Articles: Case Studies, Treatments, Breakthroughs

By Perfect Hair Health Team

Feb 12, 2026

Topical Finasteride Before and After: Real Case Studies

Recent studies show that topical finasteride can significantly improve hair density and slow shedding while reducing the risk of systemic side effects seen with oral use. Learn how to interpret before-and-after results realistically, understand what typical regrowth looks like, and optimize your tre...

By Perfect Hair Health Team

Feb 8, 2026

How to Reduce the Risk of Finasteride Side Effects

Finasteride is an FDA-approved drug for androgenic alopecia. For a portion of men using finasteride, side effects can occur – most often in the form of sexual side effects, enlarged male breasts, lowered sperm counts, and erectile dysfunction. Fortunately, there are several strategies that can be em...

By Cassie Hopton, PhD

Feb 3, 2026

10 Best DHT-Blocking Shampoos

DHT-blocking shampoos are widely available, but do they actually work? While blocking DHT is a proven strategy for treating androgenic alopecia, most evidence comes from oral medications and leave-on topicals, not rinse-off shampoos. In this article, we separate science from marketing by breaking do...

By Sophie Grice, PhD

Jan 27, 2026

Switching From Finasteride to Dutasteride

Switching from finasteride to dutasteride is often framed as a simple upgrade or downgrade. In reality, each switch changes not only DHT suppression but also exposure patterns, timelines for results, washout dynamics, and evidence quality. This article breaks down realistic switching scenarios, oral...

By Perfect Hair Health Team

Jan 17, 2026

Oral Minoxidil: Before and After Photos [2026]

Oral minoxidil is emerging as a popular off-label treatment for hair loss, offering an option for those who can’t use or don’t respond to topical formulas. While some achieve dramatic regrowth, most see more modest improvements. Discover why results vary, how to interpret before-and-after photos rea...

By Perfect Hair Health Team

Jan 16, 2026

Oral Finasteride Before and After: Real Case Studies

Oral finasteride remains the gold-standard treatment for male pattern hair loss, with decades of data showing consistent improvement in density and prevention of further thinning. However, dramatic online regrowth photos can lead to unrealistic expectations. In your regrowth journey, it’s important ...

By Catherine Kennedy, PhD

Jan 12, 2026

Does Finasteride Lower Testosterone?

Finasteride’s reputation for affecting hormones has led many to assume it suppresses testosterone, but the biology is far more nuanced. In this article, we unpack what happens to testosterone when DHT is inhibited, why levels often rise instead of fall, and how this squares with the sexual side effe...

By Cassie Hopton, PhD

Jan 12, 2026

Saw Palmetto Shampoo: Is It Effective for Hair Loss?

Saw palmetto is hailed as a natural hair loss treatment, promising hair growth and strength. It is incorporated into all manner of hair loss products, including shampoos. But is the hype backed by science? This article dissects the science of saw palmetto as a hair growth ingredient, as well as sham...

By Dr. Michael Williams

Jan 12, 2026

Switching From Topical Minoxidil To Oral Minoxidil

Thinking about switching from topical to oral minoxidil, or back again? Changing your approach to hair loss can significantly improve your results, but changing treatment can also be a gamble that sets back progress. We break down what the evidence actually shows, when you might want to consider swi...

By Cassie Hopton, PhD

Jan 12, 2026

Does Spironolactone Cause Weight Gain?

Spironolactone is a popular off-label treatment for female pattern hair loss, but many users worry about gaining weight while taking it. This article breaks down how the medication works, what the research actually shows about weight changes, typical dosing for hair growth, and simple strategies to ...