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Black dots under trichoscopy can appear in different hair and scalp conditions, not just in alopecia areata.

The best results in surgical hair restoration come from careful techniques, optimal use of limited hair supply, correct hair direction, saving hair for key areas, understanding scarring effects, and adjusting hair graft density.

Effective repair of bad hair transplants requires skilled techniques and careful use of donor hair, with strategies like reimplantation and camouflage, and new methods to minimize scarring.

The document concludes that alopecia areata is an autoimmune disease without a definitive cure, but treatments like corticosteroids are commonly used.

Selective non-steroidal inhibitors of 5α-reductase type 1 can help treat DHT-related disorders.

Most women preferred the 1% pyrithione zinc shampoo for better hair smoothness and less frizz while controlling dandruff.

Dupilumab helped a woman with severe hair loss regrow her hair quickly and maintain it for six months after stopping treatment.

Some herbs and their components might help treat hair loss by affecting various biological pathways, but more research and regulation are needed.

Imiquimod used intravaginally for cervical issues can cause temporary hair loss, especially if severe side effects occur.

Finasteride reduces scalp DHT levels, potentially treating male pattern baldness.

Testosterone can slow down hair growth when combined with certain cells from bald scalps, and this effect can be blocked by an androgen receptor blocker.

Researchers found that dissecting folliculitis of the scalp is linked to obesity, severity increases with duration and number of nodules, and early treatment is important to prevent scarring.

Drugs penetrate scalp skin better than abdominal skin, with scalp hair follicles aiding in higher drug delivery.

Two people had unusual ring-shaped hair loss due to an autoimmune disorder.

Scalp cooling can reduce chemotherapy-induced hair loss and should be available in all hospitals.

Hair gets thinner and grayer with age, and density decreases more in men on top and in women on top and back.

Human scalp hair follicles have PGE2 and its receptors, which might affect hair growth.

Clindamycin and rifampicin are the most effective treatments for folliculitis decalvans, but more research is needed.

The study found that balding scalps have more thin hairs and larger oil glands, which might contribute to skin conditions related to hair loss.

Balding hair follicle cells are smaller, grow less well, and need more effort to culture than non-balding cells.

The study found that using 2% minoxidil solution can help grow hair and is safe.

Age, gender, and hair loss affect scalp characteristics differently in young Caucasian adults.

Intralesional triamcinolone is the most effective treatment for alopecia areata, followed by excimer light therapy, and then topical minoxidil. The scalp responds better to treatment than the beard area.

Permanent hair loss from cicatricial alopecia is treated by reducing inflammation and managing symptoms, but regrowth in scarred areas is unlikely.

Mesotherapy is a promising alternative to minoxidil for hair loss with mild side effects.

Fat injections can help regrow hair in stubborn hair loss cases.

Fermented papaya and mangosteen in hair care products helped prevent hair loss and improve hair thickness.

Finasteride safely and effectively treats male pattern hair loss, but may cause reversible sexual issues and harm male fetuses.

High-frequency ultrasound can effectively visualize and assess hair loss.

Men with baldness due to androgenetic alopecia still have hair stem cells, but lack specific cells needed for hair growth.