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research Amaranthus Extract Promotes Healthy Follicles and Anagen Hair Density-A Randomized Placebo-Controlled, Double-Blinded Study.

October 2025 in “PubMed”

This study found that applying amaranthus extract cream to the scalp significantly improved terminal hair density, anagen hair count, and pilary index in men with male pattern hair loss, suggesting it may be a safe and effective supportive therapy.

Promotion of Anagen, Increased Hair Density, and Reduction of Hair Fall in a Clinical Setting Following Identification of FGF5-Inhibiting Compounds via a Novel 2-Stage Process

research Promotion of anagen, increased hair density and reduction of hair fall in a clinical setting following identification of FGF5-inhibiting compounds via a novel 2-stage process

27 citations , February 2017 in “Clinical, Cosmetic and Investigational Dermatology”

In this study, a topical formulation with compounds from the monoterpenoid family significantly improved hair growth indicators like anagen:telogen ratio, hair fall, and visual hair density in men and women with pattern hair loss.

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 Comparison of Hair Follicle Density and Anagen:Telogen Ratio between Topical Minoxidil Alone and Its Combination with Platelet-Rich Plasma Exosomes in a Mice Model of Androgenetic Alopecia

May 2026 in “Malaysian Journal of Medicine and Health Sciences”

This study found that in a testosterone-induced androgenetic alopecia mouse model, the combination of PRP-derived small extracellular vesicles and 5% minoxidil significantly improved hair follicle density and the anagen-to-telogen ratio compared to minoxidil alone, suggesting a synergistic effect that enhances hair growth.

research Minoxidil improved hair density in an Asian girl with short anagen syndrome: a case report and review of literature

3 citations , July 2016 in “International Journal of Dermatology”

This case report describes an Asian girl with short anagen syndrome who experienced improved hair density after using minoxidil.

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Community Join

5 / 471 results

community Trying to understand severe shedding and progressive density loss after a successful hair transplant

8 upvotes 1 week ago

The user is experiencing severe shedding and progressive hair density loss after a successful hair transplant, despite using finasteride, minoxidil, microneedling, and scalp treatments. Suggestions include trying stronger treatments like oral dutasteride, topical RU58841, and higher doses of oral minoxidil.

community New Hair Loss Treatment: Adipose Derived Secretomes

18 upvotes 1 year ago

Adipose-derived stem cell secretome showed significant improvement in hair density and growth, especially when combined with minoxidil, suggesting a synergistic effect. The study had limitations, including a small sample size and potential bias.

community The ultimate Regimen for density and thick ess

10 upvotes 1 year ago

The regimen for hair loss includes topical finasteride, clascoterone, tretinoin, minoxidil, oral saw palmetto, beta-sitosterol, vitamin D, microneedling, and anti-fungal shampoo. Expected benefits are increased hair growth and density, with considerations for potential skin irritation and interactions between treatments.

community Redensyl for Hair Loss — What It Can and Can’t Do

9 months ago

Redensyl is a plant-based treatment that may support hair regrowth by reactivating dormant follicles and improving hair density, especially in early-stage thinning. It is not a miracle cure and results vary; it is less proven than Minoxidil or Finasteride and may cause scalp irritation.

community Positive Hair Result in Patient using Tirzepatide

4 upvotes 1 year ago

A 57-year-old man with male pattern hair loss and insulin resistance experienced hair regrowth and weight loss after using tirzepatide, without other hair treatments. Dysregulated glucose metabolism is linked to hair loss, with tirzepatide potentially improving hair density by normalizing insulin resistance.

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Learn

9 / 25 results

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 Stemoxydine

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

learn Valproic acid

an anticonvulsant repurposed for hair loss via histone inhibition

learn Osteopontin

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

learn Low Level Laser Therapy

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

learn Hair Transplant

Does a hair transplant increase hair density? A hair transplant can improve density, but results vary by individual factors.

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 Finasteride

Does hair strand thickness decrease in men with androgenic alopecia? Can finasteride help restore it? Androgenic alopecia thins hair strands by miniaturizing follicles. The pivotal finasteride trials (1,553 men, 1 mg/day, two years) report increased hair counts and improved assessed appearance, but they measured density, not the diameter of individual strands, so the effect on thickness itself is not established.

learn Adenosine

Adenosine: How natural is this ingredient and how does it act on the scalp? Adenosine is a naturally occurring compound that promotes hair growth by extending the anagen phase.

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

Hairo Fallas