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Androgens have complex effects on hair growth, promoting it in some areas but causing hair loss in others, and our understanding of this is still evolving.

New hair can grow from large wounds in mice, but less so as they age, involving reprogramming of skin cells and specific molecular pathways.

Finasteride works for hair loss by maintaining existing hair follicles, not reversing miniaturization.

Finasteride helps hair growth but stopping it causes faster hair loss.

The document explains how hair follicles develop, their structure, and how they grow.

Hair follicles can regrow in wounded adult mouse skin using a process like embryo development.

Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.

The conclusion is that certain cell interactions and signals are crucial for hair growth and regeneration.

Hair follicles significantly increase the speed and amount of caffeine absorbed through the skin.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.

Hair follicles greatly increase caffeine absorption through the skin shortly after it's applied.

Hair follicle regeneration needs special conditions and young cells.

Wnt10b overexpression can regenerate hair follicles, possibly helping treat hair loss and alopecia.

The conclusion is that hair growth can be improved by activating hair cycles, changing the surrounding environment, healing wounds to create new hair follicles, and using stem cell technology.

Nanoparticles around 600-700 nm can effectively enter and stay in hair follicles for days, which may help in delivering drugs to specific cells.

The research provides specific measurements for hair follicles that can improve hair transplant and regeneration techniques.

Hair follicles offer promising targets for delivering drugs to treat hair and skin conditions.

Mice can grow new hair follicles after skin wounds through a process not involving existing hair stem cells, but requiring more research to understand fully.

Eruptive vellus hair cysts are a cosmetic skin condition, more common in young adults, with few effective treatments.

The hair follicle infundibulum plays a key role in skin health and disease, and understanding it better could lead to new skin disease treatments.

Hair loss in women links to inflammation around hair follicles.

Immune cells help regulate hair growth, and better understanding this can improve hair loss treatments.

Hair can regrow in large wounds through a process similar to how hair forms in embryos, and understanding this could lead to new treatments for hair loss or scarring.

Three specific proteins can turn adult skin cells into hair-growing cells, suggesting a new hair loss treatment.

In vivo confocal scanning laser microscopy is an effective, non-invasive way to study and measure new hair growth after skin injury in mice.

CD10 and CD34 levels change during hair development and different hair growth stages, which could be important for hair regeneration treatments.

Using longer PEG chains helps nanoparticles penetrate hair follicles better, improving drug delivery for conditions like alopecia.

Scientists have made progress in understanding hair follicle stem cells, identifying specific genes and markers, and suggesting their use in treating hair and skin conditions.

Hair follicle cells resist turning into skin cells.