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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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Company Reviews
Vegamour Review – The Truth Behind the Label
By Perfect Hair Health Team
May 6, 2022

Vegamour Review – The Truth Behind the Label

Vegamour’s hair growth serums are hot-selling and beautifully branded products containing hair-friendly ingredients. However, the studies referenced to support their ingredients don’t entirely align with their claims. Some ingredients do have clinical research to back up their use in common forms of...
The 6 Best DHT Blockers For Men
By Perfect Hair Health Team
Apr 6, 2022

The 6 Best DHT Blockers For Men

Which DHT blockers work? Which ones put hair loss sufferers at a greater risk of side effects? What does the actual evidence say versus marketing hype for the latest DHT-reducing supplements, topicals, and drugs? The answers may surprise you. In this article, the Perfect Health Team evaluates 6 DHT ...
Collagen For Hair Loss: Untangling The Truth
By Perfect Hair Health Team
Apr 4, 2022

Collagen For Hair Loss: Untangling The Truth

Disorganized collagen (i.e., fibrosis) is a feature of many hair loss disorders. But does supplementing with collagen improve hair growth? On the one hand, randomized placebo-controlled clinical trials have found that collagen supplements can improve skin quality, and that L-glycine (a major portion...
Does Viviscal® Work? Evidence-Based Findings Reveal the Truth
By Perfect Hair Health Team
Apr 1, 2022

Does Viviscal® Work? Evidence-Based Findings Reveal the Truth

Viviscal™ is a hair loss supplement backed by numerous doctors and 12+ human studies. In this investigative article, we take a close look at Viviscal’s clinical trials, marketing efforts, and product ingredients. We even conducted a series of lab tests. Through these efforts, many issues came to lig...
Topical Finasteride: The Best Dosage for Maximizing Regrowth and Minimizing Side Effects
By Perfect Hair Health Team
Mar 21, 2022

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 ...
The Microbiome and Hair Loss: A Scientific Review [2021]
By Perfect Hair Health Team
Feb 23, 2021

The Microbiome and Hair Loss: A Scientific Review [2021]

Ten years ago, many researchers dismissed the possibility that gut bacteria could influence hair loss and hair growth. Today, they’re changing their tune. Research teams have now demonstrated that changes to our gut microbiome are linked to both stress-related hair loss and alopecia areata. Fa...
Vitamin B1 for Hair Loss: Good or Bad for Hair Loss?
By Perfect Hair Health Team
Nov 4, 2020

Vitamin B1 for Hair Loss: Good or Bad for Hair Loss?

Vitamin B1 – also known as thiamine (or thiamin) – is part of the B-complex of vitamins. In mouse models, severe vitamin B1 deficiencies lead to rapid weight loss, neurological decline, and hair loss. However, thiamine repletion studies (as well as studies on humans) suggest that this hair loss seem...
Calcium’s Role In Hair Loss? It’s Complicated.
By Perfect Hair Health Team
Oct 20, 2020

Calcium’s Role In Hair Loss? It’s Complicated.

Calcium imbalances are linked to hair loss, with caveats. Low calcium and hair loss is seen in women with polycystic ovarian syndrome. High calcium and hair loss is reported in people with hyperparathyroidism. But in both cases, the calcium imbalances are consequences of the underlying conditions, n...
Reishi Mushroom For Hair Loss: The Problem With This DHT Blocker
By Perfect Hair Health Team
Oct 7, 2020

Reishi Mushroom For Hair Loss: The Problem With This DHT Blocker

As a hair loss treatment, reishi mushroom’s popularity seems more rooted in marketing than in scientific evidence. Studies show that reishi mushroom extract may lower DHT levels and suppress prostate growth – two things closely linked to male pattern hair loss. However, these studies were done...
Vitamin B12, Hair Loss, & Methylation: Does This Vitamin Improve Hair Growth?
By Perfect Hair Health Team
Sep 16, 2020

Vitamin B12, Hair Loss, & Methylation: Does This Vitamin Improve Hair Growth?

Does vitamin B12 help regrow hair? Mechanistically, a lot of evidence suggests yes: vitamin B12 is important for DNA synthesis, hemoglobin production, and methylation – all of which play a role in healthy hair growth. Unfortunately, studies also show that people with and without hair loss have simil...

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.