Recent in Function (page 40 of 40)

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,4 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.

iKeda Introduces Oil-based Color Beads for Lipsticks

iKeda Corp. has launched a line of oil-based pigmented beads for the production of lipsticks.

Croda Adds Rheology Modifier to High Oil/Silicone Creams

Croda has added a rheology modifier to its ViscOptima range that can emulsify and stabilize high levels of oils and silicones in a formulation.

Nanoemulsions vs. Emulsions in the Delivery of Coenzyme Q10 and Tocopheryl Acetate

This article compares the ability of mixed emulsifier nanoemulsions and polysorbate 60 emulsions to deliver coenzyme Q10 and tocopheryl acetate into the skin. In vitro skin penetration data shows that in newborn pig skin, nanoemulsions can deliver higher amounts of both actives than emulsions.

Sodium Laurylglucosides Hydroxypropyl Sulfonate for Sulfate-free Formulations

The use of sulfonated alkyl polyglucosides (SAPG) to replace lauryl sulfates and lauryl ether sulfates in sulfate-free formulations has previously been discussed. These primary surfactants were created with environmental and human safety in mind. The current paper describes more recent work with this material, specifically focusing on the lauryl version of SAPG.

Profile of Polyquaternium-7

Last month’s “Ingredient Profile” column reviewed polyquaternium-6 (PQ-6), the cationic homopolymer of diallyldimethylammonium chloride (DADMAC). In relation, this month’s column examines its cousin, polyquaternium-7 (PQ-7), one of the most widely used and cost-effective conditioning polymers for personal care applications.

Evonik Launches Color Cosmetic Emulsifier and Viscosity Enhancer for Cleansers

Evonik has introduced two new raw materials: a polyacrylic acid copolymer rheology modifier for mild cleansing and a silicone-based emulsifier for w/o color formulations.

Symrise Introduces Algae Extracts for Hair Thickening and Self-tanning

Symrise has introduced two algae extracts, one designed to prevent hair loss, strengthen hair and make it thicker, while the other serves as a dual-action self-tanner for face and body.

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