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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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Hormonal Birth Control & Hair Loss: A Review Of The Evidence
By Perfect Hair Health Team
Sep 13, 2019

Hormonal Birth Control & Hair Loss: A Review Of The Evidence

Some hormonal birth control may (1) increase temporary hair loss when starting/stopping treatment, and (2) accelerate hair loss in women at-risk of female pattern hair loss. But not all birth control carries the same risk. Read on to educate yourself on which options might be better for your unique ...
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.

Platelet-Rich Plasma (PRP): Does It Regrow Hair? Maybe, Maybe Not.
By Perfect Hair Health Team
Jun 19, 2019

Platelet-Rich Plasma (PRP): Does It Regrow Hair? Maybe, Maybe Not.

PRP can increase hair counts by 25-40% for those with androgenic alopecia. However, it’s expensive and requires ongoing injections to maintain results. It works best as an adjunct treatment, and it might be less effective for women. Before you invest in PRP, make sure to vet your dermatologist with ...
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...
Do Hair Transplants Debunk The Scalp Tension-Hair Loss Hypothesis?
By Perfect Hair Health Team
Jan 9, 2019

Do Hair Transplants Debunk The Scalp Tension-Hair Loss Hypothesis?

In 1959, hair transplant studies led researchers to believe that a balding clock was genetically programmed in each hair follicle, and that our scalp environments had nothing to do with hair loss. Today, these findings are now in question. Here’s why.

The Scalp Tension Theory Of Hair Loss: A Scientific Breakdown
By Perfect Hair Health Team
Jan 9, 2019

The Scalp Tension Theory Of Hair Loss: A Scientific Breakdown

Does a tight scalp cause hair loss? Sixty years ago, researchers abandoned this theory. Now, studies on Botox and hair regrowth are making scientists revisit the scalp tension theory of hair loss. Here’s everything you need to know.

Hair Loss (AGA) and Low Blood Flow: What Everyone Gets Wrong
By Perfect Hair Health Team
Nov 29, 2018

Hair Loss (AGA) and Low Blood Flow: What Everyone Gets Wrong

Balding scalps have 2.6 times less blood flow (and 40% less oxygen) than hairy scalps. However, there’s debate over whether low blood flow is a cause of hair loss… or a consequence of hair follicle miniaturization. This article builds (and then dismantles) both sides of the argument....
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...

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.