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66 Results
Type: Article
Section: Testing
Method/Process
Measuring the Antioxidant Potential of an Acai Extract
The antioxidant potential of cosmetic materials can be evaluated by several methodologies, including a commercial kit that measures total antioxidant status, as illustrated here with a commercial extract from the fruit of the açaí, a Brazilian palm tree. Applications in antiaging products are suggested.
Method/Process
Measuring the Antioxidant Potential of an Acai Extract
The antioxidant potential of cosmetic materials can be evaluated by several methodologies, including a commercial kit that measures total antioxidant status, as illustrated here with a commercial extract from the fruit of the açaí, a Brazilian palm tree. Applications in antiaging products are suggested.
Method/Process
Evaluating Essential Oils in Cosmetics: Antioxidant Capacity and Functionality
In the present work, the antioxidant capacities of three essential oils derived from basil and thyme were evaluated using a photochemiluminescence (PCL)-based assay. In addition, since the base formulation can affect the antioxidant activity of oils contained therein, ingredient interactions within final formulations were investigated.
Method/Process
Evaluating Essential Oils in Cosmetics: Antioxidant Capacity and Functionality
In the present work, the antioxidant capacities of three essential oils derived from basil and thyme were evaluated using a photochemiluminescence (PCL)-based assay. In addition, since the base formulation can affect the antioxidant activity of oils contained therein, ingredient interactions within final formulations were investigated.
Method/Process
A Dermatological View: Antioxidant Inhibits UV Erythema In Vivo in Humans
Described here was an in vivo model to determine antioxidative capacity of a topical skin care emulsion versus the emulsion’s vehicle on human skin that was exposed to UVR. Results suggest the test emulsion and its vehicle control inhibited the induction of erythema and reduced inflammation caused by the UV exposure.
Method/Process
A Dermatological View: Antioxidant Inhibits UV Erythema In Vivo in Humans
Described here was an in vivo model to determine antioxidative capacity of a topical skin care emulsion versus the emulsion’s vehicle on human skin that was exposed to UVR. Results suggest the test emulsion and its vehicle control inhibited the induction of erythema and reduced inflammation caused by the UV exposure.
Literature/Data
Safeguarding Squalene: Lemon Myrtle Antioxidant for Pollution Protection and Oleostasis
Squalene becomes easily oxidized when exposed to pollution and UV radiation, which promotes skin inflammation, the production of poor-quality sebum, comedogenesis and wrinkling. Lemon myrtle leaf extract neutralizes squalene oxidation and can protect all ethnic skin types from environmentally induced oily skin, restoring oleostasis.
Testing
Omni Antioxidant: Acetyl Zingerone Scavenges/Quenches Reactive Species, Selectively Chelates Iron
Daily exposure to environmental stress keeps skin under a persistent burden from excess ROS. This drives premature skin aging. The present article explores the multiple effects of a single ingredient, acetyl zingerone, to proactively manage excess ROS production via chemical and physical paths.
Literature/Data
Lauder Findings on Sirtuins, Stress and Eucalyptus
New findings highlight the importance of sirtuins in skin cell activity, how they relate to environmental signals and circadian rhythm, plus the antioxidant efficacy of eucalyptus.
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.
Testing
Chocolate and Wine: The Perfect Match for Skin?
The
International Journal of Molecular Sciences
had us at "hello" this month, with a new study comparing the phenolic compounds in chocolate (actually, cocoa by-products) vs. wine (okay, grape seed) extracts for antioxidant and anti-inflammatory skin benefits.
Natural/Sustainable
Planting Ideas: Upcycled Rubber Seed Offers a Renewable Cosmetic Ingredient
The sustainable utilization of by-products from the para rubber production industry is presented here for cosmetics. Experiments confirmed the safety of para rubber seed oil, in addition to antioxidant and skin-lightening efficacies.
Color Cosmetics
Leveling Up: Passion Fruit Drives Color Cosmetics Into New Dimensions
Passion fruit seed extract is shown to exhibit antioxidant, skin whitening and sun protection capabilities in color cosmetics. This novel, natural and sustainable source for cosmetic actives demonstrates a near totality of claims for formulators and marketers.
Testing
Securing Skin: Polysaccharides Deliver Anti-pollution Protection
The present work tests the antioxidant and anti-inflammatory effects of cosmetic polysaccharides for anti-pollution benefits. Air pollution is rising and can negatively impact skin. As such, anti-pollution cosmetics are trending.
Method/Process
A Rapid and Sensitive In vitro Method to Ascertain Antioxidative Capacity*
New methodologies have recently been developed to determine antioxidant effects but they often require extensive training and are time-consuming to conduct. In the present article, however, the authors describe an in vitro method to detect the effects of antioxidant-containing formulations using photochemiluminescence to provide rapid, accurate and sensitive measurements.
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
Dihydroavenanthramide D for Anti-irritant and Anti-itch
Naturally occurring and synthetic avenanthramides were evaluated for their efficacy to inhibit substance P-induced release of histamine from mast cells. In vivo tests showed that four synthetic avenanthramides demonstrated ability to significantly reduce histamine-induced itch and redness. Dihydroavenanthramide D was also shown to be an excellent antioxidant.
Method/Process
A Dermatological View: Using Photochemiluminescence to Quantify the Antioxidative Capacity of Topicals
Exposure to ultraviolet radiation (UVR), air pollutants, chemical oxidants and aerobic microorganisms may damage the skin. In particular, reactive oxygen species (ROS) are considered a likely contributor to skin aging, cancer and certain skin disorders.
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