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New in Formulating (page 11 of 200)
Sep 03, 2013 | 02:12 PM CDT
In vitro/vivo SPF Correlation and Repeatability According to Substrate
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
Testing SPF 15–100, Indoor vs. Outdoor
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
Testing Sun Protection Factor on Skin
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 | 01:38 PM CDT
Energizing Cells for More Youthful Skin
By: Katie Anderson, Cosmetics & Toiletries…
Procter & Gamble (P&G) researchers, including Mary Begovic Johnson, principal scientist, may have come closer to finding the "fountain of youth" in cellular bioenergetics. As she explains, the role of this discipline in skin’s appearance has been identified, along with ingredients that can restore energy to cells.
Sep 03, 2013 | 01:14 PM CDT
3-O-Ethyl Ascorbic Acid: A Stable, Vitamin C-Derived Agent for Skin Whitening
By: Jill Hsu, Corum Inc.
Melanin-reducing agents are considered safer alternatives to melanocytotoxic compounds. Thus, the present work examines the effects of 3-O-ethyl ascorbic acid on enhancing skin tone by reducing melanin through the inhibition of tyrosinase-related proteins. Described studies include tyrosinase and TRP-2 inhibition, in vitro and ex vivo melanin inhibition, clinical whitening, DNA protection and collagen synthesis.
Sep 03, 2013 | 01:01 PM CDT
Inhibiting Cathepsin G to Protect Against Photoaging and Infra’aging
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
Exfoliation, Scrub and Gommage
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 29, 2013 | 03:36 PM CDT
P&G Beauty Decreasing Use of DEP, Triclosan
The company is on track to have its products be phthalate- and triclosan-free by 2014.
Aug 28, 2013 | 11:25 AM CDT
Study finds UV Nail Lamps to Be Safe
Researchers from Rapid Precision Testing Laboratories have found that UV nail lamps are safe and to not cause cancer. After the lamps became popular in the last few years for curing non-chip gel nail polish, many began to question their safety.
Aug 28, 2013 | 11:00 AM CDT
New Research Highlights Role of Elastin in Stretch Mark Formation
Personal genetics company 23andMe has conducted a genetic study on striae distensae (stretch marks) to identify genetic markers for the skin imperfections and determine why some individuals are more susceptible.