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Dandruff is mainly caused by a scalp reaction to yeast, can worsen hair loss, and antifungal treatments may help.

Shrinking skin cancer increases the chance of cancer in nearby lymph nodes.

Activating Nrf2 protects human hair follicles from oxidative stress and helps prevent hair growth inhibition.

Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.

The skin is the largest organ, protecting the body, regulating temperature, and producing hormones.

The model suggests that scalp tension could lead to hair loss, with factors like blood vessel hardening, enlarged oil glands, and poor microcirculation also playing a role. It also hints at a possible link between skull shape and baldness pattern.

Testing for CAG repeat polymorphism in the androgen receptor gene is not currently recommended for managing hypogonadism.

Androgenic steroids can slow down or stop the growth of certain skin fungi.

Topical DPCP is somewhat effective for hair loss in alopecia areata, but more research is needed.

Androgens can both increase body hair and cause scalp hair loss.

The document concludes that effective acne treatment requires a personalized combination of therapies and long-term commitment, with retinoids being important for maintenance.

Spironolactone is effective and safe for treating acne in women, especially those over 25 with hormonal imbalances.

Hair regrowth was seen in 83% of children with alopecia, immune system plays a role in the condition, and various treatments showed effectiveness for hair and nail disorders.

Older hair follicle stem cells have a reduced ability to renew themselves, leading to more hair loss.

Many treatments for alopecia areata have inconsistent results; for under 10s, use minoxidil with a corticosteroid, and for over 10s, add ILC and consider diphenylcyclopropenone for widespread cases.

Intramuscular triamcinolone and pulse therapy with oral predonine are effective for alopecia areata with manageable side effects, but better relapse prevention is needed.

Spironolactone is more effective than finasteride in treating excessive hair growth in women.

EZH1 and EZH2 are crucial for healthy hair growth and skin repair.

Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.

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

Epidermal stem cells are diverse and vary in activity, playing key roles in skin maintenance and repair.

Tight junctions are key for skin protection and controlling what gets absorbed or passes through the skin.

Male and female skin differ due to hormones, affecting conditions like hair loss, acne, and skin cancer, and suggesting a need for gender-specific treatments.

The Sonic hedgehog pathway is crucial for new hair growth during mouse skin healing.

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

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

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

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.

Alpha-hydroxy acids, like glycolic acid, safely improve skin issues and work on all skin types.

The skin protects the body and is constantly renewed by stem cells; disruptions can lead to cancer.