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research Abnormal inner root sheath of the hair follicle in the loose anagen hair syndrome: An ultrastructural study

31 citations , December 2010 in “Journal of the American Academy of Dermatology”

This study reports that structural abnormalities in the inner root sheath of hair follicles may cause the hair shaft to be loosely attached in patients with loose anagen hair syndrome.

research Environment of the Anagen Follicle

4 citations , January 2018 in “Advances in Experimental Medicine and Biology”

This article discusses the structures surrounding hair follicles and introduces aspects like follicle groups and the dermal sheath, but it reports no new research findings.

research The balance of Bmp6 and Wnt10b regulates the telogen-anagen transition of hair follicles

35 citations , February 2019 in “Cell Communication and Signaling”

This study found that BMP6 and Wnt10b competitively regulate the transition between hair follicle growth phases, offering new insights into hair follicle cycling and potential hair loss treatments.

research An estrogen receptor pathwayregulates thetelogen-anagen hair follicle transition andinfluences epidermal cell proliferation (epidermis/estrogen/keratinocyte/differentiation/mesenchymal

January 1996

This study found that estradiol affects hair growth in mice by regulating the transition of hair follicles from rest to growth phases via the estrogen receptor pathway in the dermal papilla.

Effects of Platelet-Rich Plasma on Hair Follicle Count and Hair Ratios in Androgenic Alopecia: Alone or Combined with Other Treatments

research Effects of platelet-rich plasma application on hair follicle count, telogen/anagen ratio, and miniaturized hair ratio in patients with androgenic alopecia: alone or in combination with other treatments

July 2025 in “Journal of Dermatological Treatment”

This study found that platelet-rich plasma significantly improved hair growth parameters in androgenic alopecia patients and was even more effective when combined with minoxidil, particularly in reducing vellus hair.

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Community Join

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community Anagen (@anagenxyz) claiming they've cracked scalp-only DHT blocking - thoughts?

15 upvotes 3 days ago

A company is developing a topical dutasteride that targets hair follicles without significantly affecting systemic DHT levels, with trials underway to measure its effectiveness. Users discuss the potential benefits and skepticism around the formulation compared to existing treatments.

community Precision Dutasteride (Anagen)

3 upvotes 5 days ago

A topical dutasteride by Anagen aims to target hair follicles while reducing systemic exposure, showing promising initial results in reducing serum DHT levels. The product is undergoing further trials to measure its effectiveness on hair growth and DHT levels.

community PP405 Won't Work Long Term: Hair Follicle Damage Due to Abuse of the ISR System

67 upvotes 11 months ago

PP405 may damage hair follicles if used long-term, suggesting cycling might be necessary. Combining it with finasteride could help maintain hair growth.

community PP405 Won’t Work: Follicle Is Miniaturized, Fibrosed, And Missing Key Support Cells

7 months ago

PP405 is ineffective for miniaturized, fibrosed hair follicles in androgenetic alopecia. AMP303 may activate hair follicle stem cells, but minoxidil and finasteride are still the main treatments.

community Anagen is now selling pyrilutamide

139 upvotes 4 years ago

Pyrilutamide, a potential hair loss treatment that has recently been released for sale, and is thought to have similar efficacy to Dutasteride without side effects. It was discussed in terms of its effectiveness compared to Finasteride, its use by females, and whether it can be safely mixed with RU58841.

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Learn

9 / 801 results

learn Caffeine

Does caffeine stimulate hair growth or only slow hair loss? Caffeine stimulates hair follicles in laboratory cultures, and one open-label trial in 210 men found a 0.2% caffeine topical non-inferior to minoxidil 5% on an anagen-ratio endpoint; there is no placebo-controlled evidence that it regrows hair, and none at all in alopecia areata or telogen effluvium.

learn Latanoprost

glaucoma medication with hair follicle stimulant effects

How does latanoprost work to make eyelashes and possibly scalp hair grow? Studies report that latanoprost, a prostaglandin analog, lengthens the anagen (growth) phase of hair follicles, which is the mechanism given for the eyelash thickening seen in glaucoma patients; on the scalp the evidence is one 16-man pilot study and animal work, so the effect there is unproven.

learn Exosomes

Microscopic delivery system that sends growth-promoting signals to hair follicles

learn Osteopontin

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

learn Fluridil

a topical anti-androgen with less systemic involvement

learn Low Level Laser Therapy

laser therapy for anti-inflammatory and likely insignificant hair regrowth effects

learn Niacinamide

How does Niacinamide support the hair follicle’s nutrition? Niacinamide nourishes hair follicles by boosting energy production and supporting antioxidant defenses.

learn oleic acid

How does Oleic Acid support hair follicle strength and growth? Oleic acid strengthens hair follicles by enhancing hydration and reducing inflammation.

learn Scalp Micropigmentation

Will scalp micropigmentation damage my existing hair or follicles? Scalp micropigmentation does not damage existing hair or follicles.

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