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Finasteride increases hair weight and count in men with hair loss, with best results after four years.

Hair and serum levels of zinc, copper, and iron are similar in people with alopecia areata and healthy individuals.

Substance from human umbilical cord blood cells promotes hair growth.

UV radiation damages hair by creating holes and peeling cuticle layers.

Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.

Ethosomes improve black tea extract absorption in hair dye.

The method can identify minerals in hair from water, and using coconut oil or conditioner can prevent mineral buildup.

AFM can help diagnose lichen planopilaris by identifying specific hair structure changes.

Frontal fibrosing alopecia in Brazil mostly affects postmenopausal women, often linked with hypothyroidism and eyebrow hair loss.

Hair follicle stem cells are crucial for touch sensation and proper nerve structure in mice.

5% minoxidil works better for hair growth than 1% minoxidil.

Child abuse is linked to higher BMI, but not because of hair cortisol or cortisone levels.

UV radiation significantly damages hair, especially with humidity, making it more vulnerable to further damage.

Skin stem cells in hair follicles are important for touch sensation.

Reassurance is important for postpartum hair shedding as it likely won't cause complete baldness.

Correcting trace element imbalances may help reduce alopecia areata symptoms.

Nickel, cobalt, balsam of Peru, fragrance mix, carba mix, and propylene glycol are common allergens causing scalp contact dermatitis.

Women who had bariatric surgery risk nutritional deficiencies causing skin issues during pregnancy and breastfeeding.

A pregnant woman with Werner's syndrome died during childbirth, but her baby survived and did not have the syndrome.

Suriname uses many plants for beauty, with potential for a beauty industry, but more evidence is needed for product effectiveness.

Men's personal care products often cause allergic skin reactions.

Biopolymers are increasingly used in cosmetics for their non-toxicity and skin benefits, with future biotech advancements likely to expand their applications.

PPD in mehendi can cause serious health problems and needs regulation.

A woman lost most of her hair due to an allergic reaction to a hair dye ingredient.

Isotretinoin effectively reduces acne but causes dry skin, higher skin pH, more redness, and hair loss.

TrichoScan helps identify subtle hair thinning in women with androgenetic alopecia.

Biotin supplementation during isotretinoin treatment for acne may help maintain skin hydration and improve hair growth.

The document explains how shampoos clean, rinses condition, one-step shampoos offer convenience, and hair growth promoters aim to prevent hair loss, emphasizing the importance of scientific evidence for their effectiveness.

The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.