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77 Results
Type: Article
Section: Cosmetic Ingredients
Hair Care
The Quest for Avobenzone Stabilizers and Sunscreen Photostability
Butyl methoxydibenzoyl methane (BMDBM) is well-known as an effective UVA filter when it is stabilized. Here, the authors measure the efficiency of ten commercially available products that are reported to stabilize BMDBM. The most effective product found was octocrylene that, being a UVB filter, also contributed to the SPF.
Sun Care
W/O/W Technology to Enhance Organic UVA/UVB Sunscreen Performance
A new water-in-oil-in-water technology is described here that functions as an isolating shield, preventing UV filter particles from aggregating and helping their dispersion in formulas. The technology is shown in vitro and in vivo to improve SPF performance, UVA/UVB wide band high protection ratio, SPF sustainability and safety concerns regarding skin penetration.
Sun Care
Coated Inorganic Filters for Elegant and Protective Sunscreens
Inorganic UV filters must be distributed evenly to ensure sun protection. Further, they can present challenges of a pasty consistency and undesirable opacity when applied to skin. This paper therefore describes strategies using micronized titanium dioxide with different coatings to optimize its dispersion and protective benefits while improving processing and aesthetics.
Sun Protection
The Best Sunscreen? The One People Will Use.
This guest advisor commentary comes from regular
Cosmetics & Toiletries
contributor and photochemistry expert Craig Bonda, president of Inception Partners, LLC, and technical consultant to the sunscreen industry.
Preservation
Sunscreen Preservation, schülke is Up to the Challenge
Sunscreens, high oil phases, natural oils … all can be a challenge to preserve. This is particularly true when using modern, non-traditional preservation methods. sensiva® PA 40 is the perfect solution for these difficult-to-preserve systems.
Sun Care
Developing Sunscreens for the Preventive Treatment of Photodamage and Premature Aging
This article reviews the mechanisms of ultraviolet radiation insult to skin and explains the formulation of sunscreens to protect against this damage. Further, since the efficacy of combinations of UV filters will vary with formulation base, the formula vehicle and form are discussed, as well as an overview given of typical sunscreen efficacy tests performed prior to production.
Sun Care
Developing Sunscreens for the Preventive Treatment of Photodamage and Premature Aging
This article reviews the mechanisms of ultraviolet radiation insult to skin and explains the formulation of sunscreens to protect against this damage. Further, since the efficacy of combinations of UV filters will vary with formulation base, the formula vehicle and form are discussed, as well as an overview given of typical sunscreen efficacy tests performed prior to production.
Research
How Natural Antioxidants, Iron Chelators Boost Sunscreens and Anti-aging Products
A recent article reviews the mechanisms of aging caused by excess ROS production due to UV, visible and infrared light exposure. Natural antioxidants with specific properties are proposed to strengthen sunscreens and anti-aging products.
Regional
Cosmetovigilance and Safety Assessment in the World of Active Ingredients
It can be deduced from today's scientific literature that countless ingredients have been developed with the intent to alter the structure and function of human skin. This raises important questions in terms of how these products should be regulated and what types of safety standards they should be held to.
Sun Care
Film-Forming Polymers as a Strategy for Sunscreen Efficacy
Acrylic-based film-forming polymers lend properties of water resistance to both traditional and nontraditional sunscreen formulations. Dehydroxanthan gum is a film-forming polymer, a rheology modifier and an SPF booster in sunscreen systems containing zinc oxide. Illustrations are provided...
Sun Care
Controlling Hydroxyl Radical Formulation in TiO2 Sunscreens
Titanium dioxide (TiO2) is an effective sunscreen agent but its rutile form may produce hydroxyl radicals upon exposure to sunlight. Thus, the authors use salicylic acid as a capture agent to examine the development of free radicals in solutions or creams containing TiO2. They also explain how the choice of emulsion may reduce free radical generation.
Sun Care
Organic vs. Mineral: Where Sunscreens are Headed and Why.
Take a deeper dive into the debate between organic and mineral UV filters used in Sunscreen and the twists and turns that keep formulators guessing which is best.
Sun Care
The Effects of Solvents on Sunscreens: A New Ester to Improve Efficiency
The present paper evaluates the effects of solvent systems on the in vivo SPFs of sunscreen formulations. Formulations incorporating identical active systems were prepared using traditional solvent systems and varying concentrations of sorbeth 2 hexaoleate, a new ester having both polar and nonpolar segments. Results indicate the ester enhances SPF in a dose-dependent manner.
Sun Care
Read the Label: Nivea's Sun Protect & Dry Touch Sunscreen Spray SPF 50
This "Read the Label" is focused on sunscreen and reviews Nivea’s Sun Protect & Dry Touch Sunscreen Spray SPF 50, which includes key ingredients such as octocrylene, homosalate and more.
Sun Care
The Effects of Solvents on Sunscreens: A New Ester to Improve Efficiency
The present paper evaluates the effects of solvent systems on the in vivo SPFs of sunscreen formulations. Formulations incorporating identical active systems were prepared using traditional solvent systems and varying concentrations of sorbeth 2 hexaoleate, a new ester having both polar and nonpolar segments. Results indicate the ester enhances SPF in a dose-dependent manner.
Research
[with formula] EverCare's Assure+ Boosts SPF in Certain Sunscreens
Recent data shows at low concentrations, Assure+ boosts SPF and UVA-PF values in mineral only and hybrid sunscreen formulations. The high purity extract increased these properties by 20-40%.
Cleansing
Olivem® 2090, Hallstar’s new W/O cold process emulsifier, helps create naturally elegant sunscreens
New cold-process, nature-derived W/O emulsifier Olivem® 2090 is especially well-suited to sun care formulating.
Literature/Data
Patent Picks—Sugar Sunscreen, UV Microcapsules, ‘Rugby Ball’ Particles and More
Chosen biweekly for their relevance to personal care, Patent Picks are taken from publicly available sources. This edition features technologies related to sun care and UV protection, as well as reversing the effects of UV damage.
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