research Evaluation of the predictive capacity of DNA variants associated with straight hair in Europeans
Certain DNA variants can predict straight hair in Europeans but are not highly specific.
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60-90 / 1000+ results research Differences between ultrastructure and protein composition in straight hair fibres
Lustre mutant sheep have normal hair structure and proteins but differ in felting properties.
research Proteomic Analysis of Crimped and Straight Wool in Chinese Tan Sheep
Crimped wool has proteins linked to crimp formation, while straight wool has proteins linked to fiber fineness, which can improve wool quality and value.
research Common Variants in the Trichohyalin Gene Are Associated with Straight Hair in Europeans
Common variants in the Trichohyalin gene are linked to straight hair in Europeans.
research Improved two‐dimensional electrophoretic mapping of Japanese human hair proteins; application to curved and straight Japanese human hairs; and protein identification by MALDI MS and MS/MS quadrupole time‐of‐flight mass spectrometry
The study found that minor protein differences between curved and straight Japanese hair are unlikely to significantly affect hair structure.
research Human hair form. Morphology revealed by light and scanning electron microscopy and computer aided three-dimensional reconstruction.
Hair follicle shape determines hair type: curly, straight, or in-between.
research Age, Health and Attractiveness Perception of Virtual (Rendered) Human Hair
Hair style affects perceptions of age, health, and attractiveness more than hair color does.
research A New Universal Follicular Unit Excision Classification System for Hair Transplantation Difficulty and Patient Outcome
The new SFS Scale predicts hair transplant difficulty using hair and skin types, with thick skin and coily hair being hardest to work with.
research Minority hair tax: pricing bias in haircare products
Coily/curly hair products cost more than straight hair products, highlighting a need for fair pricing.
research Reimagining Hair Science: A New Approach to Classify Curly Hair Phenotypes via New Quantitative Geometric and Structural Mechanical Parameters
New methods can better classify curly hair types and lead to improved hair care products.
research Human scalp hair: geometry, biochemistry, growth parameters and mechanical characteristics
A 6-group geometric classification of human scalp hair is more reliable and objective for testing than an 8-group system.
research Descriptive Study of Hairline Patterns amongst Etche People of Rivers State, Nigeria
Straight-lined hairlines are most common among Etche people.
research Asian Hair: A Review of Structures, Properties, and Distinctive Disorders
Asian hair is generally straight and thick, with unique disorders and properties, and more research is needed to understand it fully.
research Understanding Curly Hair Mechanics: Fiber Strength
Curly hair is mechanically different from straight hair and may need new testing methods.
research Linear alopecia areata
Alopecia areata can sometimes appear as a straight line of hair loss instead of round patches.
research A New Permanent Straightening Process of Human Hair Using the Water Set
The new hair straightening method keeps hair straight permanently by using specific creams and heat.
research Investigating the internal structure of sheep wool hair fibre using new microscopic techniques
Curly wool has more orthocortex than straight wool.
research RETRACTED: Is photoshop with Qualitative Image Analysis a valid technique for measuring hair morphology? A test using wires of known dimensions
QIA-64 software can measure straight wire lengths accurately but needs improvement for curved wires and width measurements.
research Alteration in Hair Texture Following Regrowth in Alopecia Areata
Alopecia areata caused a boy's hair to regrow straight instead of curly, but the exact reason is unknown.
research Perceptions of female age, health and attractiveness vary with systematic hair manipulations
Shiny, straight hair is seen as more youthful, healthy, and attractive.
research Single-Cell Transcriptomics Reveals the Molecular Anatomy of Sheep Hair Follicle Heterogeneity and Wool Curvature
The research identified genes that explain why some sheep have curly wool and others have straight wool.
research Transcriptome Profile at Different Physiological Stages Reveals Potential Mode for Curly Fleece in Chinese Tan Sheep
Genetic differences between young and old Tan sheep explain why their fleece changes from curly to straight as they age.
research "Curly" Wood and Tiger Tails
Tiger tail bands in hair are caused by wavy hair fibers with melanin, unlike straight fibers in normal hair.
research Hair Characteristics of East and Southeast Asians
East and Southeast Asians typically have less dense but thicker, straight black hair.
research Cortical cell types and intermediate filament arrangements correlate with fiber curvature in Japanese human hair
Hair curvature in Japanese people is linked to specific cell types and filament arrangements in the hair cortex.
research A mechanical model of overnight hair curling
Longer time setting curls overnight leads to better curl retention.
research Management of definitive hair alopecia in Asians
Asian hair's unique features make hair loss management and surgery more challenging.
research Human hair keratin network and curvature
Curly hair shape is due to uneven growth patterns in the hair follicle.
research Wool fiber curvature is correlated with abundance of K38 and specific keratin‐associated proteins
Wool fiber curliness is linked to the presence of certain proteins and K38.
research Curl Cream Development – A Pilot Study
Polisorbate 20 is not suitable for curl creams due to instability.