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The hair follicle pathway significantly affects how easily water-loving chemicals pass through the skin.

Researchers developed a model that shows hair follicles increase skin absorption of caffeine by 20%.

The model better predicts how water-loving and fat-loving substances move through the skin by including tiny pores and hair follicle paths.

Microemulsions can improve skin delivery of finasteride.

Smaller curcumin nanocrystals penetrate skin better, but additives and particle size affect absorption and accumulation.

Dyeing hair can help target and destroy hair follicles selectively.

Hair absorbs molecules differently based on their size, charge, and love for water, and less at higher pH; this can help make better hair products.

African hair has the most lipids, while Caucasian hair is more hydrated and stronger.

Diffusion in artificial sebum is mainly influenced by molecular size and is much faster than in skin lipids.

PEI diffuses into hair at a constant rate, and urea speeds up this process.

Arsenic levels in rat hair reflect arsenic intake and accumulation in the body.

Scientists found a new gene in a bacterium that can modify an immunosuppressant drug, potentially helping to treat hair loss.

The combination of propylene glycol and Tween® 80 improves finasteride gel effectiveness.

Male mice have thicker skin, causing more light scattering than females.

The simulation showed that hypobaric pressure improves drug delivery through the skin, but stretching alone doesn't fully explain the increase.

MSF-VMDNet accurately segments skin cancer images better than existing methods.

Nanoparticles in sunscreen are generally safe as they stay on the skin's surface.

The method accurately measures finasteride in bulk and dosage forms.

Researchers developed a simple and accurate method to measure Minoxidil in tablets using UV light.

Finasteride diffuses spontaneously through SDS micelles, suggesting they can replace living cell membranes.

Mice lacking Insig proteins had hair growth problems due to cholesterol buildup, but this was fixed by the drug simvastatin.

The conclusion is that measuring how drugs partition into artificial sebum is important for predicting their delivery into hair and sebaceous follicles, and it provides better information than traditional methods.

The PCOSQ-50 is a valid and reliable questionnaire for measuring quality of life in Iranian women with PCOS.

Porcine hair follicles can effectively model human hair follicles for drug absorption.

Researchers found four key proteins that affect the development of a specific hair type in Yangtze River Delta white goats.

The Brigham Eyelash Tool for Alopecia (BELA) is a reliable way to measure eyelash loss in alopecia areata patients.

AI can accurately measure hair loss severity in alopecia areata.

Silicones in shampoos make hair smoother, easier to manage, and reduce friction.

The Brigham Eyebrow Tool for Alopecia is a simple and reliable way to measure eyebrow hair loss.

The document concludes that using a phototrichogram with a protractor and tapeline is a reliable and noninvasive way to measure hair loss.