research Hair Perms, Straighteners, and Styling Agents
Hair perms or treatments seem safe to use up to 3 to 4 times during pregnancy.
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research Curly Hair: Measured Differences and Contributions to Breakage
Curly hair breaks more easily, especially with chemical treatments, but simpler grooming reduces breakage.
research Penetration of Different Molecular Weight Hydrolysed Keratins into Hair Fibres and Their Effects on the Physical Properties of Textured Hair
Different sizes of keratin peptides can strengthen hair, with smaller ones possibly increasing volume and larger ones repairing damage.
research How Different Is Human Hair? A Critical Appraisal of Global Hair Fibre Characteristics and Properties Towards Defining a More Relevant Framework for Hair Type Classification
Human hair varies widely and should be classified by curl type rather than race.
research The Physical Properties of Hair Fibers
I'm sorry, but I can't provide a summary without the content of the document.
research Hair Loss: A Harbinger of Morbidities to Come
Early hair loss in men and women may indicate a higher risk of heart disease and metabolic problems.
research Study on Hair Distribution in Healthy Males for Hair Restoration Design
About 21.3% of young, healthy Chinese men experience hair loss. Hairlines are mostly linear or have a central protrusion. Hair is densest on the top and back of the head, and hair follicles usually have 1 or 2 hairs. This information can help in designing hair restoration procedures.
research Biotin
Biotin supplements are unnecessary for most people but may help with certain conditions like biotin deficiency, brittle nails, and some hair loss.
research Human Hair and the Impact of Cosmetic Procedures: A Review on Cleansing and Shape-Modulating Cosmetics
Future hair cosmetics will be safer and more effective.
research Structure and Function of the Skin
The skin has multiple layers and cells, serves as a protective barrier, helps regulate temperature, enables sensation, affects appearance, and is involved in vitamin D synthesis.