Hair cosmetics: An overview

Dias, Maria Fernanda Reis Gavazzoni

doi:10.4103/0974-7753.153450

Cited by 209 publications

(173 citation statements)

References 55 publications

(153 reference statements)

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“…People with curly and wavy hairs are more likely to have oily scalp but less oil on the hair fiber surface. Sebaceous glands of African descendants are frequently less active when compared with the Caucasian ones [79]. A study [57] revealed that, in the composition of African hair fiber, the lipid content in terms of cholesterol-ester, free-fatty-acids and cholesterol-sulfate is higher than in the other two ethnic hair types.…”

Section: Differences On Ethnic Hair Fiber Characteristics and Propertiesmentioning

confidence: 99%

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Human Hair and the Impact of Cosmetic Procedures: A Review on Cleansing and Shape-Modulating Cosmetics

et al. 2016

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Abstract:Hair can be strategically divided into two distinct parts: the hair follicle, deeply buried in the skin, and the visible hair fiber. The study of the hair follicle is mainly addressed by biological sciences while the hair fiber is mainly studied from a physicochemical perspective by cosmetic sciences. This paper reviews the key topics in hair follicle biology and hair fiber biochemistry, in particular the ones associated with the genetically determined cosmetic attributes: hair texture and shape. The traditional and widespread hair care procedures that transiently or permanently affect these hair fiber features are then described in detail. When hair is often exposed to some particularly aggressive cosmetic treatments, hair fibers become damaged. The future of hair cosmetics, which are continuously evolving based on ongoing research, will be the development of more efficient and safer procedures according to consumers' needs and concerns.

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Section: Differences On Ethnic Hair Fiber Characteristics and Propertiesmentioning

confidence: 99%

“…The surfactants can be classified into four groups according to the electric charge of the polar extremity: anionic, cationic, amphoteric and nonionic [79,80]. Modern shampoos contain a mixture of surfactants to provide different cleaning levels according to hair type [80].…”

Section: Shampoomentioning

confidence: 99%

Human Hair and the Impact of Cosmetic Procedures: A Review on Cleansing and Shape-Modulating Cosmetics

et al. 2016

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“…For most of the BHFs, the maximum fiber length attainable is 60 mm which in turn would limit the choices of fiber orientation in developing BHFRPCs. In terms of chemical modification of BHFs, the hydrophobic epithelial cuticle may be disrupted and expose the hydrophilic cortex of the BHFs and this is likely to result in a swollen fiber [48]. Swollen fibers impede mechanical properties improvement in NFRPCs [49].…”

Section: Tensile Propertiesmentioning

confidence: 99%

Re-Evaluation of Bovine Fiber Biomass as Exploitable Keratinous Bio-Resource for Biomedical and Industrial Applications

Oladele¹,

Olajide²,

Daramola³

et al. 2017

JMMCE

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In claim of developing ecologically-friendly and low cost polymeric materials, some polymer scientists and engineers have focused on improving the properties of polymer composites with natural fibers. One typical example of these natural fibers currently used as reinforcements in low load-bearing polymer composites is bovine fiber which is traditionally a waste from slaughterhouse. However, nature has designed natural fibers with anisotropic properties which may not augur well for the development of polymer composites with guaranteed field-proven reliability. Nonetheless, unlike vegetal fibers, most animal fibers can be alternatively exploited for keratinous applications. In the present study, the tensile properties, crude protein contents and variations in elemental distribution of hair fibers obtained from three breeds of bovine found in Nigeria were investigated. The hair fibers were characterized by ultimate testing machine, proximate analysis and scanning electron microscopy with energy dispersive X-ray spectroscopy. Superlative Young's modulus and tensile strength among the fibers were found to be 0.98989 GPa and 0.56158 MPa, respectively. The determined crude protein contents of the fibers ranged between 35% and 40%. Also, single hair fibers from each bovine breed showed significant variations in elemental distribution along their longitudinal sections which translates to anisotropic chemical and mechanical properties. However, the mean spectral values of the principal elements that constitute amino acids in the fibers are in the same range with that of human hair fibers with a successful record of keratinous applications.

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“…The inside layer (Medulla) is present only in thick hair. Its function has not been clearly defined [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Consumers make use of different hair care products to change the physical appearance of hair, such as shampoos, conditioners, styling products, hair dye and hair straighteners [2].…”

Section: Introductionmentioning

confidence: 99%

In Vitro Methodologies to Evaluate the Effects of Hair Care Products on Hair Fiber

2017

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Consumers use different hair care products to change the physical appearance of their hair, such as shampoos, conditioners, hair dye and hair straighteners. They expect cosmetics products to be available in the market to meet their needs in a broad and effective manner. Evaluating efficacy of hair care products in vitro involves the use of highly accurate equipment. This review aims to discuss in vitro methodologies used to evaluate the effects of hair care products on hair fiber, which can be assessed by various methods, such as Scanning Electron Microscopy, Transmission Electron Microscopy, Atomic Force Microscopy, Optical Coherence Tomography, Infrared Spectroscopy, Raman Spectroscopy, Protein Loss, Electrophoresis, color and brightness, thermal analysis and measuring mechanical resistance to combing and elasticity. The methodology used to test hair fibers must be selected according to the property being evaluated, such as sensory characteristics, determination of brightness, resistance to rupture, elasticity and integrity of hair strain and cortex, among others. If equipment is appropriate and accurate, reproducibility and ease of employment of the analytical methodology will be possible. Normally, the data set must be discussed in order to obtain conclusive answers to the test.

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Hair cosmetics: An overview

Cited by 209 publications

References 55 publications

Human Hair and the Impact of Cosmetic Procedures: A Review on Cleansing and Shape-Modulating Cosmetics

Human Hair and the Impact of Cosmetic Procedures: A Review on Cleansing and Shape-Modulating Cosmetics

Re-Evaluation of Bovine Fiber Biomass as Exploitable Keratinous Bio-Resource for Biomedical and Industrial Applications

In Vitro Methodologies to Evaluate the Effects of Hair Care Products on Hair Fiber

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