men could make the link between washing their hair and hair loss. But shampooing doesn't cause hair loss, and washing less frequently won't slow it down.
The average person sheds between 50 and 100 hairs per day as part of the normal hair growth cycle.3 Many of these hairs, already detached from the follicle and in the telogen (resting) phase, are simply dislodged by washing or combing. If you shampoo less often, those hairs accumulate and then shed all at once, making it look like more hair is falling out when you do wash. The total amount lost is the same either way.
What actually matters for thinning hair in men is whether follicle miniaturisation is occurring, which is driven by DHT sensitivity rather than washing habits. Keeping the scalp clean and healthy is a good thing - it doesn't accelerate hair loss.
Myth 5: Hair Loss Only Happens to Older Men
Male pattern baldness can begin in a man's twenties or even earlier in some cases, and is more common than many men realise. Around 25% of men with androgenetic alopecia begin losing hair before the age of 21.1
Younger men are often reluctant to acknowledge the signs, partly because the expectation is that hair loss is something that happens later in life. This delay matters clinically. Treatment is most effective when follicles are still active, which is typically earlier in the hair loss process. Diffuse thinning across the crown or a slowly rising hairline in a man in his twenties isn't something to wait out - it's the optimal time to seek advice and consider treatment.
Myth 6: Natural Remedies Work Just as Well as Medication
Searches for how to stop hair loss and regrow hair naturally are enormous in volume, and there are many claims made by products that aren't backed up by solid clinical evidence.
A few natural approaches do have some research behind them. A 2015 randomised trial found that rosemary oil applied topically produced comparable results to 2% minoxidil (a lower concentration than the 5% typically used in clinical practice) after six months in a group of 100 men, though neither group showed dramatic regrowth.5 Nutritional deficiencies, particularly low iron or vitamin D, can contribute to diffuse hair loss, and correcting them may help. But these are specific and limited findings, not a general endorsement of natural remedies as an alternative to licensed medical treatment.
Finasteride and minoxidil are the only treatments with a substantial body of randomised controlled trial data and regulatory approval in the UK for androgenetic alopecia. For men experiencing significant androgenetic alopecia, the clinical evidence for finasteride and minoxidil is substantially more robust than for any natural alternative currently available. Supplements and topical products may complement treatment but aren't an effective replacement for it.
Myth 7: Once Hair Is Gone, It's Gone for Good
There is some partial truth to this myth. But understanding what is and what isn't true is important for setting realistic expectations.
Follicles that have been miniaturised for a long time, producing only fine, short, unpigmented hairs (vellus hairs) or no visible hair at all, are very difficult to revive. Medications like finasteride and minoxidil work best while follicles are still producing some hair, even if that hair has become thinner than it was.4 Waiting until the scalp is completely smooth across an area significantly limits what non-surgical treatment can achieve.
Hair that has been shed during a temporary, non-scarring form of hair loss (such as telogen effluvium triggered by illness, stress, or nutritional deficiency) typically does grow back once the underlying cause is resolved. For male pattern baldness that's still in progress, treatment can slow or halt further loss and, in many men, restore some density in areas of diffuse thinning. The earlier treatment starts, the more hair there is to protect.
Frequently Asked Questions
What are the first signs of hair loss in men?
The earliest signs of male pattern hair loss typically include a gradually rising hairline at the temples, a widening parting, or diffuse thinning at the crown. Many men also notice more hair than usual on their pillow, in the shower drain, or on their hairbrush. If you're spotting these signs in your twenties or thirties, it's worth speaking to a clinician sooner rather than later, as early treatment produces the best results.
Is hair loss permanent?
It depends on the cause. Male pattern baldness, driven by DHT and genetic predisposition, causes progressive follicle miniaturisation that becomes harder to reverse over time. However, hair loss caused by temporary factors (stress, illness, nutritional deficiency) usually resolves once the underlying cause is addressed. For androgenetic alopecia, licensed treatments like finasteride and minoxidil can slow or halt progression and produce partial regrowth, but they're most effective when started early.
Can stress cause hair loss?
Yes. Significant physical or psychological stress can trigger telogen effluvium, where a large proportion of follicles shift prematurely into the shedding phase of the hair cycle. The result is diffuse hair loss, typically two to three months after the stressful event. Telogen effluvium is usually temporary and hair tends to grow back once the stress resolves. Stress won't cause androgenetic alopecia on its own, but it can accelerate progression in men who are already genetically predisposed.
Do hair growth products for men actually work?
It depends on the product. Minoxidil has strong clinical evidence behind it. Many natural remedies have limited clinical data behind them, but may produce a beneficial effect for some users. However, many products currently marketed for hair growth have no meaningful clinical evidence at all. If you want a treatment with a proven track record, the evidence sits firmly behind finasteride and minoxidil.
References
- Vary JC Jr. Selected Disorders of Skin Appendages: Acne, Alopecia, Hyperhidrosis. Medical Clinics of North America. 2015;99(6):1195–1211.
- Heilmann-Heimbach S, Herold C, Hochfeld LM, et al. Meta-analysis identifies novel risk loci and yields systematic insights into the biology of male-pattern baldness. Nature Communications. 2017;8:14694.
- NHS. Hair loss. Available at: https://www.nhs.uk/conditions/hair-loss/
- Kaufman KD, Olsen EA, Whiting D, et al. Finasteride in the treatment of men with androgenetic alopecia. Journal of the American Academy of Dermatology. 1998;39(4):578–589.
- Panahi Y, Taghizadeh M, Marzony ET, Sahebkar A. Rosemary oil vs minoxidil 2% for the treatment of androgenetic alopecia: a randomized comparative trial. Skinmed. 2015;13(1):15–21.
This article is intended for informational purposes only and does not replace professional medical advice. Always read the patient information leaflet supplied with your medication and speak to a healthcare professional if you have specific concerns.
Treat Hair Loss With Pharmica
Pharmica is one of the top-rated pharmacies in the UK, having helped over 2 million customers and earned a 4.9 out of 5 rating from more than 237,000 customer reviews. We are committed to delivering the highest standards of service, providing convenient online consultations for a range of clinically proven hair loss treatments with discreet delivery.
In addition, we regularly publish comprehensive health guides featuring information and advice based on the latest medical research via our Health Hub and through our popular email newsletter.