Comparative study of neural networks and least mean square algorithm applied to the optimization of cosmetic formulations.

abstract：OBJECTIVES:Quantification of stratum corneum (SC) protein levels from tape strippings is frequently used to investigate skin conditions, to correct for amounts of SC protein removed in SC biomarker studies and to determine distribution of topically applied ingredients. In recent years, a rapid and convenient method for...

journal_title：International journal of cosmetic science

authors： Raj N,Voegeli R,Rawlings AV,Gibbons S,Munday MR,Summers B,Lane ME

更新日期：2016-06-01 00:00:00

abstract：OBJECTIVE:Although the olfactory receptor OR2AT4 was described as involved in epidermal renewal, there is no data about a cosmetic active ingredient activating this receptor. The aim of this research work was thus to identify a natural molecule binding to this receptor in order to stimulate keratinocyte migration. MET...

journal_title：International journal of cosmetic science

authors： Verzeaux L,Richer S,Viguier J,Gofflo S,Boudier D,Aymard E,Closs B

更新日期：2019-04-01 00:00:00

abstract：OBJECTIVE:Exposure to UV in humans resulting in sunburn triggers a complex series of events that are a mix of immediate and delayed damage mediation and healing. While studies on the effects of UV exposure on DNA damage and repair have been reported, changes in the oxidative modification of skin proteins are poorly und...

journal_title：International journal of cosmetic science

authors： Dyer JM,Haines SR,Thomas A,Wang W,Walls RJ,Clerens S,Harland DP

更新日期：2017-04-01 00:00:00

abstract：:Synopsis In the last few years a lot of attention has been paid to the development of the in vitro models which would substitute for animals in cutaneous irritancy studies. These models explore either organ or explant cultures using freshly excised skin or serial cultures of isolated skin cells (epidermal keratinocyte...

journal_title：International journal of cosmetic science

authors： Ponec M

更新日期：1992-12-01 00:00:00

abstract：:Synopsis The self-diffusion of salicylic acid has been monitored radiochemically through pigskins (whole and dermal) and human skins (whole, dermal and epidermal). The effects of pH, temperature and changing dimethyl formamide (DMF) concentration on the penetration of salicylic acid through the various skin membranes ...

journal_title：International journal of cosmetic science

authors： Dyer A,Hayes GG,Wilson JG,Catterall R

更新日期：1981-12-01 00:00:00

abstract：:Cutaneous ageing is the result of two distinct, biological processes which may occur concurrently: (i) the passage of time, termed intrinsic ageing and (ii) environmental influences, termed extrinsic ageing. Intrinsic ageing of the skin is a slow process which causes changes in tissue structure and impairs function in...

journal_title：International journal of cosmetic science

authors： Langton AK,Sherratt MJ,Griffiths CE,Watson RE

更新日期：2010-10-01 00:00:00

abstract：OBJECTIVES:Ageing leads to characteristic changes in the appearance of facial skin. Among these changes, we can distinguish the skin topographic cues (skin sagging and wrinkles), the dark spots and the dark circles around the eyes. Although skin changes are similar in Caucasian and Chinese faces, the age of occurrence ...

journal_title：International journal of cosmetic science

authors： Porcheron A,Latreille J,Jdid R,Tschachler E,Morizot F

更新日期：2014-08-01 00:00:00

abstract：:There are a variety of biological mechanisms that contribute to specific characteristics of ageing skin; for example, the loss of skin structure proteins, increased susceptibility to UV-induced pigmentation and/or loss of hydration. Each of these biological processes is influenced by specific groups of genes. In this ...

journal_title：International journal of cosmetic science

authors： Gopaul R,Knaggs HE,Lephart J

更新日期：2011-10-01 00:00:00

abstract：:The aim of this work was to investigate the effects of 1,18-octadecen-9-dioic acid (dioic acid) and a Rumex occidentalis extract complex for their skin-lightening action in an Indian population. Prior to the clinical study, the efficacy of dioic as an inhibitor of melanogenesis was confirmed on dark-pigmented human me...

journal_title：International journal of cosmetic science

authors： Merinville E,Byrne AJ,Visdal-Johnsen L,Bouvry G,Gillbro JM,Rawlings AV,Laloeuf A

更新日期：2012-12-01 00:00:00

abstract：OBJECTIVE:The goal of this work was to develop a novel polyurethane polymer coating for the surface of the hair that could be used for style setting via the shape memory effect (SME). The features of the films are in accordance with conventional hair styling methods used in the laboratory. METHODS:In this study, a new...

journal_title：International journal of cosmetic science

authors： Liu Y,Liu YJ,Hu J,Ji FL,Lv J,Chen SJ,Zhu Y

更新日期：2016-06-01 00:00:00

abstract：:Various models of reconstructed epidermis already provide useful tools for safety and efficacy assessment of cosmetic products. However, the majority of these in vitro models are composed of keratinocytes only. Recently, the introduction of melanocytes into epidermal reconstructs has considerably enlarged their field ...

journal_title：International journal of cosmetic science

authors： Regnier M,Duval C,Schmidt R

更新日期：1999-02-01 00:00:00

abstract：OBJECTIVE:The objective of this work was to investigate the utility of a new in vitro SPF test method in blinded ring-testing, against new ISO acceptance criteria. METHODS:Twenty four blinded, commercial, emulsion-type, primary sunscreen products, covering the full range of labelled SPF in Europe (SPF6 - 50+), were te...

journal_title：International journal of cosmetic science

authors： Pissavini M,Tricaud C,Wiener G,Lauer A,Contier M,Kolbe L,Trullás Cabanas C,Boyer F,Nollent V,Meredith E,Dietrich E,Matts PJ

更新日期：2018-04-20 00:00:00

abstract：:A novel ex vivo technique has been used to assess the sand/rub resistance of topical sunscreens. The technique is based on transmission spectrometry using excised human epidermis as the substrate. The sun protection factors (SPFs) of 10 sunscreen products were measured prior to, and after agitation with sand. It was f...

journal_title：International journal of cosmetic science

authors： Stokes RP,Diffey BL

更新日期：2000-10-01 00:00:00

abstract：:In recent years the importance of sphingolipids (cerebrosides, sphingomyelin, ceramides, sphingosine-1-phospate, etc.) in skin biology is receiving an increasing interest. Not only are ceramides essential for the barrier function of the skin, especially through their phytosphingosine, sphingosine and 6-hydroxysphingos...

journal_title：International journal of cosmetic science

authors： Farwick M,Watson RE,Rawlings AV,Wollenweber U,Lersch P,Bowden JJ,Bastrilles JY,Griffiths CE

更新日期：2007-08-01 00:00:00

abstract：OBJECTIVE:To study the permeation of liquiritigenin (LQG) and liquiritin (LQ) as licorice flavonoids into the skin, we prepared ceramide liposome-in-cellulose hydrogel complex system. METHODS:Liposome-in-hydrogel complex systems were developed by incorporating ceramide liposomes into cellulose hydrogels by the swellin...

journal_title：International journal of cosmetic science

authors： Kim SJ,Kwon SS,Jeon SH,Yu ER,Park SN

更新日期：2014-12-01 00:00:00

abstract：OBJECTIVE:To study the effects of addition of a redox metal, copper, antioxidants and metal chelators on the formation of free radicals in natural white Caucasian hair subsequently exposed to UV light. Three different methods, electron paramagnetic resonance (EPR), a fluorescent probe for hydroxyl radical formation (te...

journal_title：International journal of cosmetic science

authors： Millington KR,Marsh JM

更新日期：2020-04-01 00:00:00

abstract：:The present investigation describes a comparative study for the design of innovative topical formulation for skin hydration. In particular, different colloidal forms based on lipidic components have been produced and characterized. Morphology and dimensional distribution have been investigated by means of electron mic...

journal_title：International journal of cosmetic science

authors： Esposito E,Drechsler M,Mariani P,Sivieri E,Bozzini R,Montesi L,Menegatti E,Cortesi R

更新日期：2007-02-01 00:00:00

abstract：OBJECTIVE:The aim of the study was to determine the optimal conditions, that is the content of hemp oil and time of homogenization to obtain stable dispersion systems. METHODS:For this purpose, six emulsions were prepared, their stability was examined empirically and the most correctly formulated emulsion composition ...

journal_title：International journal of cosmetic science

authors： Kowalska M,Ziomek M,Żbikowska A

更新日期：2015-08-01 00:00:00

abstract：:Synopsis The viscosity of cosmetic emulsions is of great practical importance and related to their skin feel. To achieve a desirable and constant viscosity is not an easy task because numerous factors must be considered. Based on theoretical considerations a new surfactant, steareth-5-stearate, has been developed. It ...

journal_title：International journal of cosmetic science

authors： Dahms G

更新日期：1991-02-01 00:00:00

abstract：:Variable skin pH values are being reported in literature, all in the acidic range but with a broad range from pH 4.0 to 7.0. In a multicentre study (N = 330), we have assessed the skin surface pH of the volar forearm before and after refraining from showering and cosmetic product application for 24 h. The average pH d...

journal_title：International journal of cosmetic science

authors： Lambers H,Piessens S,Bloem A,Pronk H,Finkel P

更新日期：2006-10-01 00:00:00

abstract：:The stratum corneum is the outermost layer of the skin. It constitutes a permeability barrier that keeps micro-organisms and toxic agents from entering the skin, while retaining water and electrolytes. In order to preserve its colour and elasticity, the skin needs lipids and water. Certain occlusive products in contac...

journal_title：International journal of cosmetic science

authors： Marques JP,Basso DS,Nunes AS

更新日期：2007-04-01 00:00:00

abstract：OBJECTIVE:Axillary wetness represents an unwanted effect of the physiologically vital sweating mechanism, especially when it becomes excessive. Cosmetic products reducing sweat secretion rely on aluminium salts as the active ingredient acting by physically blocking the sweat gland. Driven by the interest to better unde...

journal_title：International journal of cosmetic science

authors： Welzel J,Grüdl S,Welss T,Claas M,Sättler A,Förster T,Banowski B

更新日期：2020-12-01 00:00:00

abstract：:Synopsis The study of ternary systems leads to the understanding of the physico-chemical aspect and allows the contribution of the different components to a cosmetic formulation to be developed. The present investigation was centred in the zone of transparent get belonging to a previously studied ternary system contai...

journal_title：International journal of cosmetic science

authors： Comelles F,Megias V,Sánchez J,Parra JL,Coll J,Balaguer F,Pelejero C

更新日期：1989-02-01 00:00:00

abstract：:Hexamidine (HEX) has been used as a preservative in topical preparations since the 1950s. A number of studies also indicate that the molecule plays a beneficial role in skin homoeostasis. In this review, we describe the physicochemical properties of hexamidine diisethionate (HEX D) and the corresponding hydrochloride ...

journal_title：International journal of cosmetic science

authors： Parisi N,Matts PJ,Lever R,Hadgraft J,Lane ME

更新日期：2017-08-01 00:00:00

abstract：:Lower eyelid sags as well as wrinkles represent age-related morphological changes of the skin surface. However, a quantitative method to evaluate lower eyelid sagging has not been previously established. We designed a new quantitative evaluation method that uses non-invasive skin scanning, which is based on the differ...

journal_title：International journal of cosmetic science

authors： Fukuda Y,Fujimura T,Moriwaki S,Kitahara T

更新日期：2005-10-01 00:00:00

abstract：:Cocamidopropyl betaine (CAPB) has been the most important secondary surfactant for personal-cleansing products for a long time. Its excellent toxicological profile is an important reason for its increasing use in oral-care products. Recently it has gained interest for further applications such as household cleaners, d...

journal_title：International journal of cosmetic science

authors： Leidreiter HI,Gruning B,Kaseborn D

更新日期：1997-10-01 00:00:00

abstract：:A multicentred study derived from the COLIPA in vitro UVA method was performed to assess the influence of test conditions on UVA protection factor (UVAPF) values in terms of amplitude, reproducibility between laboratories and correlation with in vivo UVA results. Eight products with a range of in vivo UVAPF from three...

journal_title：International journal of cosmetic science

authors： Moyal D,Alard V,Bertin C,Boyer F,Brown MW,Kolbe L,Matts P,Pissavini M

更新日期：2013-02-01 00:00:00

abstract：:The objective of the study was to compare measurements of skin hydration and of biomechanical properties performed on different zones of face and volar forearm. Two short-term (1 h) and two long-term (3 weeks) studies were conducted with a moisturizing and a firming product, respectively, on groups of female volunteer...

journal_title：International journal of cosmetic science

authors： Bazin R,Fanchon C

更新日期：2006-12-01 00:00:00

abstract：:Long cattle tendons were enzymatically disposed of lipoid and accompanying nitrogenous substances. Collagenous hydrolysate of average molecular mass M(a) = 0.830 +/- 1.206 kDa, suitable for application in skin and hair-care preparations, was obtained through hydrolysis by commercial protease (Bacillus subtilis) under ...

journal_title：International journal of cosmetic science

authors： Langmaier F,Mládek M,Kolomazník K,Sukop S

更新日期：2002-10-01 00:00:00

abstract：:Synopsis A brief review of new techniques of assessing skin irritancy is presented. Some of the difficulties of assessing minor degrees of irritancy are discussed. ...

journal_title：International journal of cosmetic science

authors： Vickers CF

更新日期：1979-12-01 00:00:00