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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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Oral vs. Topical Dutasteride: What Studies Show
By Michael Williams, PhD
Dec 17, 2025

Oral vs. Topical Dutasteride: What Studies Show

Oral dutasteride is one of the most effective treatments for androgenic alopecia, but its systemic hormone suppression raises safety concerns. Topical dutasteride is often promoted as a way to deliver similar scalp-level benefits with fewer side effects, but does the evidence support that claim? In ...
Minoxidil Shedding – What to Expect & When it Stops
By Ben Fletcher, PhD
Dec 17, 2025

Minoxidil Shedding – What to Expect & When it Stops

Starting minoxidil and seeing more hair fall out? You’re not alone. This article breaks down the phenomenon known as the “dread shed”—a temporary spike in hair loss that can happen when beginning treatment. We explore why this shedding occurs, what it means for your hair cycle, and whether it’s actu...
Peppermint Oil for Hair Growth: Better Than Minoxidil?
By Perfect Hair Health Team
Dec 17, 2025

Peppermint Oil for Hair Growth: Better Than Minoxidil?

In 2014, a study on mice found that peppermint oil improved hair growth outcomes better than minoxidil. In 2015, a study on men with androgenic alopecia showed that topical rosemary oil (similar to peppermint) improved hair counts, and as effectively as minoxidil. While these studies appear promisin...
Caffeine For Hair Loss (AGA): Evidence & Recommendations
By Perfect Hair Health Team
Dec 17, 2025

Caffeine For Hair Loss (AGA): Evidence & Recommendations

Caffeine’s role in hair loss (and hair growth) is hotly debated. On the one hand, oral caffeine may indirectly exacerbate hair loss in those who are hyperglycemic or hypothyroid. On the other hand, topical caffeine does have efficacy as a potential hair loss intervention – at least when combin...
Microneedling For Hair Loss: 5 Strategies to Reduce Pain
By Perfect Hair Health Team
Dec 16, 2025

Microneedling For Hair Loss: 5 Strategies to Reduce Pain

Microneedling is an experimental therapy for androgenic alopecia and other hair loss disorders. One of its downsides is that it is painful to administer. However, there are simple and effective strategies to reduce pain levels while microneedling across the scalp:(1) opting for devices that ensure n...
Saw Palmetto: Is It As Effective As Finasteride?
By Perfect Hair Health Team
Dec 16, 2025

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...
Platelet-Rich Plasma (PRP): Does It Regrow Hair? Maybe, Maybe Not.
By Perfect Hair Health Team
Dec 16, 2025

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 ...
The Misleading Results Of The Pumpkin Seed Oil-Hair Loss Study
By Perfect Hair Health Team
Dec 16, 2025

The Misleading Results Of The Pumpkin Seed Oil-Hair Loss Study

People looking for natural solutions to hair loss often stumble upon pumpkin seed oil. After all, many articles claim that a 2016 study showed this supplement can regrow hair. But these articles are missing a key detail: that 2016 study wasn’t on pumpkin seed oil; it was on an herbal blend. Wh...
Topical Latanoprost For Hair Loss: Results, Doses, & Side Effect Concerns
By Perfect Hair Health Team
Dec 15, 2025

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...
Finasteride For Women: What’s The Perfect Dose?
By Richard Clayton, PhD
Dec 8, 2025

Finasteride For Women: What’s The Perfect Dose?

Oral finasteride is an effective treatment for male pattern hair loss, also known as androgenic alopecia. However, the drug’s benefits to female pattern hair loss are less clear. Some studies show that females taking between 1.0 to 5.0 mg of finasteride daily improve their hair loss, while oth...

Stop guessing which hair loss
treatments actually work

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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.