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Efficacy
Wet Skin Factor for Sunscreens: An In vitro Method, Part II
Sunscreens designed for application to wet skin are popular in part due to convenience, skipping the drying step completely. In relation, these authors propose a new in vitro test to compare the wet skin factor of sun care products. Here, 20 products were tested and compared according to several conditions in order to define the best parameters for the method.
Sun Care
Uniquely Stable Emulsions Revealed Through Freeze-fracture Transmission Electron Microscopy
Researchers investigated the structures and features of emulsions made with different emulsifiers via freeze-fracture transmission electron microscopy. Potassium cetyl phosphate formed more multi-lamellar spheres than other emulsifiers, and aggregated homo-domains on top of lamellar sheet surfaces and multi-lamellar spheres. These homo-domains are likely to be responsible for the excellent emulsion stability achieved.
Efficacy
In vivo Delivery Confirmation: Measuring the Deposition of Salicylic Acid from Anti-acne Face Wash
Measuring the delivery of active ingredients is an important part of the product development process, and particularly desirable are non-invasive, in vivo methods. This work describes the use of fluorescence excitation emission matrices in vivo to measure the deposition of salicylic acid from anti-acne face wash products.
Efficacy
Wet Skin Factor for Sunscreens: An In vitro Method, Part I
Sunscreens designed for application to wet skin are popular in part due to convenience, skipping the drying step completely. In relation, these authors propose a new in vitro test to compare the wet skin factor of sun care products. Here, 20 products were tested and compared according to several conditions in order to define the best parameters for the method.
Actives
Infusing New Life into an Old Reliable Skin Treatment: Retinaldehyde
Retinaldehyde is suitable for many skin care applications, and when combined with other substances becomes even more versatile. One of its newest topical delivery systems provides multifunctional opportunities.
Tech Transfer
Touchscreen Skin: The Next Wearable?
Are we closer to an e-Skin reality? The market may be ready. But is the technology?
Efficacy
Heat Protection Getting Warmer: Specialty Silicones for Hair
The present study examines the ability of silicones to protect hair during heat styling, compared with other industry benchmarks and untreated hair. Also discussed are the mechanisms through which different silicones contribute heat protection in hair care products such as leave-in conditioners, serums and other product forms.
Literature/Data
Hair Health Starts With the Scalp: Insights from Two P&G Head & Shoulders Experts
Hair care scientists scratched their heads for some time before they could put their finger on the primary causes of dandruff. Now, with the flakes brushed away, they are seeing the scalp in a new light. Two Procter & Gamble scientists, James Schwartz, Ph.D., and Rolanda Wilkerson, Ph.D., both with the Head & Shoulders brand, explain how in this exclusive interview.
Claims/Labeling
Claims: The Lifeline to Product Success in the Marketplace
Les Smith, C&T scientific advisor, offers his insights on recent trends in claims substantiation and its direct impact on the role of the cosmetic formulator.
Efficacy
VIDEO: P&G Scientists on Claims Substantiation in Anti-dandruff Care
Head & Shoulders recruits an army to prove the benefits its brand delivers to consumers. Hear more in this video.
Claims/Labeling
Make Your Claims Bulletproof: Let Science Serve as Your Vest
Manufacturers are easy and frequent targets of litigation for claims they make on their products. You can avoid unwanted attention from regulatory organizations by ensuring your claims are substantiated by science.
Methods/Tools
Want the Truth: Claims Development is More Than Just Evidence.*
Both marketing and R&D have major responsibilities in the claims development process. But that’s not all—regulations, risk, vulnerabilities, communication, study design, costs and more also are at play. These and other influences in the claims development process are discussed in the present article.
Methods/Tools
Performance Claims: When, Why and How to Use Them
Oftentimes formulators will test products to add performance claims to the product’s marketing. Here’s a look at how to approach the process.
Sensory
'Zapping' Sensitive Skin: Capsaicin Tests Show
Embelia concinna
Comforts Irritation
In previous work, a flavonoid-titrated active ingredient based on
Embelia concinna
was shown in vitro to calm and soothe sensory neurons stimulated with capsaicin. Here, those results are confirmed in vivo using a capsaicin stinging test with human volunteers.
People
Gordon Laboratories Promotes Scientist
Lokesh Jain has been promoted to vice president of research and development plus technical services for Gordon Laboratories.
Claims/Labeling
Can You Promote ‘All-natural’ With Synthetic Ingredients?
The FTC determines companies can’t promote their personal care products as “all natural” if they contain any synthetics, such as dimethicone and phenoxyethanol.
Efficacy
How to Prove 'Rub-resistant' Sun Protection
Today’s consumers desire sunscreens that are not only more effective against UV radiation, but also provide water, sand, sweat and rub resistance. These authors propose a new in vitro test to assess and compare rub resistance factors, which they illustrate here by testing 20 sun care products.
Safety/Stability
It'll Grow on You: Fully Functional 3D Skin Model
Blood, sweat and hairs ... a group of researchers from Japan have developed a skin transplant model that can create fully functional 3D skin transplants, complete with hair follicles and sebaceous glands, for replacing seriously damaged skin or as an alternative to animal tests.
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