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New in Function (page 2 of 53)
Sep 03, 2013 | 02:12 PM CDT
By: Sébastien Miksa, Dominique Lutz and Céline Guy…
This work evaluates the impact of three different substrates on in vitro SPF measurements, and defines experimental conditions to improve their correlation with in vivo values. Evaluations of 32 products, shown here, led the authors to conclude that molded substrates improved repeatability and correlation with in vivo SPF values.
Sep 03, 2013 | 02:02 PM CDT
By: Dennis Lott, Florida Suncare Testing, Inc.
Lab tests on sunscreens show it takes more energy to produce mild erythema on protected skin than unprotected skin. Yet the FDA questions the need for SPFs higher than 50. In response, two outdoor studies were conducted using commercial products to challenge standing premises and determine if there is a measurable difference in an SPF 100 and SPFs of 50 or less.
Sep 03, 2013 | 01:52 PM CDT
By: Chris McLeod, HPCI Media
There are various test methods set by global governing bodies for SPF protection, but this article will discuss the five time-point internationally approved ISO 24444 method.
Sep 03, 2013 | 01:01 PM CDT
By: Estelle Loing, PhD; Elisabeth Lamarque; Carine…
Ultraviolet and infrared exposure are sources of premature skin aging, characterized by solar elastosis and extracellular matrix degradation. Polygonum aviculare extract is a cathepsin G inhibitor, and is shown here to oppose photoaging and infra’aging by improving skin firmness and elasticity, in turn reducing the appearance of wrinkles.
Sep 03, 2013 | 12:47 PM CDT
By: Luigi Rigano, PhD, Studio Rigano Industrial Co…
Cosmetic means for achieving rejuvenated skin can be positioned according to intensity of action, skin renewal speed and some functioning details, thus: gommage, scrub, exfoliation and peel represent the four rejuvenation strategies. In some regions, peel refers to aggressive treatments requiring authorized operators such as dermatologists or medical doctors. Therefore, this column will discuss only the first three methods for a better skin glow.
Aug 02, 2013 | 02:41 PM CDT
By: Judi Beerling, Organic Monitor Ltd.; and Tony …
Many certified organic shampoos and body washes use soaps such as potassium cocoate as their primary cleansing agent, partially due to a lack of suitable, organically approved foaming alternatives. This article reviews the use of modern surfactants and emulsifiers developed based on a green and eco-conscious philosophy.
Aug 02, 2013 | 01:39 PM CDT
By: Stefan Gafner, PhD, Tom’s of Maine
This article reviews in vitro studies that have found Chinese licorice extract to impart potent antibacterial and soothing properties, which make it an interesting candidate for applications in oral and personal care. Further, a clinical study is described in brief, assessing the ability of a supercritical CO2 extract from Chinese licorice to impart breath-freshening properties.
Aug 02, 2013 | 12:17 PM CDT
By: Paola Ziosi, Stefano Manfredini, Alberta Vandi…
In recent years, the safety of traditional preservatives has been called into question. Therefore, there is a need for alternatives that are effective, safe and sustainable—and that are non-controversial. In response, the present work investigates a mixture of caprylyl glycol and phenethyl alcohol, which is shown to provide antimicrobial activity in various skin and hair care formulations.
Jul 02, 2013 | 10:24 AM CDT
By: Jonathan Hadgraft and Majella E. Lane, Univers…
Numerous claims made in the popular press misrepresent the facts about formulations, and cosmetic science is not well-served by this. Here, the authors examine a number of such statements. The influence of skin creams and formulations on the penetration of actives must be communicated in a responsible manner to the public if the industry is to banish prevalent myths.
Jul 02, 2013 | 10:08 AM CDT
By: Robert J.W. Hefford, Independent Cosmetic Advi…
The “recast” of the 1976 Cosmetics Directive was intended to make things simpler, but does it? This article reviews and comments on the EU’s regulatory position on hair dyes, as of the first half of 2013.