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Lasers and light treatments are now the most common ways to remove hair.

Androgens and other hormones affect hair growth and skin conditions like acne.

Topical minoxidil helps treat hair loss in teens, but more research needed for safe options.

Female pattern hair loss has multiple causes and treatments, with new therapies showing promise.

Dyes can penetrate human skin and hair follicles up to 1.2 mm deep and the sebaceous gland can store dye; Indocyanine Green lotion was made for safe dyeing and monitoring.

Women with androgenetic alopecia have lower zinc and iron levels.

Children's hair is more elastic, but tensile strength is similar across different factors.

Hair strength is similar across different scalp areas, and not affected by age, gender, or hair thickness.

Setipiprant did not significantly improve hair growth in men with hair loss.

Laser treatment can effectively reduce unwanted hair growth, particularly for people with fair skin and dark hair.

PRP works faster and is a safe alternative to steroids for treating alopecia areata.

Dogs have varying numbers of touch-sensitive Merkel cells in different skin areas, with most in the oral mucosa and facial skin, unrelated to age, sex, breed, or color.

Reflectance confocal microscopy is useful for diagnosing and monitoring skin diseases, but it has limitations and requires expertise for correct use.

Understanding the cause of bitemporal hair loss is key to deciding the right treatment.

Human hair keratin might be good for filtering out harmful substances from water.

Repeated dyeing and shampooing cause hair color loss and damage.

Bimatoprost and clobetasol are both effective for scalp hair loss, but bimatoprost works faster, has fewer side effects, and grows more colored hair.

Researchers found new hair and nail genes, how hair reacts to UV, differences in white and pigmented hair growth, nerve changes in alopecia, treatments for baldness and alopecia, a toenail condition linked to a genetic disorder, and that nail fungus is more common in people with psoriasis.

TrichoScan is a reliable method for measuring hair growth and is useful for assessing hair loss treatments.

Patchy alopecia areata can affect only pigmented hairs, leaving gray hairs untouched.

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

Steroids help hair regrowth, and minoxidil slows post-steroid hair loss, but effects are temporary.

Hair samples can reliably monitor tacrolimus levels in kidney transplant patients.

Topical JAK inhibitors may help treat alopecia universalis by promoting hair regrowth.

Engineered skin substitutes can grow hair but have limitations like missing sebaceous glands and hair not breaking through the skin naturally.

Only skin melanocytes, not other types, can color hair in mice.

An 82-year-old woman's hair turned white suddenly, likely due to a rare form of alopecia that targets pigmented hair.

Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.

A man's sudden hair loss and color change to white was diagnosed as alopecia areata and it improved on its own after six months.

Intense pulsed light treatment mainly damages pigmented hair parts but spares stem cells, allowing hair to regrow.