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Platelet-rich plasma is a safe and effective treatment for hair loss, with fewer relapses than steroid treatment.

Regenerated hairs can regain their color if the wound occurs during a certain stage of hair growth, and this process is helped by specific skin cells and proteins.

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

Spiny mice are better at regenerating hair after injury than laboratory mice and could help us understand how to improve human skin repair.

The authors suggest that a new type of hair loss exists, which is different from alopecia areata.

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

Hair greying is caused by oxidative stress damaging hair follicles and melanocytes.

The document says that hair loss in women is often due to androgenic alopecia, similar to male baldness, and that hirsutism is treated with hormonal and cosmetic methods.

Microneedling helps increase the absorption of a melanin product into hair follicles, which may improve laser hair removal effectiveness.

Laser hair removal is safe and effective for fair-skinned people with dark hair, and using eflornithine with laser treatments can improve results.

Intralesional triamcinolone acetonide is better than PRP for treating scalp alopecia areata, leading to faster and more complete hair regrowth.

Japanese researchers created new hair follicles from human cells that grew hair when put into mice, and other findings showed a link between eye disease severity and corneal thickness, gene mutations affecting hearing and touch, and the safety of the shingles vaccine for adults over 50.

Isotretinoin shrinks sebaceous glands without affecting hair or skin color, unlike etretinate.

Marie Antoinette syndrome causes sudden hair whitening, but its exact cause is unknown.

Applying calreticulin can speed up wound healing in diabetics.

Patient-derived melanocytes can potentially treat vitiligo by restoring skin pigmentation.

Gonadal hormones significantly affect the severity of alopecia areata in mice.

A chubby child can still be malnourished.

Melanocyte transplantation can safely restore skin color, especially in stable vitiligo, but must be chosen carefully based on the disease phase.

Alefacept showed some effectiveness for alopecia areata but needs more research.

Skin patterns are formed by simple reaction-diffusion mechanisms.

A 3-year-old girl with skin mast cell buildup and congenital baldness improved with treatment, suggesting a rare link between these conditions.

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

Hair greying is linked to reduced ATM protein in hair cells, which protects against stress and damage.

Androgens can both increase and decrease hair growth in different parts of the body.

Laser hair removal is the most requested cosmetic procedure and has become a scientifically-based treatment suitable for all skin types.

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

Ruby laser pulses best destroy hair follicles during the growth phase and effectiveness varies with laser intensity; melanin is key for targeting, and timing treatments can improve results.

Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.