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The study found that long-term sun exposure does not significantly affect follicular plugs on the scalp, and the scalp's appearance is unique compared to other body parts.

Most treatments for hair loss in 1997 were not effective for most people, and maintaining hair growth was difficult.

PRP therapy may increase hair density in pattern hair loss without serious side effects, but more research is needed.

Intense pulsed light treatment effectively reduces underarm hair by making hair follicles smaller and extending their resting phase.

Synthetic hair implants can cause severe infections and are risky.

In 2002, hair restoration improved by using a different area for grafts and absorbable sutures, leading to less discomfort and better results.

Permanent hair dye may cause total hair loss.

Eight people with severe hair loss grew their hair back naturally.

The document concludes that hair loss is complex, affects many people, has limited treatments, and requires more research on its causes and psychological impact.

Experts suggest various surgical methods for hair restoration, including scalp reduction, transplantation using minigrafts, and establishing a permanent frontal hairline with follicular units. The drug finasteride may also be used alongside these procedures.

Hair restoration can enhance a facial plastic surgery practice with careful patient selection and detailed follow-up.

Genetics, stress, and health issues can cause early hair greying, which affects self-esteem, and there's no cure, only hair dye.

External treatments can change hair growth patterns in nude mice.

Permanent hair dyes use chemicals that react with hydrogen peroxide to create color.

Hair transplants are effective for male and female pattern baldness, have evolved in technique, and require careful planning for natural results and managing complications.

The document recommends careful planning and techniques for successful punch hair grafting in hair restoration.

Hair follicle stem cells and mitochondria are key for hair growth, and targeting their activity could lead to new hair loss treatments.

Electric Follicle Stimulation may promote hair growth and density with no known side effects.

Pig oil was found to significantly promote hair growth in rats, more effectively than Minoxidil.

Pregnancy can cause more body and scalp hair growth and make nails brittle, but these changes often revert after giving birth.

Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.

The conclusion is that certain cell interactions and signals are crucial for hair growth and regeneration.

Growing human skin cells in a 3D environment can stimulate new hair growth.

PGD2 stops hair growth and is higher in bald men with AGA.

Researchers found 19 genes important for root hair growth in a plant called Arabidopsis.

Regenerated fully functional hair follicles using stem cells, with potential for hair regrowth therapy.

AXR3 and SHY2 genes control the growth and timing of root hair development in plants.

Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.

Some drugs can cause hair loss or increase hair growth, but these effects are usually reversible when the drug is stopped.

The Sonic hedgehog pathway is crucial for new hair growth during mouse skin healing.