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L-cysteine slows down the breaking of bonds in hair due to electrostatic interactions.

The study found that thioglycolic acid breaks down hair bonds more consistently than l-cysteine, which is less damaging to hair.

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

Chemical treatments and light exposure damage hair proteins.

UV radiation significantly damages hair, especially with humidity, making it more vulnerable to further damage.

Hair with more melanin resists weather damage better.

The DWLSM provides detailed imaging of hair shafts and follicles with high accuracy.

Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.

The system helps monitor hair properties using RGB video microscopy.

The method accurately measures finasteride in bulk and dosage forms.

Infrared techniques reveal glycogen, unsaturated lipids, and calcium compounds in hair.

Permanent waving weakens hair by altering its protein structure.

Hair quality is genetically determined and linked to its composition and strength.

The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.

Reflectance spectroscopy can noninvasively track hair growth stages by measuring skin reflectance and melanin changes.

A new method using near-infrared light can effectively detect and analyze internal hair damage.

A reliable, cost-effective method was developed for accurately measuring finasteride in medicines.

Notch1 helps skin heal by attracting specific immune cells.

The method measures finasteride accurately and cheaply using UV light.

New, simple, and cost-effective methods can accurately measure Minoxidil in medicines.

A reliable UV method was created to measure finasteride accurately.

A new laser-based microscope can clearly image biological structures without labels.

A quick method to measure minoxidil using a light-based titration technique was developed.

Cosmetic residues on individual hairs can be identified and differentiated using ATR FT-IR microspectroscopy.

Polarized Raman spectra can reveal changes in hair keratin's protein structures.

New method measures minoxidil concentration faster, more accurately, and automatically.