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research What is the best sampling region for endocrine hair analysis? A comparison between the posterior vertex and occipital region and recommendation for standardization

9 citations , April 2025 in “Psychoneuroendocrinology”

This study found no consistent differences between the posterior vertex and occipital region for hair hormone analysis, but noted significant variations in specific hormone concentrations, highlighting the need for standardized sampling practices.

research 313 Different polyamine levels in the vertex and occipital hair of pattern hair loss patients

September 2019 in “Journal of Investigative Dermatology”

This study found that polyamine levels were higher in the vertex hair than in occipital hair among patients with pattern baldness, suggesting a relation to hair loss development in the scalp's vertex region.

research Micro-segmental analysis of the entry pathway and distribution of zolpidem in hair from different scalp regions after a single dose

May 2023 in “Frontiers in chemistry”

This study found that hair from the vertex posterior is a reliable sampling region for detecting zolpidem intake, showing consistent drug concentration and peak position compared to other scalp regions.

Congenital Triangular Alopecia: Is It Always Confined to the Fronto-Temporal Region?

research Congenital triangular alopecia: Is it always confined to fronto-temporal region?

4 citations , May 2015 in “Indian Journal of Dermatology, Venereology and Leprology”

Congenital triangular alopecia can occur outside the typical fronto-temporal region.

research Hair Regrowth and Increased Hair Tensile Strength Using the HairMax LaserComb for Low-Level Laser Therapy

75 citations , August 2003 in “International journal of cosmetic surgery and aesthetic dermatology”

This study found that low level laser therapy with a HairMax LaserComb improved hair counts and tensile strength in patients with androgenetic alopecia, particularly in males and vertex areas.

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Community Join

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community My thoughts after 4 years of shaving my head and SMP (27, NW3.5V)

16 upvotes 3 years ago

After suffering from hair loss and trying various treatments like finasteride, minoxidil, RU58841, and scalp micropigmentation without lasting success, the individual found freedom and a renewed sense of self by shaving their head and accepting their baldness. They encourage others struggling with hair loss to not waste years searching for a cure and to consider embracing a shaved head as a positive solution.

community M30, month 5 of dutasteride and minoxidil

in Progress Pictures 250 upvotes 11 months ago

A 30-year-old male experienced significant hair regrowth after five months of using topical minoxidil (5% foam) and oral dutasteride (0.5 mg daily). The user reported no side effects and was grateful for the progress, despite the rapid gains slowing down.

community Exact 4 month progress oral fin topical min

88 upvotes 4 months ago

The user shared their 4-month progress using oral finasteride and topical minoxidil, with a specific application routine. They adjust the minoxidil application to manage costs, applying it daily with variations in quantity and additional tretinoin on certain days.

community KX-826 0.5% BID ~2 months monotherapy(?) results

8 upvotes 1 month ago

The user reported positive results using KX-826 0.5% twice daily for hair loss, noting progress in the temple area with no systemic side effects. They avoided finasteride and minoxidil due to concerns about side effects and inconvenience, respectively, and used ketoconazole shampoo for seborrheic dermatitis.

community 5+ years on meds, still losing

in Progress Pictures 11 months ago

The user has been on finasteride and minoxidil since 2020 and increased dutasteride and minoxidil doses in June 2024, but still experiences hair loss. Despite trying pyrilutamide without success, opinions vary on whether the hair loss is significant, with some suggesting it might be due to lighting, angles, or a regular shedding cycle.

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