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Type: Article

Properties of Emulsions: Structure and Skin Penetration

This work studied the influence of emulsion type and structure on the penetration of vitamins as cosmetic active ingredients. An emulsion of the w/o type and two different o/w emulsions were compared with an oil solution as a standard. A systematic in vitro study of penetration into the stratum corneum and the living skin was performed with the isolated perfused bovide udder skin model. The results substantiate the influence of emulsion type and stucture on the degree of penetration of water-soluble and oil-soluble vitamins into the skin.

After 5 applications, Quinoa Pro EX reduced damage in the hair shaft by 26%.

Hydrolyzed Quinoa for Hair Repair and Gloss

Quinoa Pro EX (INCI Name: Hydrolyzed Quinoa) is a hydrolyzed quinoa protein from TRI-K Industries that is designed to bind to the hair shaft and penetrate the cortex, bringing moisture and repair deep into the hair.

Lightening, Boosting and Protecting with Colorless Carotenoids

Phytoene and phytofluene (P&P) are carotenoids that are precursors in the biosynthetic pathway of other carotenoids. These materials occur naturally in microorganisms, algae and other plants and exhibit benefits for skin care including skin lightening, anti-inflammatory activity and protection against UV and oxidative damage, as is shown here.

Each chapter delivers a critical evaluation of a delivery technology open to the cosmetic formulator.

Science and Applications of Skin Delivery Systems

Written by experts in their specific delivery subject who are passionate about their subject, this book is a special delivery system of its own! Each chapter delivers a critical evaluation of a delivery technology open to the cosmetic formulator. This allows the reader to decide what delivery system or delivery technique is most appropriate for his or her application based on scientific evidence.

REACH and In Vitro Alternatives: Phototoxicity Testing

This is the third column in a continuing discussion regarding the new REACH regulations and their impact on chemical testing. The first appeared in December 2007 and discussed dermal corrosive potential testing; the second, in February 2008, covered dermal irritancy potential testing.

Tech Edge: RNA Interference and Therapeutic Applications

Regular columnist Mindy Goldstein, PhD, welcomes this “Tech Edge” contribution from colleague Narendra Vaish, PhD, of Nastech Pharmaceutical Company.

2005 Preservatives Use: Frequency Report and Registration

The U.S. Food and Drug Administration (FDA) compiles frequency of use data from registrations submitted through the Voluntary Cosmetic Registration Program (VCRP). Here, a review of the latest preservative data collected is presented as well as a discussion of the importance of the registration program.

Color Development Using Silicone Emulsifiers and Dispersants

Several types of PEG/PPG dimethicones and acrylate silicone copolymers were selected, and significant differences in their ability to disperse and stabilize pigments were studied. As the particle size got smaller, the color became deeper and stronger.

Axillary Odor: Its Physiology, Microbiology And Chemistry

This article surveys recent reports on the physiology, microbiology and chemistry of axillary malodor, as well as the thresholds for perceiving various axillary odors.

Quantifying Sunscreens and Preservatives in Cosmetic Products

The authors propose and validate an HPLC method for simultaneous quantitation of commonly used commercial sunscreen actives and preservatives in cosmetic emulsions.

Refractive Index Matching: Principles and Cosmetic Applications

Clear emulsion formulas can be achieved by matching refractive indexes (RI) of water phase and oil phase. The match is achieved by varying the ratio of water and glycols, as show in several skin and hair care formulas.

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Cosmetics & Toiletries Formulary: Skin Health and Beauty

Anti-acne treatments, glow bronzer, retinoid serum, scalp care and more are among the concepts featured in this "Skin Health and Beauty Formulary."

Lead, Aluminum and Parabens: Myths in Cosmetics

Cosmetic companies comply with strict ingredient regulations and stay abreast of the latest scientific studies to ensure that their products are safe and efficacious. Yet, rumors still abound about cosmetic companies intentionally including toxic chemicals. This column looks into those myths, separating fact from fiction.

Bumble and Bumble spraychalk in lavender

Read the Label: Bumble and Bumble Spraychalk

One of the first mainstream temporary hair colors to come to market is the Bumble and Bumble's spraychalk. This product is a “wild, quick-dry tinted hairspray for a splash of color and style” that comes in various colors. This column will review the ingredient listing for functionality.

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Comparatively Speaking: Silicon Dioxide, Silicon and Silicone

This column is intended to provide an understanding of the relationships between these raw materials and the silicones found in personal care.

Lightening, Boosting and Protecting with Colorless Carotenoids

Phytoene and phytofluene (P&P) are carotenoids that are precursors in the biosynthetic pathway of other carotenoids. These materials occur naturally in microorganisms, algae and other plants and exhibit benefits for skin care including skin lightening, anti-inflammatory activity and protection against UV and oxidative damage, as is shown here.

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Cosmetics & Toiletries Formulary: Skin Health and Wellness

Caring for skin will always be a topic of conversation. This month's formulary focuses on next-gen solutions for skin health, well-being and the psyche.

Hair Ethnicity and Ellipticity: A Preliminary Study

Ethnic hair care addresses diverse fiber compositions that require unique products. This comprehensive review in hair fiber dimensions among straight, wavy and curly/coily hair serves as a basis from which product developers can design products to cater to unique hair type needs. The current study examines the ellipticity of Caucasian, Brazilian, Hispanic and African-American hair.

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