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Matriptase is crucial for skin barrier, hair growth, and may contribute to skin cancer.

Hormones like estrogen, testosterone, progesterone, and prolactin play complex roles in female sexual function, with testosterone potentially improving sexual desire, arousal, and satisfaction. However, more research is needed to establish safe and effective hormone treatments for female sexual dysfunction.

Antioxidants can benefit skin health but should be used carefully to avoid negative effects.

Smart biomaterials that guide tissue repair are key for future medical treatments.

Some common medications can harm male fertility, but many effects can be reversed.

Lasers and light sources can effectively remove hair, work best on fair skin with dark hair, and usually need multiple treatments.

Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.

Degraded hair shafts resist contamination and can be easily cleaned.

Testosterone is linked to cardiovascular risk factors and stroke, but its exact role is unclear.

The method effectively detects banned substances in urine for sports antidoping.

Testosterone therapy can help improve sexual desire and function in postmenopausal women but may cause side effects and is not FDA-approved for this use.

D'orenone stops root hair growth by disrupting auxin transport, but adding auxin can reverse this.

Human hair contains various lipids that vary among individuals and help protect the hair.

Human keratinocytes do not naturally respond to androgens.

Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.

Eyebrow loss has many causes and requires accurate diagnosis for proper treatment.

A woman developed male traits from accidental contact with her husband's testosterone gel.

Jasmonic acid helps plants grow, defend against threats, and survive stressful conditions like drought and salt.

Bioactive molecules show promise for improving skin repair and regeneration by overcoming current challenges with further research.

Hair growth and shedding are linked and can be disrupted, causing a delay known as the hair eclipse phenomenon, which is common in certain hair conditions and could lead to new treatments.

Hair texture changes with age due to varying levels of lipids.

Researchers found markers that can tell if hair has been bleached, which could improve hair test accuracy.

Testosterone increases hair growth and acne in transgender men.

Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.

Androgens like testosterone may help treat traumatic brain injury by reducing mitochondrial stress and inflammation.

Testosterone therapy can help women with androgen deficiency by improving energy, sex drive, and bone health with few side effects.

Urologic diseases and treatments in older men can negatively affect fertility, and doctors should talk to patients about this.

AGA in children needs careful diagnosis due to low androgen levels and possible other causes.

A woman's virilization symptoms were caused by her partner's use of testosterone cream, which resolved after they separated.

Two teenage brothers had a rare, treatment-resistant form of female-pattern hair loss with unusual scalp changes.