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 minoxidil need to fully dry before bed or touching hair?
Minoxidil needs 2 to 4 hours to dry before bed or contact. Here's exactly why, what happens if you don't wait, and how to work it into your routine.
Does minoxidil stop working after a few years? The tolerance question answered
Minoxidil rarely causes true tolerance. Most 'it stopped working' cases are normal hair loss progression. Here's what the evidence actually says.
Does minoxidil work better on light or dark skin types?
Skin tone doesn't drive minoxidil's effectiveness. Hair loss type, stage, and age matter far more. Here's what the evidence actually says.
Does minoxidil work on temples or only the crown?
Minoxidil is FDA-approved for the vertex/crown, but studies show real regrowth at temples too. Here's what the evidence actually says.
Does PRP work better when combined with microneedling?
PRP plus microneedling outperforms either alone in multiple trials. Here's what the data actually shows, what it costs, and who it's right for.
Does protein deficiency cause hair loss? How much do you need?
Yes, protein deficiency can cause hair loss. Learn how much protein your hair actually needs, the signs to watch for, and when to see a doctor.
Does saw palmetto block DHT as effectively as finasteride?
Saw palmetto blocks DHT, but finasteride is roughly 10x stronger in clinical trials. Here's what the real data says before you spend a cent.
Does scalp sun exposure cause hair loss or help with vitamin D?
Sun on your scalp makes vitamin D but also risks UV damage. Here's what the research actually shows about hair loss, growth, and how much sun is enough.
Does seborrheic dermatitis cause permanent hair loss if untreated?
Seborrheic dermatitis rarely causes permanent hair loss, but chronic, severe inflammation can damage follicles over time. Here's what the evidence actually...
Does selenium deficiency affect hair growth and how to test for it
Selenium deficiency can cause hair loss and texture changes. Learn the blood test threshold, how much is too much, and what the research actually shows.
Does silica supplement help hair thickness? What the evidence shows
Silica supplements may modestly improve hair thickness, but the evidence is thin. Here's what three real trials found and what doctors actually recommend.
Does smoking cause hair loss? What it does to your follicles
Smoking raises androgenetic alopecia risk by up to 2x and shrinks follicle blood supply. Here's what the research actually shows and what to do about it.