Oral finasteride is the gold standard — one pill, once daily, maximum systemic DHT reduction (~70%). Topical finasteride offers localized treatment with potentially fewer systemic side effects but weaker evidence. For minoxidil, topical (foam or liquid) is the standard, but low-dose oral minoxidil is gaining traction as a convenient, highly effective alternative. Your best format depends on your priorities: convenience, side effect profile, or maximum efficacy.
The Treatment Format Revolution
Five years ago, your options were simple: a pill (finasteride) and a liquid you rubbed on your head (minoxidil). Today, the menu has expanded dramatically. Topical finasteride, oral minoxidil, compound formulations, and custom combinations have created an unprecedented number of ways to treat hair loss. More options is great — but it can also be paralyzing.
This guide cuts through the confusion and helps you understand which format works best for your situation, your priorities, and your lifestyle.
Finasteride: Oral vs. Topical
Oral Finasteride (The Standard)
How it works: Swallow a 1mg tablet daily. It reduces systemic (whole-body) DHT by approximately 70%. This is the most-studied, best-proven hair loss treatment available.
Pros: Strongest evidence base (25+ years of data). Maximum DHT reduction. Easiest compliance — just swallow a pill. Cheapest option ($3-15/month generic).
Cons: Systemic DHT reduction means it affects DHT everywhere, not just the scalp. Small but real risk of systemic side effects (3.8% vs 2.1% placebo).
Topical Finasteride (The Alternative)
How it works: Applied directly to the scalp as a spray or solution. Delivers finasteride locally with reduced systemic absorption.
Pros: Lower systemic DHT reduction (potentially fewer systemic side effects). Good option for men concerned about oral side effects. Can be compounded with minoxidil for a single daily application.
Cons: Less clinical data than oral. More expensive ($30-80/month through compounding pharmacies). Less convenient (daily scalp application vs swallowing a pill). Some systemic absorption still occurs.
Topical finasteride makes the most sense if you experienced side effects on oral finasteride and want to retry with lower systemic exposure, you're side-effect-anxious and want to "start gentle," or you want to combine finasteride and minoxidil into one daily application. If you tolerate oral finasteride fine, there's no medical reason to switch to topical — the pill is cheaper, easier, and better studied.
Minoxidil: Topical vs. Oral
Topical Minoxidil (The Classic)
How it works: Applied directly to the scalp (5% solution for men), typically twice daily. Increases blood flow to follicles and prolongs the growth phase of the hair cycle.
Pros: FDA-approved and extensively studied. Available OTC without a prescription. Very affordable — Kirkland brand on Amazon runs about $25 for a 6-month supply. Minimal systemic side effects.
Cons: Twice-daily application is inconvenient. Can leave hair greasy or flaky (especially liquid). Scalp irritation in some users. Must be applied directly to areas of thinning.
Foam vs. Liquid Topical Minoxidil
| Factor | Liquid (5%) | Foam (5%) |
|---|---|---|
| Drying time | 15-25 minutes | 2-5 minutes |
| Greasiness | More greasy | Less greasy |
| Scalp irritation | Higher (contains propylene glycol) | Lower |
| Ease of application | Dropper — more precise | Finger-spread — easier |
| Cost (6-month) | $20-30 | $30-50 |
| Best for | Targeted application, budget | Daily convenience, sensitive scalps |
Oral Minoxidil (The Rising Star)
How it works: A low dose (typically 2.5-5mg daily) taken as a pill. Originally a blood pressure medication, low-dose oral minoxidil is increasingly prescribed off-label for hair loss.
Pros: No scalp application needed — just a pill. Treats the entire scalp uniformly (great for diffuse thinning). Growing clinical evidence showing strong efficacy. Many users report better results than topical.
Cons: Requires a prescription and medical monitoring. Potential for systemic side effects (increased body hair, mild fluid retention, blood pressure changes). Not FDA-approved for hair loss. Requires baseline cardiac evaluation in some cases.
Low-dose oral minoxidil has become one of the most-prescribed off-label hair loss treatments among dermatologists. Multiple recent studies have shown significant improvements in hair density with good tolerability at low doses. The convenience factor — replacing a messy twice-daily scalp application with a single pill — has driven its popularity. Strut Health offers oral minoxidil prescriptions for men who prefer the pill format.
The Format Decision Matrix
| Your Priority | Best Finasteride Format | Best Minoxidil Format |
|---|---|---|
| Maximum efficacy | Oral 1mg | Oral 2.5-5mg (with monitoring) |
| Minimum side effects | Topical | Topical foam |
| Maximum convenience | Oral 1mg | Oral 2.5mg |
| Lowest cost | Oral generic ($3-15/mo) | Topical liquid generic ($5/mo) |
| Fewest applications | Oral (1 pill/day) | Oral (1 pill/day) |
Find Your Ideal Treatment Format
A licensed provider can help you choose the right combination and format based on your hair loss pattern, lifestyle, and preferences.
Get Your Personalized Plan →Frequently Asked Questions
Yes — the most common combination is oral finasteride + topical minoxidil. Some men use oral finasteride + oral minoxidil for maximum convenience (two pills, no topical application). Discuss your preferred combination with your provider.
Early studies suggest topical finasteride can produce comparable hair growth results to oral, with lower systemic DHT reduction. However, the evidence base is smaller and less mature. Oral finasteride remains the better-studied, more-proven option.
Both are equally effective. Foam dries faster, causes less irritation, and is generally more pleasant to use. Liquid is cheaper and allows more precise application with the dropper. If you've never tried either, start with foam for the better user experience.
At the low doses used for hair loss (2.5-5mg), oral minoxidil is generally well-tolerated. The most common side effect is increased body/facial hair (hypertrichosis). Your provider should check your blood pressure and potentially do baseline cardiac screening before prescribing. It's not appropriate for everyone, which is why it requires a prescription.