Now Offering · Higher-Dose Pathway

2.5mg Oral Dutasteride.
MAXXED Dose.
Max Protection.

2.5mg is the highest dose directly evaluated in the classic Olsen dose-ranging trial — and it's now available at MANE & STEEL, subject to physician review and informed consent.

Start 2.5mg Protocol View The Evidence Guide
Physician-Reviewed · Informed Consent Required · Off-Label In The US
01 — Why 2.5mg

The Highest Dose We've
Directly Studied.

The rationale isn't that every patient needs the highest dose. It's that 2.5mg is the highest dose directly evaluated in the classic Olsen dose-ranging trial — and among the dutasteride doses studied, it produced the greatest scalp DHT suppression and the strongest hair-count response.

For men with aggressive androgenetic alopecia, a substantial treatment history, or a specific interest in greater DHT suppression, those findings can be relevant to a physician-guided conversation. No dose guarantees stabilization or regrowth, and response is individual.

02 — Two Enzymes

One Medication.
Blocks Both. At The Max.

Hair loss is driven by DHT — dihydrotestosterone. Your body produces it using two enzymes: Type I and Type II 5-alpha reductase. Finasteride blocks Type II only, even at its highest studied dose. Dutasteride blocks both — and at 2.5mg, that blockade is as complete as the clinical data gets.

MANE & STEEL Dutasteride softgels

Percent reduction in serum and scalp DHT · Olsen et al., J Am Acad Dermatol, 2006

The Old Ceiling
Finasteride
Blocks Type II only
73%
Serum DHT
41%
Scalp DHT
at 5mg — its highest studied dose
The MAXXED Standard
Dutasteride
Blocks Type I and Type II
96.4%
Serum DHT
79%
Scalp DHT
at 2.5mg — the highest dose directly studied
Important: Olsen did not test 1.0mg, 1.5mg, or 2.0mg dutasteride. We don't assign invented scalp-DHT percentages to intermediate doses — if a number isn't studied, we don't display it as fact.
03 — The Evidence

Three Studies.
One Direction.

Randomized clinical data plus longer-term real-world experience — here's exactly what each study does, and doesn't, tell us about higher-dose dutasteride.

1
Olsen et al. · JAAD · 2006
Dutasteride Wins

Dutasteride 2.5mg vs Finasteride 5mg

The centerpiece of the 2.5mg discussion. In this 24-week randomized dose-ranging trial, 416 men ages 21–45 received placebo, finasteride 5mg, or dutasteride at 0.05, 0.1, 0.5, or 2.5mg daily. Increasing dutasteride exposure produced progressively greater DHT suppression and hair-count improvement — dutasteride 2.5mg outperformed finasteride 5mg at both 12 and 24 weeks.

2
Harcha et al. · JAAD · 2014
Dutasteride Wins

Dose-Response Confirmation

A second large randomized, active- and placebo-controlled study evaluating multiple dutasteride doses. It provides independent confirmation of a dose-dependent improvement in hair-count and hair-width outcomes — but it should not be read as a second long-term 2.5mg study. The direct 2.5mg scalp-DHT argument remains centered on Olsen.

3
Choi et al. · Annals of Dermatology · 2022
Dutasteride Wins

Long-Term Real-World Data

A multicenter South Korean chart review of 600 men, showing strong long-term effectiveness and tolerability. Reassuring for dutasteride as a medication — but the great majority of exposure in this study was at 0.5mg. It supports longer-term dutasteride treatment, not the long-term safety or efficacy of 2.5mg specifically.

04 — Who This Is For

You Get One Shot
At This. Don't Half It.

2.5mg wasn't built for every guy. It was built so guys who fit these three profiles have the option — with full informed consent — to give themselves the strongest possible shot at stopping hair loss and maximizing regrowth.

Guys on TRT
Profile 01
Guys On TRT
If you're on testosterone replacement therapy — especially at higher therapeutic doses — your body is converting more exogenous testosterone into DHT than baseline. 2.5mg dutasteride is the most complete tool available to mitigate that downstream effect.
Early-onset androgenetic alopecia
Profile 02
Early-Onset, Two-Pattern Loss (18–25)
Young men between 18 and 25 experiencing early-onset androgenetic alopecia — specifically with both crown loss and frontal loss — represent the most aggressive presentation. That's exactly the case a physician-guided conversation about the maximum studied dose is meant for.
Leave nothing on the table
Profile 03
Guys Who Won't Leave It On The Table
You live one life. For men who want the highest studied ceiling of DHT suppression — not because they necessarily need it, but because they want to know they gave it everything — 2.5mg is that option, with full informed consent behind it.
05 — Informed Consent

Understand The Evidence
Before You Request It.

If You Request 1.5mg Or 2.5mg

Understand that increasing drug exposure may change both potential benefit and potential risk. Higher-dose dutasteride for androgenetic alopecia is off-label in the United States, and the amount of long-term hair-loss-specific safety data at 2.5mg is more limited than the evidence base for standard 0.5mg dosing.

Informed consent doesn't mean we expect you to experience a side effect. It means you've been given a fair opportunity to understand the medication, the available evidence, known risks, uncertainties, alternatives, and the fact that treatment response varies between individuals. Review your complete medication and medical history with your physician, and ask questions before treatment.

Read Increasing Your Dose › Read Drug Safety Information ›
06 — Full Documentation

Read The Complete
Evidence Guide.

Our full patient evidence guide covers the Olsen, Harcha, and Choi studies in detail, the serum-vs-scalp DHT distinction, why 2.5mg is the right reference point, and exactly what informed consent means before requesting a higher dose.

Reading the MANE & STEEL evidence guide

The Science Behind Higher-Dose Dutasteride

A patient evidence guide to the 0.5mg, 1.5mg, and 2.5mg oral dutasteride pathway

View Guide
2.5mg = 5 Commercial-Grade Softgels Per Day
Same delivery system as every dose we offer — not compounded.

Ready For The
MAXXED Protocol?

Start your 2.5mg dutasteride protocol today, subject to physician review — or take the two-minute quiz to find the right starting point for you.

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