Alopecia treatment ranges from topical medications and oral drugs to injections, laser therapy, and hair transplant surgery, depending on the type and severity of hair loss. The first step is identifying whether your hair loss is nonscarring (potentially reversible, with follicles still intact) or scarring (where follicles are permanently destroyed). Most hair loss falls into the nonscarring category, which means regrowth is possible with the right approach.
Why the Type of Hair Loss Matters
Not all hair loss responds to the same treatment. Androgenetic alopecia (pattern baldness in men and women) is driven by hormones and genetics. Alopecia areata is an autoimmune condition where the body attacks its own hair follicles, causing patchy loss. Telogen effluvium is temporary shedding triggered by stress, illness, or hormonal shifts. Traction alopecia results from repeated physical pulling on the hair.
In all of these, the hair follicle itself survives, so regrowth remains possible. Scarring alopecias, like lichen planopilaris or discoid lupus, destroy the follicle entirely. Treatment for scarring types focuses on stopping further loss rather than regrowing what’s gone. A dermatologist can distinguish between these by examining the scalp, sometimes with a biopsy.
Topical Minoxidil
Minoxidil is the most widely used over-the-counter hair loss treatment and one of only three FDA-approved therapies for androgenetic alopecia. It’s applied directly to the scalp, typically once or twice daily. Minoxidil works by increasing blood flow to hair follicles and extending the growth phase of the hair cycle.
Clinical results vary considerably. Across studies, hair regrowth with topical minoxidil ranges from 17% to 70%, depending on the concentration and the individual. A large placebo-controlled trial of 393 men found that 5% minoxidil was significantly more effective than 2% for increasing hair counts, though it also caused more scalp irritation and itching. In women with pattern hair loss who hadn’t responded to previous treatment, a 12-week trial of 5% minoxidil produced clinically significant improvement in 60% of participants. Most people need at least 3 to 4 months of consistent use before seeing any visible change.
Oral Finasteride
Finasteride is a prescription pill approved for men with androgenetic alopecia. It works by blocking the enzyme that converts testosterone into DHT, the hormone responsible for shrinking hair follicles in pattern baldness. It’s taken daily and, like minoxidil, requires ongoing use to maintain results. If you stop taking it, hair loss typically resumes within several months. Finasteride is not approved for women of childbearing age because it can cause birth defects.
Treatments for Women
Women with pattern hair loss have fewer FDA-approved options (minoxidil is the main one), but doctors frequently prescribe spironolactone off-label. This medication blocks the effects of androgens on hair follicles. Typical doses range from 25 mg to 200 mg daily, depending on the individual and whether it’s combined with other treatments.
A meta-analysis of 192 patients found that about 57% of women improved with oral spironolactone. Combined therapy (spironolactone plus another treatment) performed better, with a 66% improvement rate, compared to 43% with spironolactone alone. Hair loss worsened in fewer than 4% of treated patients overall.
JAK Inhibitors for Alopecia Areata
For people with severe alopecia areata, a class of drugs called JAK inhibitors has changed the treatment landscape. Baricitinib is currently the only JAK inhibitor with FDA approval specifically for adults with severe alopecia areata. It works by dampening the immune system’s attack on hair follicles.
In the large phase 3 clinical trials (BRAVE-AA1 and BRAVE-AA2), roughly 35% to 40% of patients taking baricitinib achieved 80% or greater scalp coverage by week 36. That’s a meaningful result for a condition that previously had no approved systemic treatment, though it also means the majority of patients had a partial response or didn’t respond at all. Baricitinib is taken as a daily pill and requires monitoring for side effects related to immune suppression.
Steroid Injections for Patchy Loss
For localized patches of alopecia areata, corticosteroid injections directly into the affected scalp remain a first-line treatment. A doctor uses a fine needle to deliver small amounts of steroid into and around the bald patches, typically every four to six weeks.
Success rates are encouraging for limited disease. Studies have found regrowth in 62% to 97% of treated patches, depending on the specific steroid formulation used. One study of patients with more extensive loss (over 50% of the scalp affected) found that six out of ten responded favorably. An uncontrolled study of monthly injections showed complete regrowth in 63% of patients. The treatment works best when hair loss is patchy rather than widespread.
Platelet-Rich Plasma (PRP)
PRP therapy uses a concentrated portion of your own blood, rich in growth factors, injected into the scalp. A typical protocol involves three monthly sessions, followed by three sessions spaced two months apart, then two to three maintenance sessions per year. It’s used most often for androgenetic alopecia and is not FDA-approved, so it’s considered an elective procedure and usually isn’t covered by insurance. Results vary, and the lack of standardized protocols across clinics makes it harder to predict outcomes.
Low-Level Laser Therapy
Low-level laser therapy (LLLT) is the third FDA-cleared treatment for androgenetic alopecia. These are at-home devices, usually caps or combs, that emit red or near-infrared light onto the scalp. The therapy appears to stimulate follicles to enter and stay in the active growth phase and may also influence the enzyme that converts testosterone to DHT.
The biological mechanism likely involves stimulating energy production inside cells. Research on specific wavelengths found that 830 nm light produced the greatest hair growth stimulation, with 785 nm also showing significant effects. Interestingly, most consumer devices sold in the U.S. use lower wavelengths (635 to 678 nm) rather than the wavelengths that performed best in laboratory studies. LLLT is generally considered a supplementary treatment rather than a standalone solution.
Hair Transplant Surgery
When medications and other treatments aren’t enough, hair transplantation offers a more permanent solution for androgenetic alopecia. The two main techniques are FUT (follicular unit transplantation) and FUE (follicular unit extraction).
In FUT, a surgeon removes a thin strip of tissue from the back of the scalp, then technicians isolate individual follicular units under microscopes. This leaves a single linear scar but generally produces high-quality grafts because the follicles are carefully dissected with their protective tissue intact.
In FUE, individual follicular units are extracted one at a time through tiny circular incisions, leaving small round scars scattered across the donor area rather than one line. The tradeoff is that there’s a higher risk of damaging follicles during extraction, since the surgeon can only see the upper portion and has to estimate the direction of the follicle below the skin surface. If the extraction isn’t deep enough, the graft may not survive. Robotic FUE systems have improved graft quality and consistency compared to manual techniques.
Hair transplants work best for people with stable hair loss and enough healthy donor hair at the back and sides of the scalp. Many patients continue minoxidil or finasteride after surgery to protect their remaining native hair.
How Long Before You See Results
Hair grows slowly, and nearly every treatment requires patience. The hair growth cycle means that even when a treatment is working, visible results take months to appear. Topical minoxidil typically shows measurable improvement around month 3 to 4. Nutritional supplements that support hair growth have shown increases in hair counts by 90 days in clinical studies. Some treatments take even longer: topical ketoconazole, sometimes used as a supplementary treatment, didn’t show significant improvement until month 6 in one study.
For baricitinib in alopecia areata, the major clinical trials measured outcomes at 36 weeks (about 9 months). Hair transplant results take 9 to 12 months to fully mature as transplanted follicles go through an initial shedding phase before growing permanently. The consistent theme across all treatments is that you should expect to commit to at least 3 to 6 months before judging whether something is working, and many treatments require ongoing use to maintain their effects.