Current Issue : April - June Volume : 2015 Issue Number : 2 Articles : 5 Articles
Tamarind seed polysaccharide (TSP) is a xyloglucan of vegetable origin,\nrecently proposed for the cosmetic and pharmaceutical market as a ââ?¬Å?greenââ?¬Â alternative to\nhyaluronic acid. In this study, TSP water dispersions, at different concentrations, were\ncharacterized by means of rheological measurements, both in continuous and oscillatory\nflow conditions. The results were compared with those of hyaluronic acid of two different\nmolecular weights. The results pointed out the close rheological behaviors between TSP\nand hyaluronic acid with comparable molecular weight. Afterwards, the structural features\nof binary and ternary polysaccharide associations prepared with TSP, hyaluronic acid (very\nhigh MW) and dehydropolysaccharide gum, a modified xanthan gum, with high stabilizing\nproperties, were investigated. The rheological properties were significantly affected by the\npolysaccharide ratios in the mixture, suggesting that the combination of TSP with other\npolymers can lead to a modulation of the texture and functional properties of cosmetics....
A promising strategy for maintaining a healthy and youthful phenotype during\naging is that of mild stress-induced beneficial hormesis. The basis of hormesis lies in the\nmolecular pathways of stress response, which are essential for the survival of a biological\nsystem by activation of maintenance and repair mechanisms in response to stress.\nModerate physical exercise is the best example of a hormetin that brings about a wide\nrange of health beneficial hormesis by first challenging the system. Similarly, other natural\nand synthetic hormetins can be incorporated in cosmeceutical formulations, and can help\nachieve benefits including maintenance of the skin structure and function. Several\npolyphenols, flavonoids and other components from spices, algae and other sources are\npotential hormetins that may act via hormesis. Stress response pathways that can be\nanalyzed for screening potential hormetins for use in cosmetics and cosmeceuticals include\nheat shock response, autophagy, DNA damage response, sirtuin response, inflammatory\nresponse and oxidative stress response....
Catalytically active titanium dioxide is conventionally used as a white pigment\nfor cosmetics, but undesirably induces a certain degree of decomposition of sebum on the\nskin on exposure to ultraviolet radiation in sunlight. In this work, titanium phosphates were\nprepared as a novel white pigment for cosmetics using titanium sulfate and phosphoric acid\nat various temperatures, with/without ultrasonic treatment. The chemical composition,\npowder properties, photo catalytic activity, color phase, moisture retention, and smoothness\nof the phosphates were evaluated. These titanium phosphates had less photo catalytic\nactivity than titanium dioxide, which should be beneficial for protecting sebum on the skin.\nSamples prepared with ultrasonic treatment had lower visible light absorption than those\nnot subjected to ultra sonication. The sample prepared at 40 �°C with ultrasonic treatment\nhad higher moisture retention capacity than those prepared under other conditions. Samples\nprepared at 40 �°C had lower slipping resistance than samples prepared at 7 �°C....
Allergic and photo-allergic contact dermatitis, and immunologic contact\nurticaria are potential immune-mediated adverse effects from cosmetics. Fragrance\ncomponents and preservatives are certainly the most frequently observed allergens;\nhowever, all ingredients must be considered when investigating for contact allergy....
Okara, soybean waste from tofu and soymilk production, was utilised as a natural antioxidant in soap formulation for stratum\ncorneum application. D-optimal mixture design was employed to investigate the influence of the main compositions of okara soap\ncontaining different fatty acid and oils (virgin coconut oilA(24ââ?¬â??28% w/w), olive oil B (15ââ?¬â??20% w/w), palm oilC(6ââ?¬â??10% w/w), castor\noil D (15ââ?¬â??20% w/w), cocoa butter E (6ââ?¬â??10% w/w), and okara F (2ââ?¬â??7% w/w)) by saponification process on the response hardness of\nthe soap. The experimental data were utilized to carry out analysis of variance (ANOVA) and to develop a polynomial regression\nmodel for okara soap hardness in terms of the six design factors considered in this study. Results revealed that the best mixture\nwas the formulation that included 26.537% A, 19.999% B, 9.998% C, 16.241% D, 7.633% E, and 7.000% F.The results proved that the\ndifference in the level of fatty acid and oils in the formulation significantly affects the hardness of soap. Depending on the desirable\nlevel of those six variables, creation of okara based soap with desirable properties better than those of commercial ones is possible....
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