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Synthetic hair implants can cause severe scalp problems and removing them improves conditions; natural hair transplants are safer and more effective.

Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.

Curly hair breaks more easily, especially with chemical treatments, but simpler grooming reduces breakage.

Artificial hair implantation is generally safe and can restore hair when other treatments fail, but some patients may experience side effects.

Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.

Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.

Future hair cosmetics will be safer and more effective.

Curly hair is mechanically different from straight hair and may need new testing methods.

In 2011, hair restoration was a specialized field in plastic surgery, using techniques like "Ultrarefined follicular unit hair transplantation" to minimize scarring and promote hair growth, with future treatments like stem cell therapy and hair cloning still being tested.

Children's hair loss can be caused by various factors and should be treated with appropriate, age-specific methods and psychological support.

Enzyme replacement therapy improved multiple symptoms of homocystinuria in mice.

Doctors should suggest hair replacement based on personal needs and stress scalp cleanliness to avoid skin problems.

The document suggests using hairpieces, wigs, and safe cosmetic techniques to hide hair loss from alopecia areata.

The HairCheck® device is effective for measuring hair loss and growth in people with alopecia.

Alkaline hair relaxers damage hair, but cationic and non-ionic polymers can help reduce this damage.

The model predicts hair breakage based on key hair properties and helps product developers.

A new method helps understand hair shine and various products improve hair care.

Human hair structure varies by ethnicity, and certain treatments can improve hair condition and appearance.

Twisting hair weakens it, but strength can be recovered at low twist levels.

DVI provides detailed 3D imaging of hair and shows how various products protect and enhance hair.

Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.

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Shampoo B, which uses water-soluble silicone, is better at detangling hair in wet conditions due to its two-layer conditioning film.

Some mutant mice have hair with abnormal cross-linking, mainly in the cuticle, not affecting other hair parts.

Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.

The review concludes that accurate diagnosis of different types of hair loss requires proper biopsy techniques and understanding the hair growth cycle and underlying causes.

Two mouse mutants have defective hair cuticle cross-linking.

Mixed-race individuals have hair with varied shapes and more root damage.

Coconut oil makes hair stronger and more flexible than mineral oil.