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Caffeine in cosmetics may reduce cellulite, protect skin, and stimulate hair growth, but more research is needed on its use and effects.

Stress can stop hair growth in mice, and treatments can reverse this effect.

Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.

Prolactin affects hair growth cycles and can cause early hair follicle regression.

Nearly half of the French individuals surveyed reported having a sensitive scalp, more common in women, often linked to hair loss and symptoms like itching, and triggered by factors including shampoos and pollution.

Acne is caused by genetics, diet, hormones, and bacteria, with treatments not yet curative.

Human hair contains diverse proteins, including keratins and histones, which could help assess hair health and aging.

Botulinum toxin shows promise for various skin conditions but requires more research for confirmation and standardized use.

Fullerene nanomaterials help hair grow faster and increase hair follicles.

An enzyme other than TNAP might be responsible for vitamin B-6 metabolism in the skin.

Alopecia areata, a type of hair loss, is likely an autoimmune disease with a genetic link, but its exact cause is still unknown.

The enzyme PST is found in developing human kidneys and helps with detoxification and development.

Testosterone significantly affects sexual desire in both men and women, but its impact on women is more complex and influenced by psychological factors.

Negative expectations can cause adverse effects in dermatology treatments, like with finasteride for baldness, and careful communication can help reduce these nocebo responses.

New minoxidil compounds with better water solubility were made, but their full effects and safety need more research.

Stinging nettle has compounds that help with joint pain, arthritis, and prostate issues.

Charnoly bodies could be a marker for cell damage, and certain nutrients and proteins might prevent them, potentially helping with brain diseases and cancer.

Skin symptoms without a medical cause often reflect psychological stress and are influenced by culture, requiring a team approach for treatment.

COVID-19 and related stress may increase hair loss known as Telogen effluvium.

A new method was created to analyze certain chemicals in the urine of alopecia areata patients, revealing they have higher metanephrine content. This method can also be used for other related diseases.

Oral finasteride and dutasteride may negatively affect erectile function in rats.

The article concludes that understanding the molecular processes in hair follicle development can improve the quality of fibers like Angora and cashmere.

Finasteride and dutasteride, used for prostate issues and hair loss, can cause side effects like sexual dysfunction and mental issues, which may continue even after stopping the medication, a condition called post-finasteride syndrome, for which there's currently no cure.

Vitiligo is a skin condition causing white spots, more common in women, often starts before age 20, and can affect mental health.

Hair follicle development is controlled by interactions between skin tissues and specific molecular signals.

The paper concludes that understanding melanocyte development can help in insights into skin diseases and melanoma diversity.

Chemicals and body size might change when puberty starts and progresses, but more research is needed to confirm this.

Melatonin may help with sleep issues, depression, and cancer, but more research is needed.

Hair color production in mice is closely linked to the hair growth phase and may also influence hair growth itself.

Opioid painkillers can cause many side effects, including breathing problems and addiction, but are generally considered safe when used properly.