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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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Does Minoxidil Cause Skin Aging?
By Ben Fletcher, PhD
May 19, 2025

Does Minoxidil Cause Skin Aging?

Online discussions have raised alarms about a possible link between minoxidil and premature skin aging, especially among users reporting under-eye puffiness, dryness, and fine lines. Could a hair loss treatment really be affecting facial skin quality? This article takes a balanced look at the scienc...
Thermus Thermophilus Extract Does Not Increase Hair Density By 96.88%, Despite Dermatology Times’ Claims.
By Sarah King, PhD
May 12, 2025

Thermus Thermophilus Extract Does Not Increase Hair Density By 96.88%, Despite Dermatology Times’ Claims.

Can Thermus Thermophilus Extract (TTFE) really boost hair density by 96.88%? That’s what a recent Dermatology Times article claimed. But a closer look at the original study tells a very different story. In this article, we unpack the misleading interpretation of TTFE data, why it matters even when i...
Does Retinoic Acid (Tretinoin) Improve Hair Growth From Minoxidil?
By Sarah King, PhD
May 5, 2025

Does Retinoic Acid (Tretinoin) Improve Hair Growth From Minoxidil?

Retinoic acid, a biologically active form of vitamin A, has long been known for its role in skin health, but could it also help with hair loss? In this article, we explore the science behind retinoic acid and its derivative tretinoin, their effects on hair follicle stem cells, and whether clinical s...
Topical Cetirizine: An Anti-Histamine That Regrows Hair? (New Evidence)
By Ben Fletcher, PhD
Apr 29, 2025

Topical Cetirizine: An Anti-Histamine That Regrows Hair? (New Evidence)

Curious if an allergy medication could help with hair loss? Cetirizine, a second-generation antihistamine, is best known for treating allergies, but emerging research suggests it might also promote hair growth when applied topically. From reducing inflammation and mast cell activity to lowering leve...
Scalp Psoriasis: Symptoms, Causes, and Effects on Hair Loss
By Sarah King, PhD
Mar 25, 2025

Scalp Psoriasis: Symptoms, Causes, and Effects on Hair Loss

Scalp psoriasis goes beyond surface-level flaking; it’s a chronic autoimmune condition driven by genetic and immune system factors. From thick plaques and itching to potential hair loss, it can seriously impact daily life. Curious about what causes it, how to tell it apart from similar conditions, a...
Can Methylene Blue Regrow Your Hair? A Look At The Science.
By Sarah King, PhD
Mar 11, 2025

Can Methylene Blue Regrow Your Hair? A Look At The Science.

Methylene blue, a well-known compound with antioxidant and anti-aging properties, has recently gained attention as a potential hair loss treatment. But does the science support the hype? In this article, we examine preclinical research on methylene blue, its mechanisms related to hair health, and wh...
Hair Loss Breakthroughs or Media Hype? Stem Cell Secretome Treatments
By Sarah King, PhD
Mar 4, 2025

Hair Loss Breakthroughs or Media Hype? Stem Cell Secretome Treatments

Stem cell secretome treatments are making headlines as the next big breakthrough in hair regrowth—but do they really work? While the science behind exosomes and growth factors sounds promising, media hype often overshadows the need for rigorous clinical trials. Curious about the real evidence behind...
Seborrheic Dermatitis: Symptoms, Treatments, & Its Impact On Hair Loss
By Sarah King, PhD
Feb 25, 2025

Seborrheic Dermatitis: Symptoms, Treatments, & Its Impact On Hair Loss

Seborrheic dermatitis is a common cause of dandruff, but what’s really happening to your scalp when it flares up? From excess sebum and yeast overgrowth to genetic factors, this condition has multiple triggers. Wondering what treatments work best and how to manage symptoms long-term? Check out our i...
New Study: Does Finasteride Cause Birth Defects?
By Sarah King, PhD
Jan 17, 2025

New Study: Does Finasteride Cause Birth Defects?

A recent study has raised concerns about paternal finasteride use and cryptorchidism (undescended testicles) in offspring, but does the data actually support a causal link? The study, based on FAERS reports, shows a statistical association—but not proof of risk. Issues like reporting bias, lack of a...
Can Intermittent Fasting Cause Hair Loss? A Look Into A New Study
By Sarah King, PhD
Jan 14, 2025

Can Intermittent Fasting Cause Hair Loss? A Look Into A New Study

Intermittent fasting has gained popularity for its potential health benefits, but recent research highlights its possible impact on hair health. Studies on mice and humans suggest that fasting-induced metabolic shifts can slow hair growth and weaken hair shafts by depleting activated hair follicle s...

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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.