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research Feather arrays are patterned by interacting signalling and cell density waves

133 citations , February 2019 in “PLoS Biology”

This research found that feather pattern formation in birds is regulated by a mechanochemical system involving fibroblast growth factor and bone morphogenetic protein signaling, which is altered in the flightless emu and ostrich.

research Dental cell type atlas reveals stem and differentiated cell types in mouse and human teeth

116 citations , September 2020 in “Nature Communications”

This study reports previously unrecognized cellular complexity in growing mouse incisors, suggesting species-specific differences in cell dynamics between mouse and human teeth related to growth and differentiation.

research Commitment of Oral-Derived Stem Cells in Dental and Maxillofacial Applications

94 citations , December 2018 in “Dentistry Journal”

This review article explores the potential of various mesenchymal stem cell populations derived from oral tissues, such as DPSCs and hPCy-MSCs, in bone tissue engineering and regeneration, detailing their high plasticity and clinical applications in dental procedures.

research Progesterone promotes the survival of newborn neurons in the dentate gyrus of adult male mice

85 citations , May 2009 in “Hippocampus”

This study found that progesterone enhances the survival of newborn neurons in the hippocampus of adult male mice, which is associated with improved spatial learning and memory.

research Localization of Zinc in a Dense Fiber-Connecting Piece Fraction of Rat Sperm Tails Analogous Chemically to Hair Keratin

72 citations , September 1975 in “Biology of Reproduction”

This study found that zinc is primarily located in the tails of mature rat sperm, associated with -S-S-bonded structures, and suggests a possible similarity in zinc interactions between sperm keratin and hair proteins.

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Community Join

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community Dental technician is convinced that he has found the cause of pattern hair loss

314 upvotes 2 years ago

A dental technician claims malocclusion causes pattern hair loss due to poor scalp circulation. Users debate this, noting treatments like finasteride, minoxidil, and microneedling focus on DHT and blood flow.

community More density. 1 year and 3 months of progress.

44 upvotes 1 week ago

The user achieved increased hair density using a regimen of 1 mg finasteride, 5% topical minoxidil, 0.025% tretinoin, dermarolling, ketoconazole shampoo, and supplements. They expressed interest in oral minoxidil but faced prescription challenges.

community Better density or just longer hair?

12 upvotes 1 week ago

The conversation discusses using dutasteride every other day for hair loss, with suggestions to increase the dose and add minoxidil for better results. Users recommend more frequent dosing to prevent further hair loss and achieve regrowth.

community Oral minoxidil Denmark. How did you get it?

in Minoxidil 8 upvotes 1 month ago

In Denmark, obtaining a prescription for oral minoxidil is challenging, leading some to purchase it online without local doctor involvement. Users discuss alternative treatments like finasteride and dutasteride, with some monitoring their health closely when using these medications.

community From Denial to Acceptance: Hair as Amplifier, Not Foundation – Open to Hair Systems for Freedom

in Hair Systems 9 upvotes 7 months ago

A 24-year-old with early hair loss is managing it with finasteride, minoxidil, and dutasteride, and is considering using a hair system for more styling options while maintaining transparency. They emphasize confidence and self-expression over hair, viewing it as an amplifier rather than a foundation.

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Learn

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learn Stemoxydine

Can stemoxydine help improve hair density in both men and women? Stemoxydine is a cosmetic ingredient, not an approved hair loss drug, and the manufacturer's three-month trials enrolled men only, reporting a small increase in measured hair density. One small uncontrolled study that included women reported improvement in both sexes but more in men, so a benefit for women is not established.

learn Hair Transplant

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

learn Omega 3

How long does it usually take to see results in hair density after starting omega-3 supplements? There is no tested timeline: no trial has studied omega-3 on its own for hair density. The one human trial that reported an improvement ran for six months and used a combined omega-3/omega-6 plus antioxidant supplement, so any change would be judged in months rather than weeks — and may not appear at all.

learn Procyanidin

How long should Procyanidin be used before seeing visible improvements in hair volume or density? The two published human trials of 1% topical procyanidin B-2 measured results at four and six months, so any visible change would take at least that long. Both were small, industry-run studies in men only, and procyanidin is not an approved hair-loss treatment.

learn Scalp Micropigmentation

When can I wash my hair after scalp micropigmentation? Wait 3 to 10 days before washing your hair after scalp micropigmentation.

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