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Type: Article

Section: Cosmetic Ingredients > Moisturizing

Silicone Amino Elastomer Emulsion for Conditioning and Styling Performance

A nonionic emulsion based on silicone amino elastomer technology enhances hair conditioning and styling, as demonstrated in tests of combing force, curl retention, sensory characteristics, thermal protection and frizz control.

To produce a stable emulsion, an emulsifying agent can be added to the oil and water that will either act as a barrier to alter the droplet coalescence rate, or create an interfacial film that can produce repulsive electrical forces between approaching droplets.

Zeta Potential and Particle Size to Predict Emulsion Stability

Emulsions are popular vehicles in skin care due to their affinity for the skin; however, they are thermodynamically unstable systems. This study investigates zeta potential and particle size distribution as potential screening tools to predict instabilities in emulsion-based cosmetic products, to supplement regular accelerated stability testing.

Liquid Crystals in O/W Emulsions with Urea: Development and Testing

Using a ternary phase diagram, the authors developed systems based on nonionic surfactants, light paraffin oil, water, and (optionally) urea. Systems in which lamellar liquid crystals formed and in which urea was an ingredient showed higher occlusive power and lower TEWL in in vitro tests.

O/W Emulsions Enriched with Vitamin E

Vitamin E has an important protective function for the entire organism. It is believed that the broad biological activities of vitamin E are due to its ability to inhibit peroxidation and stabilize biological membranes.

Metabolism and Modulation of Hyaluronan Levels in Skin

This is the last in a series of articles that review the literature on hyaluronan, which also sometimes goes by the name hyaluronic acid.

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Benefits of Sustainable and Organic Candelilla in Cosmetics

Discover the benefits of organic candelilla wax in beauty products. From moisturize and create a protective layer to provide shine and consistency, this sustainable alternative is a game-changer. Meet Multiceras' commitment to responsible extraction.

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Ensure the Consistency and Quality of Your Products

Particle size distribution can have a major effect on the characteristics desired for a given application or objective, or on the performance and quality of a final product. Shimadzu’s multi-purpose SALD-2300 particle size analyzer provides the accuracy and reproducibility needed for QA and R&D applications related to lipstick, conditioners, creams and other cosmetics.

The Syngeristic Anti-irritant Effects of (-)-α-Bisabolol and Ginger

Damaged skin often is associated with increased levels of interleukin-1 (IL-1) and/or prostaglandin E2 (PGE2). In the present study, researchers combined (-)-α-bisabolol, a potent IL-1α inhibitor, with ginger extract, an efficient PGE2 inhibitor. The synergistic anti-irritant efficacy of this mixture was shown in vivo on detergent-induced erythema.

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Advances in Stratum Corneum Biology and Understanding of Dry Skin

During the last decade there has been tremendous advancement in our understanding of not only the structure, composition and function of the stratum corneum, but also in its formation and the epidermal differentiation factors responsible for mediating cellular changes in keratinocytes during their journey from the basal layer to the granular layer.

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Performance and Sensorial Benefits of Cationic Guar in Hair Care Applications

Cationic guars have demonstrated ability to manage the surface of the hair. This article discusses their physico-chemical properties, their hair conditioning and repairing properties, and their impact on foam sensorial aspects.

Isosorbide Dicaprylate: A Modulator of Biochemical Pathways Linked to Water and Barrier Homeostasis

Water homeostasis in the epidermis is essential for the normal function of the skin and for normal stratum corneum (SC) hydration. The discovery of the existence of the water-transporting protein aquaglyceroporin-3 (AQP3) in the viable epidermis and the presence of tight junction structures at the junction between the stratum granulosum and SC have brought new insights into the mechanisms of skin hydration, water distribution and barrier function.

A Review of Anti-irritants, Part II: Moisturizer, Anti-irritant Efficacy and Overall Interpretation*

his column is the second of a two-part series about anti-irritants. Part I appeared in the March 2011 issue and covered anti-irritants, irritant reaction and barrier cream efficacy. The present column summarizes the efficacy of moisturizers and anti-irritant substances and provides an overall interpretation.

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Using In vivo and In vitro Testing for Evidence-based Development of Anti-aging Ingredients

The need for a conceptual approach to skin aging, the need to combine in vitro and in vivo findings and the new direction for cosmetic ingredient manufacturers are discussed here.

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Using In vivo and In vitro Testing for Evidence-based Development of Anti-aging Ingredients

The need for a conceptual approach to skin aging, the need to combine in vitro and in vivo findings and the new direction for cosmetic ingredient manufacturers are discussed here.

The Effect of Glycerol on the Water-holding Capacity of Chemically Irritated Skin*

Glycerol is one humectant commonly employed due to its high hygroscopic and hyperosmotic properties. It is used in cosmetics as a moisturizer and in pharmaceutical formulations as an active compound.2 Being naturally present in the skin, glycerol was quickly identified for its role in skin hydration, similar to natural moisturizing factors (NMF).

Patent Picks—Hair and Eyelash Growth, Fixatives, Surfactants and More

Chosen biweekly by Rachel Grabenhofer, Cosmetics & Toiletries magazine editor, for their relevance to personal care, Patent Picks are taken from publicly available sources. This edition features recently issued patents relevant to hair care, styling and growth.

Bruise Amelioration and Skin Benefits from Glycerin and Triglyceride

Ameliorating the appearance of bruises can be accomplished by combining glycerin and triglyceride in a skin care formulation that functions both as a humectant and occlusive agent, as described here.

Bench and Beyond: Correlating Water Contact Angles and Moisturization/Sensory Claims

While staff that normally writes the Bench & Beyond column is taking some time off, this space offers an article by Olga V. Dueva-Koganov, B. Scott Jaynes, Colleen Rocafort, Shaun Barker and Jianwen Mao at Ciba Specialty Chemicals Corporation in Tarrytown, N.Y., USA.

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