Articles

All articles.

Photo guides, answers to common questions, and research on hair-loss treatments.

Rosemary Oil vs. Minoxidil for Hair Loss: Evidence Compared

Minoxidil has decades of trials and FDA approval behind it. Rosemary oil rests on one small head-to-head study and laboratory research. This comparison lays out what each side can and cannot support.

Treatment comparison

How Often Should You Take Hair Progress Photos? A Realistic Interval

Monthly photos with quarterly comparisons match the pace of actual hair change. Weekly shots mostly record lighting drift, styling differences, and normal shedding fluctuation.

Tracking guide

How to Tell If Your Hair Loss Treatment Is Actually Working

Trials count success in hairs per square centimeter and blinded photo ratings. Learn what those endpoints mean, what your own photos can honestly show, and when to accept that a treatment is not delivering.

Tracking guide

The Hair Growth Cycle: Anagen, Catagen, and Telogen Explained

Hair grows in a three-phase cycle that stretches over months and years. Understanding anagen, catagen, and telogen explains why progress photos taken at week 6 rarely show anything.

Tracking guide

Do Laser Caps Work for Hair Loss? What LLLT Trials Show

Low-level laser therapy has real but modest trial support for androgenetic alopecia. Here is what device clearances, wavelengths, and study results mean for what a cap can realistically do.

Treatment evidence

Does PRP Work for Hair Loss? What Trials Show and Why Clinics Differ

PRP injections produce measurable density gains in trials, but results vary widely because protocols differ from clinic to clinic. The trials below show both the gains and the gaps.

Treatment evidence

Does Creatine Cause Hair Loss? What the Research Shows

The balding rumor traces back to one small study that never looked at hair. A 2025 trial finally did, and found no effect on follicles over 12 weeks.

Treatment evidence

Do Tight Ponytails and Braids Cause Hair Loss? Traction Alopecia Explained

Yes, sustained tension from tight styles can cause traction alopecia. Early cases often recover once the pulling stops, but long-standing damage can scar the follicles permanently.

Treatment evidence

Does Stress Really Cause Hair Loss, and Will the Hair Grow Back?

Yes, stress can genuinely push hair into a shedding phase, and in most cases the hair does return. Here is how stress shedding works, what it looks like, and the recovery timeline to expect.

Treatment evidence

Does Finasteride Affect Sperm Count or Fertility While Trying to Conceive?

Finasteride can affect semen parameters in some men, but the risk looks different at the 1 mg hair-loss dose versus higher-potency 5α-reductase inhibitors. Here is what controlled semen studies and safety databases show, and what reversibility data exist.

Treatment evidence

Does Minoxidil Work for Women? Comparing 2% and 5% Strengths

Yes, for many women. Topical minoxidil is the only FDA-approved treatment for female pattern hair loss, and both the 2% solution and 5% foam are approved options. The two differ in routine, vehicle, and side-effect tradeoffs.

Treatment comparison

Maturing vs. Receding Hairline: How to Tell the Difference

Most hairline movement in your late teens and twenties is normal maturation, not balding. The two differ in shape, speed, and hair quality. Standardized photos taken months apart settle the question, because maturation stops and recession does not.

Tracking guide

Does Menopause Cause Hair Loss, and Will It Grow Back?

Menopause-related hair thinning is common and hormonally driven. Whether hair returns depends on which type of loss you have, and the answer shapes which treatments are worth pursuing.

Treatment evidence

How Long Does Finasteride Take to Work? Your First Year, Month by Month

Finasteride lowers DHT within days, but visible results take months. Here is what to expect at 3, 6, and 12 months, plus how to judge your own response honestly.

Treatment evidence

Telogen Effluvium or Male Pattern Baldness? How to Tell Them Apart

Sudden diffuse shedding after a trigger points to telogen effluvium. Gradual thinning at the temples and crown points to pattern loss. Shedding pattern, onset, and part-width photos separate the two.

Tracking guide

How Much Hair Loss Per Day Is Normal, and How to Count It

Around 50 to 100 hairs a day is the commonly cited normal range, but your number varies with hair length and wash habits. Here is how to measure your own shedding with the 60-second comb test and wash-day collection.

Tracking guide

How Long Does Minoxidil Take to Work? A Month-by-Month Timeline

The FDA label says results may appear at 2 months, and some men need 4 months or longer. Here is what happens in the follicle during that wait, what trials measured at 6 months, and how to judge your own progress.

Treatment evidence

Hair Density vs. Hair Thickness: How to Tell Which One You're Losing

Density is a count of hairs per area. Thickness is the diameter of each strand. Pattern thinning usually shrinks caliber first, which is exactly what your photos cannot see. Here is how to check both.

Tracking guide

Dutasteride vs. Finasteride for Hair Loss: Which Works Better?

Dutasteride suppresses DHT more completely than finasteride, but head-to-head trials show mixed results. A comparison of efficacy, side effects, and US approval status.

Treatment comparison

Minoxidil Plus Finasteride: Does Combining Them Work Better?

Combination trials show added benefit over minoxidil alone, and the two drugs work through different mechanisms. What the data support, what remains untested, and how to track your results.

Treatment comparison

Can Thyroid Problems Cause Hair Loss? Regrowth After Treatment

Yes, thyroid dysfunction can cause diffuse hair shedding, and hair usually regrows once hormone levels are corrected. Here is why the timeline runs in months, not weeks, and when another cause is likely.

Treatment evidence

Postpartum Hair Loss: When Shedding Stops and Regrowth Begins

Postpartum shedding usually peaks around months three to four and resolves within a year. Here is the full timeline, what regrowth actually looks like, and the signs that warrant a lab check.

Treatment evidence

Does Minoxidil Cause Shedding at the Start? How Long It Usually Lasts

Early shedding on minoxidil is a real, transient effect caused by follicles re-entering the growth phase. Here is the mechanism, the rough timeline, and how to keep your progress photos from convincing you to quit too early.

Treatment evidence

Does Tretinoin Make Minoxidil Work Better for Hair Loss?

One randomized trial found no advantage for the combo, but smaller studies hint tretinoin may rescue minoxidil nonresponders. Here is what the evidence supports.

Treatment comparison

Are Hair Transplant Before-and-After Photos Misleading? How to Audit Them

Clinic galleries control angle, lighting, wetness, and styling, and each one changes how dense the same head of hair looks. Audit any comparison photo for these variables before you believe it.

Tracking guide

What Happens If You Stop Minoxidil? Does the Hair Fall Out?

Stopping minoxidil usually means losing the hair it grew, over months rather than overnight. This page covers the mechanism, the realistic timeline, and how to read your own photos after quitting.

Treatment evidence

How to take consistent hair progress photos

Keep the lighting, angle, distance, and hair state the same each time.

Tracking guide

Finasteride vs. minoxidil

How oral finasteride, topical minoxidil, and oral minoxidil differ in approved use, study results, and side effects.

Treatment comparison

Why two hair photos can disagree when your hair hasn’t changed

Perspective, brightness, crop and hair state can make the same scalp look surprisingly different.

Tracking guide