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Forensic hair analysis for drugs is now more reliable and accurate.

North American ginseng extract helped regrow hair in balding mice.

Hair follicle culture helps study hair growth but has limitations in modeling the full hair cycle.

The wigs made from human hair and polypropylene were mostly well-tolerated and durable in rabbits, suggesting they could be a new option for people with extensive hair loss.

Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.

Mf-rich hair degrades more than Ma-rich hair, especially with Proteinase K.

Surgical repigmentation can permanently restore color to white hair in vitiligo patients.

The recipient site can affect the growth and survival of transplanted hair but not its thickness.

Many substances, including chemicals and metals, can cause skin reactions; careful handling and identification of allergens are crucial to prevent dermatitis.

Various techniques and tools for hair restoration were presented in 1998, including a mathematical model for donor area, use of lasers in surgery, methods for controlling grafted hair direction, and ways to increase graft yield. Satisfaction rates were around 39%, and studies showed trauma and dehydration can damage hair follicles.

Using 448-kHz Capacitive-Resistive Electrothermal Therapy can help increase hair density and prevent hair loss in women.

Finasteride might affect memory by impacting cholinergic system.

Artificial hair fibers help treat scalp scars with few complications and a 20% yearly fiber fall rate.

Ginseng, especially red ginseng, helps hair grow by increasing blood flow and energy to hair roots.

Resveratrol helps prevent finasteride-induced damage in male rats, improving reproductive function.

Niosomes improve minoxidil skin penetration for hair loss treatment.

Hair mineral content can help diagnose certain common illnesses.

Parkinson's disease is linked to skin disorders and skin cells help in studying the disease.

The method effectively measures long-term stress levels using hair samples.

Smart microneedles can deliver drugs painlessly and accurately for diseases like diabetes and tumors.

Using adipose derived stem cells and growth factors in hair transplants may improve healing and hair growth.

Modified wheat protein in shampoo repairs and smooths damaged hair effectively.

The hole technique is faster and effective for hair transplant site creation.

Removing certain brain receptors in mice worsens seizure severity and response to treatment during hormone withdrawal.

Magnesium microneedle patches can safely improve under-eye wrinkles when used every other night for 12 weeks.

Exposure to certain metals may worsen attention-related behaviors in adolescents, with stronger effects in females.

Keratin 15 helps maintain tissue integrity and is reduced in activated keratinocytes.

Hair cortisol analysis effectively measures long-term stress.

Tail switch hair is best for measuring cortisol in Holstein cows, with white hair and multiparous cows showing higher levels.

The technology can help diagnose and subtype autoimmune diseases by identifying specific autoantibodies.