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Recent in Function (page 40 of 40)

The Importance of Formaldehyde-Donor Preservatives in Personal Care Products

Preservatives are critical ingredients in personal care products and cosmetics, where they help to ensure consumer safety as well as product performance and stability. Among these materials, formaldehyde-donor (FD) preservatives have demonstrated a long history of safe and effective use for controlling microbial growth.

Smart Materials for Triggerred Release of Cosmetics

Smart polymers can be engineered to contain reactive molecules, commonly dubbed “molecular switches,” that respond to external stimuli and cause systemic changes to the polymer structure. The specificity of a molecular switch to a single stimulus is critical for controlled release, although multi-triggered systems capable of responding to systematic stimuli are being developed for advanced applications. Herein the authors describe several stimuli-responsive materials that have potential applications for personal care and related biomedical fields.

Propanediol and Polylysine Alternative Preservation

DuPont Tate & Lyle Bio Products Company LLC has partnered with RML Inc. to launch PolyGuard, a new line of alternative preservatives that combine polylysine with DuPont Tate & Lyle's Zemea propanediol as a preservation booster.

A Hydrophilic Silicone Elastomer for Broader Formulating Flexibility

Silicone elastomers for personal care have evolved from cross-linked silicone polymers in silicone fluid carriers, to materials with broader organic compatibility in organic solvents. Recently, hydrophilic properties have been added, which are shown here to enable the incorporation of high levels of water, polar solvents and actives while maintaining organic compatibility and unique sensory characteristics.

Seppic Launches Rheology Modifier for Clear Cleansing

Seppic has expanded into the personal hygiene market with the launch of its new rheological modifier Eliclear 4U (INCI: Acrylates Copolymer).

Therapeutic Peptides in Aged Skin

Here, published work on peptides and proteins, their characteristics, and randomized efficacy data are examined.

Surfactants and Cleansing Products

Today, cleansing products are available in solid bar, liquid and gel forms and can be based on alkaline salts and synthetic and natural surfactants. When substituted for alkaline salts, synthetic and natural surfactants improve the foam structure and mildness of formulas.

An Herbal Blend for Antiaging Effects: TCM in Personal Care

A combination of Chinese herbs is shown here, by gene array analysis, to stimulate the skin’s resistance against free radicals, oxidative stress and toxic molecules, while also reducing extracellular matrix degradation. The extract also is shown to help against skin irritation in vivo.

Clinical Relevance of Topical Active Delivery Systems in Cosmetics

Depending on a drug or cosmetic ingredient’s intended target, topical delivery systems are broadly categorized as either transdermal drug or dermal drug/cosmetic. Transdermal drug delivery (TDD) is the controlled release of drugs through intact skin to obtain therapeutic levels systematically and to affect specified targets for specific purposes such as contraception, among others.

Nanotechnology and Skin Delivery: Infinitely Small or Infinite Possibilities?

Nanoparticles have been defined as single particles with a diameter less than 100 nm, which includes titanium dioxide in transparent, inorganic sun care products, and is usually extended to 200 nm to include the zinc oxide in those products. But nanoparticles are only a subset of nanomaterials, which can also include cyclodextrins and liposomes.

BASF Uses Brown Seaweed Extract to Address Undereye Circles/Crow's Feet

BASF has created a seaweed extract that reduces the appearance of dark undereye circles and crow's feet.

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