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Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.

Hair sunscreens are important for maintaining hair's cosmetic value.

A new mutation in the hairless gene causes hair loss and skin wrinkling in mice.

Changes in the HR gene have influenced hair growth and may lead to hair loss conditions in humans.

Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.

Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.

Skin grafts on mice can cause an immune response leading to hair loss, useful for studying human hair loss conditions.

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

Larger spheroids improve hair growth, but size doesn't guarantee thicker hair.

We don't fully understand how sunlight damages different types of hair.

PHBV nanofiber matrices help wounds heal faster when used with hair follicle cells.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.

The article concludes that developing in vitro models for human hair structures is important for research and reducing animal testing, but there are challenges like obtaining suitable samples and the models' limitations.

Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.

Low-level laser therapy seems to help dogs with noninflammatory alopecia grow hair back.

Hoxc13 is linked to seasonal hair growth in Cashmere goats and is affected by melatonin.

Older people's hair becomes less shiny because it gets more uneven and curved.

Hair loss from cancer treatment is very distressing for women due to its impact on self-image and social stigma.

Scientists have created a method to deliver specific cells that can regenerate hair follicles, potentially offering a new treatment for hair loss.

Animal models are crucial for learning about hair loss and finding treatments.

Overexpressing Tβ4 in goats' hair follicles increases cashmere production and hair follicle growth.

Understanding hair biology is key to developing better treatments for hair and scalp issues.

Transplanted skin on hooded rats often grows white hair instead of black.

Higher protein diets with DL-methionine improve mink hair growth and fur quality.

Adding fetal calf serum helps Merkel cells survive and change shape.

Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.

Chesapeake Bay retrievers' hair loss is likely a breed-specific, hereditary condition linked to abnormal steroid levels and distinct skin changes.

Plasma is better than Ringer's lactate for hair graft survival and growth after transplantation.

Chemical hair straightening improves smoothness and shine but may cause side effects, suggesting a need for safer methods.