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Explore the science behind hair loss and hair growth. Our in-depth articles cover topics ranging from natural remedies to pharmaceuticals to breakthroughs in hair loss science. Want to request an article topic? Contact us.

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Topical Latanoprost For Hair Loss: Results, Doses, & Side Effect Concerns
By Perfect Hair Health Team
Dec 15, 2025

Topical Latanoprost For Hair Loss: Results, Doses, & Side Effect Concerns

For androgenic alopecia, clinical studies suggest that ~0.1 mg daily of topical latanoprost can improve hair counts, with visual improvements occurring in 30-50% of hair loss patients over 6-8 months. Telehealth brands are prescribin doses 10-20 times higher than what was clinically studied, thus po...
Finasteride For Women: What’s The Perfect Dose?
By Richard Clayton, PhD
Dec 8, 2025

Finasteride For Women: What’s The Perfect Dose?

Oral finasteride is an effective treatment for male pattern hair loss, also known as androgenic alopecia. However, the drug’s benefits to female pattern hair loss are less clear. Some studies show that females taking between 1.0 to 5.0 mg of finasteride daily improve their hair loss, while oth...
Topical Finasteride Side Effects: What to Know
By Sarah King, PhD
Dec 4, 2025

Topical Finasteride Side Effects: What to Know

Topical finasteride is marketed as a “safer, localized” alternative to the oral pill, but how true is that? In this article, we break down what the science actually shows about systemic absorption, sexual and mood-related side effects, real-world user reports, and why responses vary so widely. Learn...
Low-Dose Topical Dutasteride: Better Than Oral Finasteride? (New Study & Photos)
By Sarah King, PhD
Dec 3, 2025

Low-Dose Topical Dutasteride: Better Than Oral Finasteride? (New Study & Photos)

A new clinical trial claims that low-dose topical dutasteride outperforms oral finasteride for hair regrowth, a result so surprising that it contradicts nearly everything we’ve seen in 5+ years of real-world member data. In this deep dive, we break down what we previously knew about topical dutaster...
Topical Finasteride: The Best Dosage for Maximizing Regrowth and Minimizing Side Effects
By Perfect Hair Health Team
Nov 29, 2025

Topical Finasteride: The Best Dosage for Maximizing Regrowth and Minimizing Side Effects

Since earning FDA approval in 1997, Finasteride has been one of the most widely used hair loss drugs. To avoid potential sexual side effects, many opt for topical finasteride in hopes of isolating the drug’s DHT-reducing effects on the scalp. However, at certain doses, topical finasteride can enter ...
Blueprint Haircare Stack: Product Review
By Michael Williams, PhD
Nov 27, 2025

Blueprint Haircare Stack: Product Review

Bryan Johnson’s Blueprint Haircare Stack promises hair longevity rooted in science, but how much does that translate into real-world results? In this review, we unpack the ingredients, scrutinize the evidence, compare it to proven alternatives, and ask whether the Haircare Stack offers meaningful be...
Natural vs. Pharmaceutical DHT Blockers: Ranked
By Michael Williams, PhD
Nov 25, 2025

Natural vs. Pharmaceutical DHT Blockers: Ranked

Natural and pharmaceutical DHT blockers both aim to slow or reverse hair loss, but their strength, safety, and side effects vary widely. This article ranks the most common DHT inhibitors from weakest to strongest, comparing how natural compounds, such as pumpkin seed oil and EGCG, stack up against p...
Oral Dutasteride for Hair Loss: Results, Side Effects, Dosing & How It Compares to Finasteride
By Perfect Hair Health Team
Nov 17, 2025

Oral Dutasteride for Hair Loss: Results, Side Effects, Dosing & How It Compares to Finasteride

Dutasteride is one of the most powerful treatments for male pattern hair loss, offering faster and greater regrowth than finasteride with comparable or even lower rates of sexual side effects. This comprehensive guide explains how dutasteride works, how it compares to finasteride in clinical trials,...
Topical & Mesotherapy Dutasteride for Hair Loss: Evidence, Dosing, Safety
By Perfect Hair Health Team
Nov 17, 2025

Topical & Mesotherapy Dutasteride for Hair Loss: Evidence, Dosing, Safety

Dutasteride isn’t just oral anymore; emerging research shows that topical and mesotherapy dutasteride can significantly improve androgenic alopecia while keeping most of the action localized to the scalp. This guide breaks down the science, realistic regrowth expectations, dosing ranges, and how the...
Does Topical Finasteride Work?
By Sarah King, PhD
Nov 13, 2025

Does Topical Finasteride Work?

Topical finasteride is quickly emerging as a compelling alternative to oral finasteride for treating androgenic alopecia, promising similar hair regrowth with significantly fewer systemic side effects. But does topical finasteride work? In this article, we break down how topical finasteride works, h...

Stop guessing which hair loss
treatments actually work

Instead, just read our cheat sheet

You’ll get the facts on nine “natural” and “conventional” hair loss treatments: how they work, how much hair they’ll regrow, their limitations, and what their marketers don’t want you know.