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Scientists have improved 3D models of human skin for research and medical uses, but still face challenges in perfectly replicating real skin.

A new hand-held light therapy device was found to be safe and effective for treating mild-to-moderate acne.

Low-dose oral minoxidil may help treat hair loss but is not FDA-approved and can cause side effects like unwanted hair growth and heart issues.

Alopecia areata needs more recognition and better treatment access in Latin America to improve patient care and outcomes.

Bleaching damages hair by reducing the quality of keratin and keratin-associated proteins.

High doses of Lepidium sativum seed extract are toxic and should be used with caution.

SV40 T antigen in hair follicles causes abnormal hair and health issues in mice.

Inactive hair follicle stem cells help prevent skin cancer.

Mice lacking steroid 5α-reductase 2 show less aggression and better impulse control.

Proteins like aPKC and PDGF-AA, substances like adenosine and ATP, and adipose-derived stem cells all play important roles in hair growth and health, and could potentially be used to treat hair loss and skin conditions.

The document suggests that activating autophagy might help with regeneration by removing old and damaged cells.

Skin stem cells maintain and repair the outer layer of skin, with some types being essential for healing wounds.

Brg1 is crucial for hair growth and skin repair by maintaining stem cells and promoting regeneration.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Activin A and follistatin control when ear hair cells form in mice.

Certain signals are important for reducing specific chemical markers on hair follicle stem cells during rest periods, which is necessary for healthy hair growth.

Different types of stem cells and their environments are key to skin repair and maintenance.

We need more research to better understand human hair follicle stem cells for improved treatments for hair loss and skin cancer.

New methods have greatly improved our understanding of stem cell behavior and roles in the body.

Adult stem cells from rat whisker follicles can regenerate hair follicles and sebaceous glands.

Liposomal systems show promise for delivering drugs through the skin but face challenges like high costs and stability issues.

Stem cell self-renewal is complex and needs more research for full understanding.

Wnt and Notch signaling help wound healing by promoting cell growth and regulating cell differentiation.

Hair in mammals likely evolved from glandular structures, not scales.

Found microRNA differences in hair cells, suggesting potential treatment targets for hair loss.

Non-surgical procedures can help reduce wrinkles and stimulate skin repair by understanding skin aging at the molecular level.

Activin A promotes ear hair cell development, while follistatin delays it.

CRISPR/Cas9 gene-editing shows promise for livestock breeding but faces challenges like low efficiency and off-target effects.

Scientists successfully edited a goat's genes to grow more and longer cashmere hair.

Root hairs are key for developing cereals that can fertilize themselves with nitrogen.