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research Effects of a Red Clover-Chamomile Complex Extract Ampoule on Hairline Hair Density, Hair Shaft Thickness, and Product Usability

February 2026 in “Journal of the Korean Society of Cosmetology”

This study found that applying a red clover-chamomile complex extract ampoule for 4 weeks significantly improved hair density and shaft thickness at the hairline in participants with self-perceived decreased density.

A 2% Oleosome-FGF-2 Fusion Extract Scalp Serum Improves Hair Density, Anagen/Telogen Ratio, Hair Shaft Thickness, and Scalp Barrier in Women with Shedding-Prone Hair: A Randomized, Single-Blind, Placebo-Controlled Pilot Study

research A 2% Oleosome-FGF-2 Fusion Extract Scalp Serum Improves Photo-trichogramDerived Hair Density, Anagen/Telogen Ratio, Hair Shaft Thickness, and Scalp Barrier Parameters in Women with Shedding-Prone Hair: A Randomized, SingleBlind, Placebo-Controlled Pilot Study

July 2026 in “International Journal of Clinical & Experimental Dermatology”

This exploratory pilot study reported that using a 2% Oleosome-FGF-2 fusion extract scalp serum twice daily for 84 days in women with telogen effluvium and brittle hair improved hair density, anagen/telogen ratio, hair shaft thickness, and scalp hydration compared to a placebo.

research A Comparative Cross-Sectional Study of Hair Density and Hair Shaft Diameter of Different Severities of Anterior Scalp Marginal Traction Alopecia in Women

December 2024 in “Skin Appendage Disorders”

Traction alopecia reduces hair density and thickness; proper hair care can help prevent it.

research Phenotypic, transcriptomic, and genomic analyses reveal the spatiotemporal patterns and associated genes of coarse hair density in goats

3 citations , January 2025 in “动物学研究”

This study used high-resolution imaging and genetic analysis to investigate hair density in the Dazu black goat, identifying key genes like GJA1 and GPRC5D involved in follicle development and maintenance, and highlighted their role in animal hair density regulation.

What Women Want: Quantifying the Perception of Hair Amount - An Analysis of Hair Diameter and Density Changes with Age in Caucasian Women

research What women want - quantifying the perception of hair amount: an analysis of hair diameter and density changes with age in caucasian women

61 citations , April 2012 in “British Journal of Dermatology”

This study analyzed changes in hair diameter and density with age in Caucasian women, highlighting variations in perception of hair amount over time.

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Community Join

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community Hair Shaft Diameter and Density Comparison

13 upvotes 3 weeks ago

The conversation discusses differences in hair shaft diameter and density between thinning and denser areas on the scalp. Treatments mentioned include Minoxidil, finasteride, and dutasteride.

community can we talk about the effect of DHT on hair TEXTURE (not just thickness/density)

41 upvotes 1 month ago

Finasteride treatment improved hair texture and reduced frizz for some users, though full restoration of original texture may take time. Hair texture changes were noted across the head, with some areas responding faster to treatment.

community Cbum's hair transplant looks absolutely terrible

979 upvotes 1 year ago

A bodybuilder's hair transplant appears unnatural with a straight hairline and low density, possibly worsened by not using finasteride. The Turkish clinic is criticized for poor design, and the transplant may have been free for promotion.

community My hair loss journey and routine.

in Progress Pictures 1197 upvotes 1 year ago

The user successfully managed hair loss using Finasteride, Minoxidil, Ketoconazole shampoo, and a hair mask, experiencing significant hair growth and improved density. They attribute their success to consistency, improved nutrition, and a dedicated routine.

community My hair became curly after 9 months on fin + min. How common is this?

in Update 144 upvotes 5 months ago

Hair texture changes, such as hair becoming curly, are common when using treatments like finasteride and minoxidil. Users report various experiences with these treatments, including changes in hair density and texture, with some using additional products like alfatrodial, fluridil, and pyrilutamide for hair maintenance.

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Learn

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learn Cetirizine

How does cetirizine reduce inflammation linked to hair loss? Cetirizine is proposed to lower prostaglandin D2 and raise prostaglandin E2 around hair follicles; three small trials of a compounded 1% topical report modest increases in hair density and shaft thickness, with minoxidil doing better head-to-head. Topical cetirizine is off-label and unapproved for hair loss, and the evidence is too thin to call it effective or safe.

learn Hair Multiplication

extract, clone, and reinsert your own hair cells

learn Osteopontin

signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss

learn Adenosine

nucleoside used for hair regrowth stimulant properties

learn Valproic acid

an anticonvulsant repurposed for hair loss via histone inhibition

learn Stemoxydine

chemical from L'Oreal that encourages hair to enter growth phase

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Clinics

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Hair TransplantHair Loss TreatmentsSMP
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Experts

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

Hairo Fallas