Current Issue : July - September Volume : 2017 Issue Number : 3 Articles : 5 Articles
Sunscreens are functional, utilitarian, cosmetic products. The criteria of purchase are\ndifferent from those for skin care and make-up. Companies are trying to add glamour and value to\nbasic sunscreens by incorporating ââ?¬Å?activeââ?¬Â ingredients (other than UV filters) into these formulas\nand by communicating about the additional benefits, be they anti-aging, moisturizing, firming,\nanti-wrinkle, etc. While some of these ideas of additional ingredients make sense as supplementary\nskin protection, some others do not afford much benefit in view of the infrequent application and\nshort period of usage. The present article reviews some of these ideas and presents a few active\ningredients that might be of value in such a context, even if substantiation of such additional claims\nin sunscreens is often lacking....
Plant-derived substances such as curcumin and trans-resveratrol, both of which\nhave anti-inflammatory properties, may have a beneficial effect on human\nskin. The present study analyzed the effects of topical formulations containing\ncurcumin or trans-resveratrol on the recovery and rejuvenation of skin after\nchemical peeling. The study was performed on rats, randomly divided into\nseven groups of six animals each. Superficial peeling was performed using a\n50% glycolic acid gel, which was applied to the dorsal region of each animal.\nRats were then treated with the experimental formulations for 15 days. On the\nsixteenth day, skin samples were taken and mounted on slides for histological\nanalysis. Statistical analysis showed that the formulation containing transresveratrol\nled to increased dermal and epidermal thickness, while the formulation\ncontaining curcumin had no effects on epidermal thickness. The increased\nepidermal thickness may reflect greater skin vitality, although this was\nnot directly evaluated. The increase in dermal thickness may be attributed to\ngreater collagen production, which may increase skin firmness and elasticity,\nand lead to skin rejuvenation as well as wrinkle reduction. Formulations containing\ncurcumin or trans-resveratrol may have potential for the topical treatment\nafter peeling and of sensitive skin, in addition to being used for their antiaging\nproperties....
In this study, we assessed the efficacy and safety of four skin care products indicated\nfor skin hydration (Aqua Therapy and Perfecta), skin aging (Unica\nResurfacing Therapy) and sensitive skin (Comfort Therapy), in four groups\nof 7 volunteers with different skin types. These products belong to four skin\ncare ranges (Aqua, Perfecta, Unica and Comfort) and are formulated with\na specific combination of active compounds (Dermo28). Evaluation of sebum\nsecretion, hydration and pH of the skin (all groups), wrinkle severity (Unica\nResurfacing Therapy) and erythema (Comfort Therapy) was performed at\nbaseline and after 4 weeks of treatment. A significant increase in hydration\nwas recorded in subjects with dry skin receiving Aqua Therapy for facial hydration\nand Perfecta for body hydration, respectively (p < 0.001 for both). A\nsignificant decrease in the modified Fitzpatrick wrinkle scale (p = 0.006) and\nan increase in sebum secretion and hydration (p = 0.013 and p < 0.001, respectively)\nwere observed in the Unica Resurfacing Therapy group. In subjects\nwith sensitive skin (Comfort Therapy), a decrease in erythema (p =\n0.012), an increase in sebum secretion (p = 0.001) and hydration (p < 0.001),\nand a reduction in pH (p = 0.005) were detected at the end of treatment. Only\none patient reported a minor adverse event. This specific combination of active\ningredients was clinically effective and safe, and contributed to skin surface\nhydrolipidic film regeneration, improvement of wrinkle depth and reduction\nof redness....
Consumers use different hair care products to change the physical appearance of their hair,\nsuch as shampoos, conditioners, hair dye and hair straighteners. They expect cosmetics products to\nbe available in the market to meet their needs in a broad and effective manner. Evaluating efficacy of\nhair care products in vitro involves the use of highly accurate equipment. This review aims to discuss\nin vitro methodologies used to evaluate the effects of hair care products on hair fiber, which can\nbe assessed by various methods, such as Scanning Electron Microscopy, Transmission Electron\nMicroscopy, Atomic Force Microscopy, Optical Coherence Tomography, Infrared Spectroscopy, Raman\nSpectroscopy, Protein Loss, Electrophoresis, color and brightness, thermal analysis and measuring\nmechanical resistance to combing and elasticity. The methodology used to test hair fibers must be\nselected according to the property being evaluated, such as sensory characteristics, determination\nof brightness, resistance to rupture, elasticity and integrity of hair strain and cortex, among others.\nIf equipment is appropriate and accurate, reproducibility and ease of employment of the analytical\nmethodology will be possible. Normally, the data set must be discussed in order to obtain conclusive\nanswers to the test....
Background: Occupational exposures to ultrafine particles in the plume generated during laser hair removal\nprocedures, the most commonly performed light based cosmetic procedure, have not been thoroughly characterized.\nAcute and chronic exposures to ambient ultrafine particles have been associated with a number of negative respiratory\nand cardiovascular health effects. Thus, the aim of this study was to measure airborne concentrations of particles in a\ndiameter size range of 10 nm to 1 Ã?¼m in procedure rooms during laser hair removal procedures.\nMethods: TSI Model 3007 Condensation Particle Counters were used to quantify the particle count concentrations in\nthe waiting and procedure rooms of a dermatology office. Particle concentrations were sampled before, during, and\nafter laser hair removal procedures, and characteristics of each procedure were noted by the performing dermatologist.\nResults: Twelve procedures were sampled over 4 days. Mean ultrafine particle concentrations in the waiting and\nprocedure rooms were 14,957.4 particles/cm3 and 22,916.8 particles/cm3 (p < 0.0001), respectively. Compared to\nbackground ultrafine particle concentrations before the procedure, the mean concentration in the procedure room\nwas 2.89 times greater during the procedure (p = 0.009) and 2.09 times greater after the procedure (p = 0.007). Duration\nof procedure (p = 0.006), body part (p = 0.013), and the use of pre-laser lotion/type of laser (p = 0.039), were the most\nimportant predictors of ultrafine particle concentrations. Use of a smoke evacuator (a recommended form of local\nexhaust ventilation) positioned at 30.5 cm from the source, as opposed to the recommended 1ââ?¬â??2 in., lowered particle\nconcentrations, but was not a statistically significant predictor (p = 0.49).\nConclusions: Laser hair removal procedures can generate high exposures to ultrafine particles for dermatologists and\nother individuals performing laser hair removal, with exposure varying based on multiple determinants....
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