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Androgens can both increase and decrease hair growth in different parts of the body.

Hair follicle dermal stem cells are key for regenerating parts of the hair follicle and determining hair type.

Latanoprost can make eyelashes longer, thicker, and darker.

Stem cell self-renewal is complex and needs more research for full understanding.

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

Platelet-rich plasma might help with hair growth and skin conditions, but more research is needed to prove its effectiveness and safety.

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

Hormones, especially androgens, play a key role in acne, which can be a symptom of systemic diseases like PCOS and may require targeted treatment.

Plant cell culture is a promising method for creating sustainable and high-quality cosmetic ingredients.

Platelet preparations generally show positive effects on wound healing and facial rejuvenation, but more thorough research is needed to confirm their effectiveness.

Microneedle technology has improved drug delivery and patient comfort but needs more research for broader use.

Hormone treatment for transgender patients may not need to be stopped before surgery, but more research is needed, especially on estrogen.

Manatee whiskers are specially adapted for touch in water.

Stretching skin increases a certain protein that attracts stem cells, helping skin regeneration.

Systemic Lupus Erythematosus has varied symptoms and is hard to diagnose, affecting many body parts and requiring careful clinical judgment.

Transit-amplifying cells are crucial for tissue repair and can contribute to cancer when they malfunction.

Fat stem cells from diabetic mice can help heal skin wounds in other diabetic mice.

New skin substitutes for treating severe burns and chronic wounds are being developed, but a permanent solution for deep wounds is not yet available commercially.

Cell-based therapies show promise for treating Limbal Stem Cell Deficiency but need more research.

The document concludes that primary scarring alopecias cause permanent hair loss, have unpredictable outcomes, and lack definitive treatments, requiring personalized care.

African American women report more hair issues and use different hair care practices than Caucasian women, and have different hair and scalp characteristics.

Nonhead hair transplantation is effective for patients with limited head donor hair, but more research is needed.

Low-dose oral minoxidil effectively treats non-scarring hair loss with some side effects like hypertrichosis and postural hypotension.

Certain cells outside the hair follicle's bulge area can quickly regenerate damaged hair follicles, potentially helping to reduce hair loss from cancer treatments.

3D bioprinting could improve skin repair and treat conditions like vitiligo and alopecia by precisely placing cells.

Early treatment of acne is important to prevent scarring and improve appearance, using medications that can have side effects.

Both human platelet lysate and minoxidil can promote hair growth, but they affect different genes and cell survival rates.

New treatments for skin and hair disorders in women of color address unique biological differences and include specific acne medications, sunscreens, skin lighteners, and hair care adjustments.

Bioengineered salivary glands in mice can produce saliva when tasting sour or bitter, but have different protein levels and nerve signals compared to natural glands.

Carboxytherapy can improve skin conditions with few side effects, but results may vary and are not guaranteed.