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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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Biotin For Hair Loss: Why This Supplement Is Overhyped & Oversold
By Perfect Hair Health Team
Jun 1, 2020

Biotin For Hair Loss: Why This Supplement Is Overhyped & Oversold

When it comes to hair loss supplements, biotin is king. Unfortunately, biotin’s popularity resides more so in clever marketing than in sound science. Studies have shown that biotin levels don’t differ between people with and without hair loss. Moreover, in the U.S., biotin deficiencies s...
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...
Saw Palmetto: Is It As Effective As Finasteride?
By Perfect Hair Health Team
Jan 9, 2020

Saw Palmetto: Is It As Effective As Finasteride?

Saw palmetto is less effective than finasteride for treating pattern hair loss – with clinical studies showing lower response rates and regrowth rates in men taking 320mg of saw palmetto versus 1mg of finasteride daily. However, saw palmetto is also associated with fewer sexual side effects. This me...
Saw Palmetto: A Hair Growth Miracle? Mixed Evidence, Mixed Results
By Perfect Hair Health Team
Aug 2, 2019

Saw Palmetto: A Hair Growth Miracle? Mixed Evidence, Mixed Results

Saw palmetto reduces DHT levels and may improve hair loss, with one study citing hair regrowth in 38% of men. However, the extract is not as effective as finasteride. Saw palmetto is also unregulated, so there are no best practices for harvesting, manufacturing, or extraction. Consequently, its DHT-...
The Best Diet For Hair Loss? Here’s What Everyone Gets Wrong
By Perfect Hair Health Team
Jul 17, 2019

The Best Diet For Hair Loss? Here’s What Everyone Gets Wrong

The diet-hair loss connection is complicated. A bad diet is more closely linked to telogen effluvium (a form of hair loss) than it is pattern hair loss (androgenic alopecia). Contrary to popular belief, the best foods and diets to stop hair loss will vary for everyone. Here’s why.
Do Scalp Massages Improve Hair Loss From Androgenic Alopecia? (Our 2019 Study)
By Perfect Hair Health Team
May 14, 2019

Do Scalp Massages Improve Hair Loss From Androgenic Alopecia? (Our 2019 Study)

Scalp massages may improve androgenic alopecia (AGA) – with response rates reaching 75%+ by eight months of effort. Some people also see significant hair regrowth. However, the therapy is time-intensive and requires commitment. Diffuse thinners should confirm they have AGA before trying the massages...
Nutrient Deficiencies And Hair Loss: A Master Breakdown
By Perfect Hair Health Team
Jun 19, 2018

Nutrient Deficiencies And Hair Loss: A Master Breakdown

Research shows that severe, prolonged nutrient deficiencies can cause hair loss… but that deficiencies this severe are rare in the first world. Paradoxically, studies also reveal that first-world hair loss sufferers often have low-grade nutrient deficiencies. So what’s the real story? Th...
Brotzu Lotion For Hair Loss? Maybe, Maybe Not. (See Photos)
By Perfect Hair Health Team
May 24, 2018

Brotzu Lotion For Hair Loss? Maybe, Maybe Not. (See Photos)

In 2016, Brotzu Lotion made headlines as a potential hair loss cure. But does this topical actually live up to its hype? Yes and no. On the positives, Brotzu Lotion (now branded as Trinov™) might stop the progression of pattern hair loss. It can also improve alopecia areata. But is it better than mi...
L. Reuteri For Hair Loss: A Complete Review
By Perfect Hair Health Team
Jul 26, 2017

L. Reuteri For Hair Loss: A Complete Review

Lactobacillus reuteri (l. reuteri) may raise testosterone, improve vitamin D synthesis, and increase hair quality (in rats). Once found in 40% of human guts, this bacteria is now only present in a small fraction of people. So if we supplement with l. reuteri, will we experience hair regrowth? This a...

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.