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Nonablative radiofrequency treatments, especially microneedle and fractional types, can improve acne scars by 25%–75% after 3-4 sessions, with full results in 3 months and some side effects.

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.

The study suggests that acne keloidalis nuchae is linked to conditions like pseudofolliculitis barbae, scalp infections, metabolic syndrome, and is more common in males with an average onset age of 25.4 years.

Telogen Effluvium is a condition causing excessive hair loss due to stress, illness, drugs, or hormonal changes, and can be treated with specific products or naturally resolves after 3-4 years.

A two-step method was created in 2015 to make more cells that help with hair growth, but they need to be combined with other cells for 4 days to actually form new hair.

A new treatment for hair loss was tested and most participants saw their hair loss stop within 2-8 weeks, with up to 50% more hair after 4 months, and no side effects.

Beard hair transplantation is generally satisfying, requires 250-800 grafts, uses FUE to avoid scars, needs careful planning, has some risks, and hair regrowth starts after 4-6 months.

The optimal gel-mask for hair loss contains 15% nettle juice, 0.5% carbopol ultrez 10 and sodium alginate, 0.1% potassium sorbate, and 0.4% PEG-40 hydrogenated castor oil.

PRP therapy is effective and safe for treating hair loss, increasing hair follicles and reducing hair loss after at least 4 treatments.

Garg and Garg created an affordable, easy-to-use training program for hair restoration surgery using everyday items, which can teach a technician the basics in 3-4 weeks with two hours of daily practice.

The book is a detailed guide on aesthetic surgery with useful content and visuals, but lacks new techniques and a CD, rated 4 out of 5.

Liposomes could improve how skin care products work but are costly and not very stable.

Chemotherapy damages hair follicles, causing hair loss and other cellular changes.

Four-amino acid part makes enzyme sensitive to finasteride.

Different types of androgens bind differently to two receptors, AR1 and AR2, in Atlantic croaker's brain and ovarian tissues, suggesting these receptors may control different androgen actions in fish.

New steroidal compounds could be effective for treating conditions related to 5α-reductase enzyme activity.

Dihydrotestosterone can be made from dehydroepiandrosterone in skin cells without needing testosterone.

The conclusion is that measuring how drugs partition into artificial sebum is important for predicting their delivery into hair and sebaceous follicles, and it provides better information than traditional methods.

New compounds may soon be tested to treat excessive hair growth in women.

Dutasteride is becoming a popular hair loss treatment, proving more effective than finasteride with similar side effects.

New pregnane derivatives are effective at inhibiting an enzyme linked to hair loss and reducing oil gland activity.

Some new progesterone derivatives are better at blocking testosterone conversion than a common drug.

5α-Reductase inhibitors can help treat hair loss, acne, and prostate issues by reducing DHT levels.

New research is needed to create better drugs that block the enzyme responsible for conditions like male baldness and prostate enlargement.

The document outlines a method for diagnosing hair loss and suggests specific treatments based on the diagnosis.

Activating PPAR-γ signalling can protect hair follicle stem cells from damage caused by chemotherapy.

Korean Red Ginseng may protect against hair loss caused by chemotherapy.

Researchers developed a model to predict how well certain compounds can block an enzyme related to hair loss and prostate issues, suggesting a 50 mg dose of finasteride might be effective based on lab and body data.

A new staining method helps tell growing from resting hairs to diagnose hair loss.

Two plywood factory workers developed contact dermatitis from phenol-formaldehyde resin, a known allergen.