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344 Results
Section: Testing
Efficacy
[podcast] Author Commentary: Fabio Apone, Ph.D., on Cold Stress Skin Damage
The mechanisms of cold stress damage in skin are a new focus for cosmetics research. In his January 2018 article, Fabio Apone, Ph.D., explains these mechanisms; in relation, in this Author Commentary podcast, he shares what drove his team’s interest in this area and the next steps. Listen now!
Method/Process
AmorePacific, Hanyang Univ. Dynamically Visualize UV Dose on SPF-protected Skin
Work by AmorePacific and Hanyang University, Seoul, published in
Skin Research & Technology
, reveals a dynamic approach to visualize UV dose based on MED, weather, outdoor activity, etc., on SPF-protected skin.
Method/Process
Influence of Skin Diffuse Reflectance on Sun Damage and Ingredient Efficacy Measurements
Current in vitro methods to assess photostability and antioxidant activity do not account for the diffuse reflectance of skin. Described here is an in vitro test that addresses this variable, mimics end-use product conditions and models photodamage processes. The approach is employed to determine the efficacy of an antioxidant from the
Camellia sinensis
(tea) plant.
Method/Process
Influence of Skin Diffuse Reflectance on Sun Damage and Ingredient Efficacy Measurements
Current in vitro methods to assess photostability and antioxidant activity do not account for the diffuse reflectance of skin. Described here is an in vitro test that addresses this variable, mimics end-use product conditions and models photodamage processes. The approach is employed to determine the efficacy of an antioxidant from the Camellia sinensis (tea) plant.
Methods/Tools
Conditioned Response: Fragrance's Cross-modal Effect on Sensory Perception in Hair Care*
This study compared the impact of two fragrance types on the tactile perception of dry, bleached hair treated with a base or enhanced leave-on conditioner. Sensory tests showed a fruity fragrance was most successful at imparting the perception of conditioned hair.
Efficacy
Body Talk: Defining Volume, A Technical Dissertation on Hair Body and Volume
Consumer definitions of hair
volume
and
body
differ from their scientific counterparts, while both remain vague. This column discusses challenges concerning the study of hair volume and body, including the influences of hair coloring and styling.
Literature/Data
A New Spin on Delivery: Electrospun Collagen Drives Actives to New Depths
Nanofibers from marine collagen were tested for their ability to deliver hyaluronic acid and grapeseed and kiwifruit bioactives into skin. Results showed they penetrated in under one minute. This sustainable and natural platform removes the need for emulsifiers, penetration enhancers and other transporter ingredients. It also enables the encapsulation of a wide range of water- and oil-based actives.
Safety
11 Changes to SCCS Guides for Cosmetics Safety Testing — Plus a Note on 'Nano'
The European Union's (EU's) Scientific Committee on Consumer Safety (SCCS) recently updated its notes of guidance (NoG) for cosmetics and cosmetic ingredient safety testing, emphasizing alternatives to animal testing and more.
SPF/Sun
FDA Publishes Opinion on Two Sunscreen TEAs and Is Urged for More Action by PASS
The end of February was busy for the U.S. Food and Drug Administration (FDA), which published two letters on the Time and Extent Applications (TEAs) for diethylhexyl butamido triazone (Uvasorb HEB) and amiloxate (Neo Heliopan E 1000), finding insufficient scientific evidence to claim either as generally recognized as safe and effective (GRASE) and denying their addition to the OTC Sunscreen Monograph.
Method/Process
BRAIN AG and Mannheim University of Applied Sciences Publish Article on 3D Skin Models
The article provides a comprehensive table comparing available 3D skin models.
Method/Process
The Air Up There: Skin VOCs
In 2001, Japanese researchers reported that after the age of 40, some individuals develop a malodor known as “aging odor,” attributed to the presence of unsaturated C9, 2-nonenal. George Preti, PhD, a member of Monell Chemical Senses Center and an adjunct professor of dermatology at the University of Pennsylvania School of Medicine, was interested by this report and began to conduct research of his own.
Method/Process
The Air Up There: Skin VOCs
In 2001, Japanese researchers reported that after the age of 40, some individuals develop a malodor known as “aging odor,” attributed to the presence of unsaturated C9, 2-nonenal. George Preti, PhD, a member of Monell Chemical Senses Center and an adjunct professor of dermatology at the University of Pennsylvania School of Medicine, was interested by this report and began to conduct research of his own.
Safety/Stability
Why the FDA's 'Sunscreens in the Bloodstream' Study is Flawed
A recent study published in the
Journal of the American Medical Association
tested the potential systemic absorption of certain sunscreens. Results identified their presence in subjects' bloodstreams; however, as industry expert David Steinberg explains, the study is misleading and fails to consider crucial variables.
Color Cosmetics
In the Mind's Eye: Color Science to Expand the Multicultural Palette
In recent years, the demand for multicultural cosmetics has grown, putting pressure on formulators to extend the shade range of product offerings. The present article reviews the basics of color science, pigments and formulation concepts to support developers for this segment.
Event Coverage
Genomics Take the Cake at the SCC December Meeting
The Society of Cosmetic Chemists (SCC) took innovation down to the genome level in not one but two of the five conference tracks presented Dec. 9–10, 2010, at the Annual Scientific Meeting and Technology Showcase.
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.
Event Coverage
What Beauty Innovations Qualify for the 2025
C&T Allēs
? What Are the Requirements?
What entries compete in the
C&T Allēs
? From ingredients, blends and prototype/finished formulas, to test methods/tools, devices and digital tech, entries span the cosmetic R&D process. Read on for more and enter now - the deadline is Sept. 13!
Actives
Acne Meets Germ Theory Meets the iPhone in Telegermatology Study
Patients can take part in the research regardless of location, using medications and iPhones shipped personally to them.
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