fbpx
Membership
Menu
Log-in Membership

Articles

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.

Ingredients
Pharmaceuticals
Natural Remedies
Company Reviews
Which Vitamin Deficiences Can Cause Hair Loss?
By Sarah King, PhD
Dec 11, 2024

Which Vitamin Deficiences Can Cause Hair Loss?

Hair loss is a complex issue influenced by various factors, including vitamin deficiencies. We explored the impact (or lack thereof) of deficiencies in five vitamins – Vitamin D, Biotin, Vitamin B12, Vitamin E, and Vitamin A – on hair health and whether supplementation can aid hair regrowth. While d...
Zinc Supplements For Hair Loss: A Hard Look Into The Science
By Sarah King, PhD
Apr 25, 2024

Zinc Supplements For Hair Loss: A Hard Look Into The Science

Zinc is a popular trace element found in hair growth supplements. Animal studies suggest that zinc is required for healthy hair cycling. Human studies suggest that zinc deficiencies can cause hair loss from telogen effluvium. One study found that zinc sulfate might help with non-descript hair loss i...
Understanding Evidence Quality | How Hair Loss Companies Cheat Clinical Trials
By Perfect Hair Health Team
Sep 6, 2023

Understanding Evidence Quality | How Hair Loss Companies Cheat Clinical Trials

In this guide, we’ll expose how big-brand companies in the hair loss industry cheat their clinical study results – all so they can convince hair loss sufferers to buy products that probably won’t work for them. Due to a broad definition of “hair loss” and “hair growth&#...
Topical Latanoprost For Hair Loss: Results, Doses, & Side Effect Concerns
By Perfect Hair Health Team
Sep 30, 2022

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...
Histamine and Hair Loss – Is There A Use For Antihistamines?
By Perfect Hair Health Team
May 9, 2022

Histamine and Hair Loss – Is There A Use For Antihistamines?

The human body creates histamine from the precursor amino acid histidine. It’s critically important for maintaining normal physiology. It’s the excess of histamine signaling that really becomes problematic. Both androgenic alopecia and alopecia areata cases have shown signs of excessive histam...
Stinging Nettle For Hair Loss: Real vs. Perceived Benefits
By Perfect Hair Health Team
Apr 15, 2022

Stinging Nettle For Hair Loss: Real vs. Perceived Benefits

Stinging nettle is a popular natural remedy for hair loss. Unfortunately, quality studies on stinging nettle (and its effects on hair growth) are scarce. Most marketers selling stingle nettle relying almost exclusively on petri dish studies and mouse models to suggest it may have some hair-promoting...
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...
Nutrafol Review: Half-Truths, Cherrypicked Data, & Misleading Study Results
By Perfect Hair Health Team
May 28, 2020

Nutrafol Review: Half-Truths, Cherrypicked Data, & Misleading Study Results

Nutrafol is a hair loss supplement praised by media, endorsed by doctors, and supported by clinical studies. At first glance, it seems like the perfect option for anyone interesting in fighting hair loss naturally. Unfortunately, during our investigation, we found that (1) Nutrafol’s 2018 clin...
Diffuse Thinning: Causes, Implications, And Steps For Regrowth (See Photos)
By Perfect Hair Health Team
Jan 10, 2020

Diffuse Thinning: Causes, Implications, And Steps For Regrowth (See Photos)

Diffuse thinning is a presentation of hair loss linked to androgenic alopecia, stress, and a variety of chronic conditions. If you’re dealing with diffuse hair loss, this article reveals its common causes, and a step-by-step guide toward identifying which causes are most relevant to you. The g...

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.