Hair loss has more effective treatments available now than at any point in history, ranging from over-the-counter topicals to prescription medications to in-office procedures. The right approach depends on the type of hair loss you’re dealing with, how far it’s progressed, and whether you’re male or female. Most people benefit from combining two or more treatments rather than relying on a single one.
Topical Minoxidil: The Starting Point
Minoxidil (the active ingredient in Rogaine) is the most widely used first-line treatment and is available without a prescription. It works by shortening the resting phase of the hair cycle, pushing dormant follicles into the active growth phase sooner than they would on their own. It also extends that growth phase, which is why hairs gradually become longer and thicker over time.
It comes in 2% and 5% liquid or foam formulations. The 5% version is more effective but also more likely to cause scalp irritation or unwanted facial hair growth, particularly in women. You apply it directly to the thinning area once or twice daily, depending on the formulation. Consistency matters more than anything: skipping applications regularly will stall your progress, and stopping entirely reverses the gains within a few months.
One thing that catches people off guard is the “dread shed.” In the first few weeks of treatment, you may notice increased hair fall. This happens because minoxidil forces resting hairs out to make room for new growth. The shedding typically lasts a few weeks to a couple of months and then stops on its own. It’s actually a sign the treatment is working.
Oral Medications for Pattern Hair Loss
For men, the prescription pill finasteride blocks the enzyme that converts testosterone into DHT, the hormone responsible for shrinking hair follicles in androgenetic alopecia. It’s one of the most effective single treatments available.
For women, finasteride is sometimes prescribed off-label at higher doses. A meta-analysis found an overall response rate of 81% in women taking finasteride, with better results at higher doses. However, it cannot be used during pregnancy due to the risk of birth defects, and side effects can include headache, dizziness, and menstrual irregularity.
Low-dose oral minoxidil has become increasingly popular as an alternative to the topical version. Doses typically range from 0.25 to 2 mg daily, far below the doses used to treat high blood pressure (its original purpose). In a study of 148 women, the most common doses were 0.5 mg and 1 mg daily. The oral form avoids the scalp irritation and greasy residue that bother many topical users, though it can cause body hair growth and, rarely, fluid retention.
Spironolactone for Women
Spironolactone is an anti-androgen medication commonly prescribed to women with pattern hair loss. It blocks the effects of male hormones on hair follicles. Typical doses range from 25 mg to 200 mg daily, with 100 mg being the most common starting point. About 74 to 80% of women taking it report improvement or at least stabilization of their hair loss. Side effects can include dizziness (around 16% of patients), menstrual spotting, and breast tenderness. Because it can raise potassium levels, periodic blood tests are part of the monitoring process. Like finasteride, it’s not safe during pregnancy.
Treatments for Autoimmune Hair Loss
Alopecia areata, where the immune system attacks hair follicles and causes patchy or total hair loss, requires a completely different treatment approach than pattern hair loss. A new class of medications called JAK inhibitors has transformed outcomes for people with severe cases. Three are now FDA-approved: baricitinib (approved in 2022), ritlecitinib (approved in 2023 for patients 12 and older), and deuruxolitinib (approved in 2024).
The results from clinical trials are significant. In the pivotal trials, 35 to 41% of patients achieved at least 80% scalp hair coverage within 24 to 36 weeks. With ritlecitinib, that number climbed to 61% after two years of continued treatment. These medications work by calming the specific immune signals that drive the attack on hair follicles.
In-Office Procedures
Platelet-Rich Plasma (PRP)
PRP involves drawing your blood, spinning it to concentrate the platelets and growth factors, then injecting that concentrate into the scalp. The idea is that these growth factors stimulate dormant follicles. A common protocol starts with monthly sessions for the first three months, then maintenance sessions every three to six months. It’s often used alongside other treatments rather than on its own, and results vary considerably between individuals. PRP is not covered by insurance, and sessions typically cost several hundred dollars each.
Microneedling
Microneedling the scalp creates tiny punctures that trigger a wound-healing response, boosting blood flow and growth factor release while also improving absorption of topical treatments like minoxidil. A study comparing two needle depths found that 0.6 mm produced significantly better hair count and thickness than minoxidil alone, and actually outperformed the deeper 1.2 mm depth. This is good news for at-home users, since shallower needling is less painful and carries less risk of scarring. Sessions are typically done once every one to two weeks.
Hair Transplant Surgery
Hair transplantation moves follicles from areas of dense growth (usually the back and sides of the head) to thinning areas. The two main techniques are FUE (follicular unit extraction), which removes individual follicle groups, and FUT (follicular unit transplantation), which takes a strip of scalp tissue. Graft survival rates for scalp-sourced hair sit around 89% at one year. Beard hair, sometimes used when scalp donor supply is limited, actually survives at an even higher rate of about 95%.
Transplanted hairs go through a shedding phase in the first two months, a process called anagen effluvium that affects roughly 40% of transplanted scalp hairs. This is normal. New growth emerges over the following months, with final results evaluated at one year. A transplant doesn’t stop the underlying hair loss process, so most patients continue medication afterward to protect their remaining native hair.
Nutritional Gaps That Worsen Hair Loss
Low iron is one of the most common and correctable contributors to hair thinning, especially in women. Research has identified a ferritin level of 70 ng/mL as the threshold for optimal hair growth, which is well above the standard lab “normal” cutoff of around 12 to 15 ng/mL. Many women with ferritin in the 20s or 30s have technically “normal” labs but are still losing hair because of it. If your ferritin is low, iron supplementation can make a noticeable difference, though it takes months to rebuild stores.
Vitamin B12 levels between 300 and 1,000 ng/L are associated with optimal hair follicle cycling. Deficiency is more common in vegetarians, vegans, and people with digestive conditions that affect absorption. Vitamin D, zinc, and biotin deficiencies have also been linked to hair shedding, though biotin deficiency is actually quite rare in people eating a normal diet.
Supportive Treatments Worth Adding
Ketoconazole shampoo (sold as Nizoral) does more than fight dandruff. It blocks the same enzyme that finasteride targets, reducing DHT production at the scalp. A study comparing 2% ketoconazole shampoo to 2% minoxidil found that both improved hair density, follicle size, and the proportion of actively growing hairs to a similar degree. Using it two to three times per week as a complement to other treatments adds an extra layer of DHT suppression without systemic side effects.
Low-level laser therapy (LLLT) devices, sold as helmets or caps, use red and near-infrared light at wavelengths between 630 and 970 nanometers to stimulate energy production in hair follicle cells. This extends the growth phase of the hair cycle through some of the same pathways that minoxidil activates. The devices are FDA-cleared and used at home for about 20 to 30 minutes per session, several times a week. Results are modest compared to medications, but LLLT works well as an add-on therapy with essentially no side effects.
Realistic Timelines for Results
Hair grows slowly, and every treatment requires patience. Most topical and oral treatments take three to six months before you see visible improvement, with peak results closer to 12 months. The early shedding phase can make things look worse before they look better. In telogen effluvium, a temporary form of hair loss triggered by stress, illness, or hormonal changes, the excessive shedding typically starts about three months after the trigger and lasts another three months before resolving on its own.
Combining treatments generally produces better outcomes than any single therapy. A common evidence-based stack for androgenetic alopecia includes a DHT blocker (finasteride or spironolactone), minoxidil (topical or oral), ketoconazole shampoo, and either microneedling or LLLT. Starting earlier, when follicles are miniaturized but not yet gone, gives you the best chance of meaningful regrowth. Once a follicle has been dormant for years and scarred over, no medication can revive it, and transplantation becomes the only option for coverage in that area.