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More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.

Laser hair removal is the most requested cosmetic procedure and has become a scientifically-based treatment suitable for all skin types.

Male and female skin differ in many ways, which could lead to gender-specific skin treatments.

Most women with excess hair growth have an underlying hormonal issue, often treated with medication and hair removal methods.

Dermatologists need to understand hair products to treat hair and scalp issues better.

Skin cells produce and activate vitamin D, which regulates skin functions and supports hair growth.

Bone Morphogenetic Proteins (BMPs) help control skin health, hair growth, and color, and could potentially be used to treat skin and hair disorders.

Male hormones, particularly DHT, are linked to male pattern hair loss, and treatments like finasteride can help, but they don't work for postmenopausal women's hair loss, which may have different causes.

Androgens can cause hair growth in some areas and hair loss on the scalp.

Understanding hair growth involves complex interactions between molecules and could help treat hair disorders.

Estrogen therapy can reduce skin aging but has cancer risks.

Vitamin D is important for skin health and may affect conditions like psoriasis and hair loss, but more research is needed to understand its role fully.

Modern science supports the use of some Ayurvedic plants for health, as ancient practices suggested.

Sonic hedgehog signaling is crucial for hair growth and maintaining hair follicle identity.

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

Cancer therapy can cause various skin problems, including hair loss, skin darkening, painful hand-foot syndrome, and severe skin damage.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

One minoxidil-sensitive potassium channel exists in human hair follicles.

The document concludes that certain genetic mutations and dietary factors are involved in acne development, and treatments like isotretinoin and diet changes can help manage it.

Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.

Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.

Hair elemental analysis could be useful for health and exposure assessment but requires more standardization and research.

The document concludes that adult mammalian skin contains multiple stem cell populations with specific markers, important for understanding skin regeneration and related conditions.

Exosomes from dermal papilla cells can help grow hair and might treat hair loss.

The conclusion is that tissue structure is key for stem cell communication and maintaining healthy tissues.

Certain mice without specific receptors or mast cells don't lose hair from stress.

Wnt signaling is crucial for skin and hair development and its disruption can cause skin tumors.

Minoxidil and finasteride treat hair loss; more research needed for other options.

Topical drugs and near-infrared light therapy show potential for treating alopecia.

Advanced human skin models improve drug development and could replace animal testing.