Brazilian oils and butters: The effect of different fatty acid chain composition on human hair physiochemical properties

Fregonesi, A.; Scanavez, Carla; Santos, Leandra P.; Oliveira, Aparecida de Fátima Madella de; Roesler, Roberta; Escudeiro, Cassiano Carlos; Moncayo, P.; Sanctis, D. De; Gesztesi, J. L.

doi:10.1111/j.1468-2494.2010.00534_16.x

Cited by 11 publications

(13 citation statements)

References 2 publications

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“…Os óleos vegetais são reconhecidos por conferir uma ação preventiva contra os danos da camada mais exterior do revestimento de fibra capilar, denominado cutícula. Os óleos podem lubrificar a haste do cabelo reduzindo danos abrasivos, preenchendo fendas ou cavidades encontradas em cutículas danificadas, e aumentar a hidrofobicidade da proteína, reduzindo o desgaste da fibra capilar causado pela entrada de água para dentro da fibra após repetidos ciclos de lavagem (9,10). A resistência à tração é uma propriedade mecânica atribuída ao córtex e vários produtos capilares apresentam como apelo de marketing os claims: anti-quebra, aumento da força, entre outros (9-12).…”

Section: Resultsunclassified

“…Vegetable oils are recognized to have preventive action against damage of the outermost layer of the hair fiber coating cortex, called the cuticle. The oils could lubricate the hair shaft, reducing abrasive damage, fill cracks or cavities found in damaged cuticles, and increase protein hydrophobicity, reducing wear on the hair fiber caused by ingress of water into the fiber after repeated washing cycles (9,10).…”

Section: Resultsmentioning

confidence: 99%

“…The tensile strength is obtained by mechanical test patterns that generate tension curves under constant extension rate (9)(10)(11)(12).…”

Section: Resultsmentioning

confidence: 99%

“…Oils with a high affinity for hair proteins, low molecular weight and straight chain(s) are able to penetrate into the hair fiber, while the presence of double bonds prevents penetration. According to Rele & Mohile (13), coconut oil (Cocos nucifera L.) is able to penetrate into the hair fiber (9,13). The babassu oil is composed predominantly of lauric acid.…”

Section: Resultsmentioning

confidence: 99%

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Influence of Brazilian vegetable oils on mechanical resistence of hair fiber

Velasco

Balogh

Kagiyama

et al. 2015

BBR

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Biopharmaceutical Sciences│Ciências BiofarmacêuticasBiomed Biopharm Res. , 2015; (12) 1: , 99-106 99 Biomedical and Biopharmaceutical Research J o r n a l d e I n v e s t i g a ç ã o B i o m é d i c a e B i o f a r m a c ê u t i c a Influence of Brazilian vegetable oils on mechanical resistence of hair fiber Influência de óleos vegetais brasileiros na resistência mecânica da fibra capilar AbstractAssociating the global trend of incorporating active compounds and plants in cosmetic formulations and the vast Brazilian biodiversity, the present work aimed to study the incorporation of Brazilian vegetable oils in hair conditioner formulations, evaluating the mechanical resistance of hair fibers. The following oils were incorporated into base formulations at 5.0 % (w/w): babassu, buriti, andiroba and pequi. The formulations were applied to samples of Caucasian hair, followed by several washing steps, then the evaluation of mechanical strength. It was found that there was no statistically significant difference in mechanical resistance between samples treated with oils and the control between the first and seventh wash cycles. This fact can be explained by the possible low penetration of oils into the cortex, a region responsible for the mechanical properties of the hair fiber, since the grease composition disfavors its diffusion. The common effects of vegetable oils on the cuticle, such as filling in cracks or cavities, lubrication, and increased protein hydrophobicity cannot be excluded. The oils tested in this work were not able to raise or protect hair tresses. However, additional studies are required in order to establish the effects of oil treatments, particularly in damaged hair. Keywords: hair, emulsion, vegetable oils, mechanical properties ResumoAssociando a tendência global de incorporar ingredientes ativos derivados de plantas em formulações cosméticas e da enorme biodiversidade brasileira, o presente trabalho teve como objetivo estudar a incorporação de óleos vegetais brasileiros em condicionadores capilares, avaliando-se seu efeito na resistência mecânica da fibra do cabelo. Os seguintes óleos foram incorporados a uma formulação base a 5,0 % (p/p): babaçu, buriti, andiroba e pequi. As formulações foram aplicadas a mechas de cabelo Caucasiano, seguido de um procedimento de lavagem, sendo resistência mecânica posteriormente avaliada. Verificou-se que não havia nenhuma diferença estatisticamente significativa na resistência mecânica entre as mechas tratadas com os diferentes óleos e o controle entre o primeiro e o sétimo ciclos de lavagem. Este fato pode ser explicado pela baixa penetração dos óleos no córtex, uma região responsável pelas propriedades mecânicas da fibra capilar, uma vez que sua composição desfavorece a difusão. Os efeitos comuns de óleos vegetais na cutícula, como preencher fendas ou cavidades, lubrificação e aumentar a hidrofobicidade não pode ser excluída. Portanto, os óleos testados neste trabalho não foram capazes de aumentar ou proteger as mechas de cabelo nas condições experimenta...

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Section: Resultsunclassified

Section: Resultsmentioning

confidence: 99%

“…The tensile strength is obtained by mechanical test patterns that generate tension curves under constant extension rate (9)(10)(11)(12).…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Influence of Brazilian vegetable oils on mechanical resistence of hair fiber

Velasco

Balogh

Kagiyama

et al. 2015

BBR

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“…In cosmetology, nonpolar lipids such as cholesterol (CHOL), cholesterol esters (CE), wax esters (WE), triglyceride (TG) and free fatty acids (FFA) have attracted attention with regard to maintaining hair health, because detergents in shampoo products remove free lipids including nonpolar lipids and ceramides. In particular, triglyceride‐containing lipids are commonly believed to contribute to hair gloss and lubrication …”

Section: Introductionmentioning

confidence: 99%

The effect of a herbal paste and oil extract on the lipid content of canine hair fibres

Momota

Shimada

Kadoya

et al. 2017

Veterinary Dermatology

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Background Application of herbal paste and oil to a dog's coat and body before rinsing (often combining with shampooing) is a cosmetic therapy available in Japan. It is highly appreciated by users, who claim that the treatment makes the coat shinier, improves volume and eliminates tangles. However, there has been no scientific evaluation of such treatments. Hypothesis/Objectives Improvement of hair condition is derived from oils such as sebum and conditioning oils because chemicals are not used. Therefore, we examined nonpolar lipids (the primary lipids in dog hair) and the botanical oils used in this therapy. Animals Hair samples were obtained from six beagle dogs. Methods Groups were based on different combinations of the following processes: rinsing, shampooing, herbal therapy and herbal therapy with oil extract. Analysis of lipids was performed by high performance thin layer chromatography. Results The processes of shampooing and herbal therapy were associated with an equivalent reduction in cholesterol ester and triglyceride (TG). However, hair treated by herbal therapy combined with oil extract had an almost three‐fold higher TG content, even after shampooing. Conclusions and clinical importance This study demonstrated that the herbal therapy was able to coat hair samples with TG that was not removed with rinsing. Further investigation is required to evaluate the possible benefits of the application of botanical products containing lipids, such as TG, on hair coat quality in dogs.

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Design and Synthesis of Waterborne Polyurethanes

Kang¹,

Ji²,

Tseng³

et al. 2018

Advanced Materials

160

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Waterborne polyurethanes (WBPUs) have attracted increasing attention in a wide range of industrial applications because of their versatile properties as well as ecofriendly nature. Although extensive research has been carried out on WBPU synthesis, the roles of some of the key synthesis components remain unclear. In this study, through systematically controlling and fine tuning the precursor compositions and reaction conditions, over 300 WBPUs are synthesized. This research enables the roles of several key components that govern WBPU physicochemical properties and ultimately the potential WBPU applications to be identified. Using hair styling as an example, it is demonstrated that only the WBPUs with an optimal range of properties (e.g., Young's modulus >150 MPa, elongation at break: 15-300%, moisture uptake <10%) can achieve strong styling performance. To further improve the natural-feel sensory benefits in the final styling products, a number of fatty acids with different carbon chain lengths or unsaturation levels are incorporated into WBPUs. Among the ten fatty acids studied, linoleic acid is identified as the most preferred additive. Both in vitro and in vivo testing demonstrate that WBPUs with optimal properties are promising materials for developing strong, long-lasting styling products with natural feel.

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Brazilian oils and butters: The effect of different fatty acid chain composition on human hair physiochemical properties

Cited by 11 publications

References 2 publications

Influence of Brazilian vegetable oils on mechanical resistence of hair fiber

Influence of Brazilian vegetable oils on mechanical resistence of hair fiber

The effect of a herbal paste and oil extract on the lipid content of canine hair fibres

Design and Synthesis of Waterborne Polyurethanes

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