Hair loss affects approximately 80 million Americans — 50 million men and 30 million women. For many, it significantly impacts self-esteem and quality of life. The good news: effective treatments exist, and getting a prescription online through a licensed dermatologist has never been easier.
1Types of Hair Loss and Their Causes
The most common form is androgenetic alopecia (AGA) — also called male-pattern or female-pattern hair loss. It's driven by genetic sensitivity to dihydrotestosterone (DHT), a derivative of testosterone. In men, this typically causes a receding hairline and crown thinning. In women, it usually presents as diffuse thinning across the crown while the hairline remains intact.
Other common causes include telogen effluvium (stress-related shedding, often following illness, significant weight loss, or major life events), alopecia areata (an autoimmune condition causing patchy loss), and traction alopecia from tight hairstyles. Identifying the type is important because treatments vary significantly.
2Finasteride: The Gold Standard for Male Hair Loss
Finasteride 1mg (Propecia) is the most clinically proven treatment for male androgenetic alopecia. It works by blocking the conversion of testosterone to DHT by approximately 60-70%. In clinical trials, 83% of men taking finasteride maintained their hair compared to 28% of placebo patients. Around 66% experienced regrowth.
Results are gradual — meaningful improvements typically take 6–12 months. Finasteride must be taken continuously; stopping treatment leads to reversal of benefits within 6–12 months. Side effects (sexual dysfunction, including decreased libido) affect about 1–3% of users in clinical trials, though reported rates in observational data vary. These typically resolve when the medication is discontinued.
3Minoxidil: The Topical Option for Men and Women
Minoxidil (Rogaine) is FDA-approved for both male and female hair loss. It works as a vasodilator — improving blood flow to hair follicles and extending the growth phase of the hair cycle. For men, 5% solution or foam is standard. For women, 2% or 5% formulations are used.
Minoxidil is particularly effective for crown thinning and vertex hair loss. About 40% of men experience meaningful regrowth, with the majority seeing maintenance of existing hair. Oral low-dose minoxidil (1–5mg daily) has emerged as an increasingly popular alternative to topical application, with some evidence of superior efficacy.
4Combination Therapy and Emerging Options
Combining finasteride and minoxidil typically produces better results than either alone. Other options include spironolactone (for women with androgenic hair loss), PRP (platelet-rich plasma) injections, and low-level laser therapy. For women, addressing underlying causes such as iron deficiency, thyroid disorders, or PCOS is often more impactful than topical treatments.
Emerging treatments include dutasteride (off-label, blocks more DHT than finasteride), topical finasteride solutions (lower systemic absorption), and JAK inhibitors for alopecia areata (recently FDA-approved). Your online dermatologist will recommend the most appropriate combination for your specific pattern and history.
Hair loss can sometimes indicate underlying health conditions. A licensed dermatologist should evaluate your pattern before treatment. This article is informational only.
