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The document provides a method to classify human hair growth stages using a model with human scalp on mice, aiming to standardize hair research.

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

Lactate production is important for activating hair growth stem cells.

Visible light can damage skin and most sunscreens don't block it well; more research is needed on its effects and protection methods.

Hair and wool have complex microscopic structures with microfibrils and varying cystine content.

Regulatory T-cells are important for healing and regenerating tissues in various organs by controlling immune responses and aiding stem cells.

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

Women look young for their age due to larger lips, less sun damage, and genes that prevent gray hair and wrinkles.

Chemotherapy can cause skin problems like hair loss, mouth sores, and skin darkening, and recognizing these can affect treatment decisions.

The conclusion is that accurate diagnosis of different types of hair loss requires good teamwork between skin doctors and lab experts.

Lower doses of treatments for hirsutism and acne in PCOS are effective and cause fewer side effects.

Current treatments for alopecia show no significant long-term benefits.

Stem cell niches support, regulate, and coordinate stem cell functions.

Latanoprost can make eyelashes longer, thicker, and darker.

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

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

Minoxidil treats hair loss, promotes growth, has side effects, and has recent patents.

Estrogen therapy can reduce skin aging but has cancer risks.

The document concludes that more research is needed to better understand and treat primary cicatricial alopecias, and suggests a possible reclassification based on molecular pathways.

Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.

The document concludes that accurate diagnosis of ichthyosis is crucial for treatment and genetic advice, and ongoing research is needed for better therapies.

Lupus affects the body and skin, causing joint pain and skin issues that can be treated with steroids and antimalarial drugs.

Understanding hair follicle anatomy helps diagnose hair disorders.

Protoporphyrin IX is useful in cancer treatment but can cause health problems if not properly regulated.

The HR protein helps hair grow by blocking a hair growth inhibitor, aiding in hair follicle regeneration.

Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.

Different types of stem cells and their environments are key to skin repair and maintenance.

TGF-β signaling is crucial for stem cell maintenance, differentiation, and has implications for cancer treatment.

Microneedles help improve skin appearance and deliver skin treatments effectively, but safety concerns need more research and regulation.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.