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Hair follicles may soon be used more for targeted and systemic drug delivery.

Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.

Understanding hair follicle anatomy helps diagnose hair disorders.

Estrogen loss during menopause worsens skin health, but hormone replacement therapy may improve it, though more research is needed.

Horizontally sectioned scalp biopsies are more reliable for diagnosing hair loss in women when three samples are taken instead of one.

Stem cell therapy, particularly using certain types of cells, shows promise for treating hair loss by stimulating hair growth and development, but more extensive trials are needed to confirm these findings.

Exosomes could potentially enhance tissue repair and regeneration with lower rejection risk and easier production than live cell therapies.

Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.

Probiotic bacteria improved skin and hair health in aged mice.

Stress can stop hair growth in mice, and treatments can reverse this effect.

Oxidative stress contributes to hair graying and loss as we age.

Isotretinoin effectively treats severe acne and similar conditions, but has common, mostly reversible side effects, requiring careful patient monitoring.

Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.

Stem cell plasticity is crucial for wound healing but can also contribute to cancer development.

Targeting androgen receptors could be a promising way to treat skin disorders with fewer side effects.

Eclipta alba extract may help hair grow similarly to Minoxidil.

Minoxidil can help grow hair in mice by making cells grow and improving hair quality. More research needed.

Estrogens help reduce skin aging, and SERMs might offer similar benefits without the risks of hormone therapy.

The document concludes that while significant progress has been made in understanding skin biology and stem cells, more research is needed to fully understand their interactions with their environment.

Scientists turned rat thymus cells into stem cells that can help repair skin and hair.

Hair loss occurs due to fewer papillary cells, smaller follicles, and shorter growth phases.

Stress increases nerve fibers and immune cell activity in mouse skin, possibly worsening skin conditions.

Tiny particles from stem cells help activate hair growth cells and encourage hair growth in mice without being toxic.

Wnt and Notch signaling help wound healing by promoting cell growth and regulating cell differentiation.

Applying a special compound can promote hair growth without harmful side effects.

Skin's Regulatory T cells are crucial for maintaining skin health and could be targeted to treat immune-related skin diseases and cancer.

Fetal wound healing changes with development, affecting inflammation and collagen, which may influence scarring.

ICG-enhanced NIR laser therapy may be a promising acne treatment with improvement and no side effects.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

Correct skin biopsy techniques are crucial to avoid misdiagnosis of skin diseases.