Hair Loss Conditions
Educational guides to common hair loss conditions, causes, symptoms, diagnosis conversations, treatment options, and when to seek medical care.
How to Use This Topic Hub
Start with the articles that match your current question, then compare the advice against your Norwood stage, donor area, budget, medical history, and treatment goals. For surgery-related decisions, use these guides to prepare consultation questions rather than as a substitute for an in-person medical evaluation.
Does finasteride lower testosterone? What the evidence actually shows
Finasteride doesn't lower testosterone, it raises it slightly by blocking conversion to DHT. Here's what the studies show about your hormones on finasteride.
Does finasteride regrow hair? What the evidence actually shows
Finasteride regrows hair in roughly 66% of men after 2 years. Here's what the trials show, what takes longest, and who it doesn't work for.
Does finasteride work for hair loss? What the evidence shows
Finasteride stops hair loss in about 83% of men and regrows hair in 66%. Here's what the trials actually show, how long it takes, and who it helps.
Does a hair transplant hurt? What the pain really feels like
Hair transplants hurt less than most people expect. Local anesthetic handles the procedure itself; the real discomfort comes in days 2-4 after. Full...
Does Head & Shoulders cause hair loss? The real evidence
Head & Shoulders does not cause hair loss. Its active ingredient zinc pyrithione may actually reduce shedding. Here's what the studies actually say.
Does ketoconazole block DHT? What the evidence actually shows
Ketoconazole shampoo reduces scalp DHT activity and showed 83% hair-count improvement in one trial. Here's what it does, what it can't do, and how to use it.
Does licorice root block DHT? What the research actually shows
Licorice root may inhibit 5-alpha reductase in lab studies, but no human trial confirms it stops hair loss. Here's the honest evidence breakdown.
Does losartan cause hair loss? What the evidence actually shows
Losartan is linked to hair loss in roughly 1% of patients per FDA labeling. Here's what the data shows, what to do, and when to worry.
Does metformin cause hair loss? What the evidence actually shows
Metformin rarely causes hair loss directly, but it depletes B12 in up to 30% of users. Here's what the research says and what to do about it.
Does minoxidil block DHT? What it actually does to hair
Minoxidil does not block DHT. It works through a completely different mechanism. Here's what the science says and why that matters for your treatment plan.
Does minoxidil cause weight gain? What the evidence says
Minoxidil and weight gain: fluid retention affects roughly 7% of oral users. Here's what the FDA label says, what topical does differently, and when to worry.
Does minoxidil expire? What the date actually means for your hair
Minoxidil does expire, and using it past the date may mean weaker results. Here's what the expiry means, when to toss it, and how to store it properly.