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Dye enters hair at the edges of cuticle cells and penetrates more from water than alcohol-based solutions.

Chemical treatments change hair surface properties, making it more hydrophilic and able to bind conditioners.

Keratin films from human hair can potentially replace human nail plates for drug testing.

Oxidation changes human hair by breaking down fats and forming new acidic groups, affecting how it interacts with conditioners and cosmetics.

Relaxer treatments damage African–American hair, with commercial products causing more harm than lab-made solutions.

Probe detects finasteride with high selectivity and low detection limit.

Minoxidil in HA-PLGA nanoparticles effectively treats alopecia through skin delivery.

Tiny particles carrying roxithromycin can effectively target and deliver the drug to hair follicles without irritation.

Scanning electron microscopy revealed four distinct hair root shapes in alopecia areata, suggesting a less invasive diagnostic method.

Hyaluronate fragments can help reverse skin thinning by working with the CD44 receptor.

Hair can't be reliably repaired once damaged; prevention and proper product use are key to maintaining hair health.

Massage increases how deep both rigid and flexible liposomes can go into skin, with flexible ones going deeper, and covering the skin (occlusion) helps rigid ones more.

Using CDK inhibitors on rats showed a reduction in chemotherapy-caused hair loss, but later experiments could not repeat these results.

A protein called desmoglein 3 is important for keeping hair follicle stem cells inactive and helps in their regeneration.

A new version of minoxidil, a hair loss treatment, was made using nanotechnology. This version, called minoxidil cubosomes, works better and causes fewer skin reactions than the old version. It also penetrates and stays in the skin better, promoting hair regrowth. It's safe and could be a good alternative to current treatments.

New biomaterial treatments for baldness show promise, with options depending on patient needs.

3D-printed mesoporous scaffolds show promise for personalized drug delivery with controlled release.

Scientists found ways to identify and collect skin stem cells, which vary by skin area and are delicate.

PKC ε increases hair follicle stem cell turnover and may raise skin cancer risk.

Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.

Disrupting Smad4 in mouse skin causes early hair follicle stem cell activity that leads to their eventual depletion.

Researchers found a safe and effective way to pick genetically modified skin cells with high growth potential using CD24.

Scientists turned rat thymus cells into stem cells that can help repair skin and hair.

Adult stem cells with Tp63 can form hair and skin cells when placed in new skin, showing they have hidden abilities for skin repair.

New hair follicle-targeting treatments show promise for hair disorders but need more research on safety and effectiveness.

Nanoethosomes can improve the skin penetration of Lidocaine for topical use.

CD98hc's role in skin health decreases with age.

Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.

Nanotechnology shows promise for better chronic wound healing but needs more research.

Chemical treatments and light exposure damage hair proteins.