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research Chitosan in Aesthetic Practice: A Clinical Narrative Review of Skin, Scar, and Scalp Applications

May 2026 in “JPRAS Open”

In this study, chitosan hydrogels and delivery systems showed promise in supporting skin recovery post-laser procedures, enhancing topical treatments for acne and melasma, and improving hair density in scalp applications, but limited study sizes and formulation variability restrict generalizability.

research An Automatic AI‐Based Algorithm That Grades the Scalp Surface Exfoliating Process From Video Imaging. Application to Dandruff Severity and Its Validation on Subjects of Different Ages and Ethnicities

April 2025 in “Journal of Cosmetic Dermatology”

This study evaluated a new AI-linked imaging device for grading dandruff severity, finding high correlation with expert assessments and suggesting its potential application in other skincare areas due to its versatility and ease of use.

research Scalp application of antioxidants improves scalp condition and reduces hair shedding in a 24‐week randomized, double‐blind, placebo‐controlled clinical trial

6 citations , August 2021 in “International Journal of Cosmetic Science”

This study concluded that a regimen containing functional antioxidants and barrier-enhancing agents reduced hair shedding and increased perceived hair fullness in participants with self-perceived hair thinning over 24 weeks.

Scalp Application of the Antioxidant Piroctone Olamine Reduces Hair Shedding in an 8-Week Randomized, Double-Blind, Placebo-Controlled Clinical Study

research Scalp application of the antioxidant piroctone olamine reduces hair shedding in an 8‐week randomized, double‐blind, placebo‐controlled clinical study

1 citations , August 2021 in “International journal of cosmetic science (Print)”

This study reported that using piroctone olamine in either a shampoo or leave-on product form significantly increased hair retention and improved scalp condition in women with perceived hair thinning.

Faster Calculation of Scalp Area in Androgenetic Alopecia Before Platelet-Rich Plasma Therapy Using the Mobile Application ImageMeter

research Faster calculation of scalp area in androgenetic alopecia before platelet-rich plasma therapy using the mobile application ImageMeter

1 citations , May 2019 in “Journal of The American Academy of Dermatology”

This article discusses using the ImageMeter mobile app to calculate scalp area for PRP treatment in androgenetic alopecia, reporting no new clinical results.

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Community Join

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community Minoxidil Foam Application advice

in Minoxidil 6 upvotes 4 months ago

People discuss different methods for applying minoxidil foam to the scalp, with some using their hands, caps, or brushes for better coverage. Concerns about finasteride causing hair shedding are addressed, clarifying that healthy hair should not fall out.

community How long is topical Fin “active” on the scalp?

in Finasteride/Dutasteride 6 upvotes 2 years ago

Topical finasteride remains active on the scalp for a certain period after application, and there is concern about the safety of touching the hair and transferring the medication to the fingers.

community Anybody have any remedies for an irritated scalp with treatment?

1 upvotes 9 months ago

The user is experiencing scalp irritation after increasing their finasteride and minoxidil dosage with tretinoin and is considering reducing application frequency. They seek advice on managing the irritation.

community I think microneedling before topical application of finasteride (or dut) is a path we should investigate (for those of us who don't care about systemic absorption). Here's why...

20 upvotes 1 year ago

Microneedling before applying topical finasteride or dutasteride may enhance their effectiveness by increasing local absorption in the scalp, despite concerns about systemic absorption. Users discuss combining this method with oral treatments and minoxidil, noting potential benefits and side effects.

community How long does topical fin reduce scalp DHT?

in Finasteride/Dutasteride 8 upvotes 1 year ago

Topical finasteride reduces scalp DHT effectively, with a suggested application of 1.5ml of 0.03% daily. It binds to scalp enzymes, potentially requiring daily or every other day application for sustained results.

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Learn

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learn Scalp Micropigmentation

What should I do before my scalp micropigmentation appointment? Most providers ask clients to skip alcohol and caffeine, and to avoid over-the-counter blood thinners, for 24-48 hours. Never stop a prescribed blood thinner without your doctor's approval.
What should I avoid after scalp micropigmentation? Avoid sun exposure, swimming, sweating, and hair products after scalp micropigmentation.
Does scalp micropigmentation hurt? Scalp micropigmentation typically causes minimal discomfort, often described as light scratching.
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learn Hair Transplant

What areas can be treated with a hair transplant? Hair transplants can treat the scalp, eyebrows, beards, mustaches, and facial hair.

learn Platelet-Rich Plasma

growth factors taken from your blood and injected into your scalp to stimulate hair

learn Castor oil

a traditional, natural remedy touted for promoting scalp health and hair growth

learn HMI-115

much-hyped research compound targeting prolactin receptor in scalp

learn Bimatoprost

a synthetic prostamide used to treat eyelashes also shows promise for stimulating hair growth on scalp

learn Clascoterone

a novel topical treatment that inhibits DHT on androgen receptors

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Clinics

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Experts

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24
Trichologist
Kirsten J. Scalp
Greenville, SC, United States

Kirsten J. Scalp