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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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Why Am I Shedding After Starting Ketoconazole?
By Sarah King, PhD
Apr 19, 2024

Why Am I Shedding After Starting Ketoconazole?

Some people experience increased hair shedding after using ketoconazole shampoos or topicals. This can be due to several factors: treatment-induced hair shedding, a drug reaction, seasonal hair shedding, changes to other aspects of your hair growth regimen, ketoconazole overuse, scalp drying, & ...
Nourkrin® Review: Can Proteoglycans Actually Reverse Hair Loss?
By Sarah King, PhD
Apr 11, 2024

Nourkrin® Review: Can Proteoglycans Actually Reverse Hair Loss?

Nourkrin® markets its supplements as a “natural approach to hair loss”. The company differentiates itself with Marilex®: a “bioactive proteoglycan formula”. Three human studies suggest Nourkrin® products are effective at regrowing hair. Upon further investigation, each study ...
CB-03-01 (Breezula): Clinical Results, Side Effects, Sourcing Options, & More
By Sarah King, PhD
Apr 11, 2024

CB-03-01 (Breezula): Clinical Results, Side Effects, Sourcing Options, & More

CB-03-01, also known as Breezula™, is a topical synthetic androgen receptor antagonist. Its mechanism of action centers on competing with endogenous androgens like dihydrotestosterone (DHT) for binding to androgen receptors, which makes it a candidate for addressing androgenetic alopecia (AGA). Whil...
EGCG: Does This Polyphenol Regrow Hair? | A Scientific Analysis
By Sarah King, PhD
Apr 11, 2024

EGCG: Does This Polyphenol Regrow Hair? | A Scientific Analysis

Epigallocatechin gallate (EGCG) is a popular ingredient found in hair growth supplements, serums, & topicals. Unfortunately, there’s little clinical data showing it can regrow hair in humans, and at higher doses, it might be toxic. On the one hand, in vitro studies suggest EGCG has 5-alpha...
Am I Supposed to Bleed When Microneedling? A Scientific Analysis
By Perfect Hair Health Team
Apr 11, 2024

Am I Supposed to Bleed When Microneedling? A Scientific Analysis

Microneedling is an experimental hair loss intervention that creates tiny punctures on the scalp skin surface – which improves topical penetration and triggers the body’s natural healing response. During a microneedling session, it’s normal to experience a bit of pinpoint bleeding. Havin...
Microneedling vs PRP: Which Is Better?
By Perfect Hair Health Team
Apr 11, 2024

Microneedling vs PRP: Which Is Better?

Dermatologists often recommend platelet-rich plasma therapy (PRP) as a treatment for hair loss. However, studies suggest that microneedling might also achieve the same results for a fraction of the price.  This article provides a comprehensive comparison of PRP versus microneedling: the clinical evi...
Is Hair Loss Treatment Lifelong? Here’s What The Data Show.
By Sarah King, PhD
Apr 11, 2024

Is Hair Loss Treatment Lifelong? Here’s What The Data Show.

It can be daunting to think of hair loss treatments as a lifelong commitment. And for most cases of androgenic alopecia, this is true. However, starting treatment does not necessarily mean you must commit to a lifetime of treatment. Studies suggest that after stopping a hair loss treatment, hair los...
I Am Experiencing Side Effects From Ketoconazole. What Should I Do?
By Perfect Hair Health Team
Apr 11, 2024

I Am Experiencing Side Effects From Ketoconazole. What Should I Do?

Ketoconazole shampoo, a anti-fungal medication, is widely used to treat dandruff and seborrheic dermatitis. It is also sometimes used as an off-label treatment for androgenic alopecia and telogen effluvium. Some users experience side effects such as scalp itchiness & dryness. But with a bit of t...
Does Ketoconazole Work for Women?
By Sarah King, PhD
Apr 11, 2024

Does Ketoconazole Work for Women?

Several clinical studies support the effectiveness of ketoconazole, an anti-fungal treatment, in treating androgenic alopecia and telogen effluvium. However, the evidence for ketoconazole in women is limited. One study found that daily ketoconazole use can facilitate hair growth in women with patter...
Niostem: Can This Device Stimulate Hair Regrowth? Analyzing Marketing Claims Vs. Reality
By Sarah King, PhD
Apr 4, 2024

Niostem: Can This Device Stimulate Hair Regrowth? Analyzing Marketing Claims Vs. Reality

Niostem claims their device achieves hair regrowth through electrotrichogenesis & produces better results than finasteride or minoxidil – without “nasty side effects”. Our investigation found many of Niostem’s claims to be unsubstantiated. (1) Niostem has not conducted any comp...

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.