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Recent in Delivery (page 4 of 6)

It's a Small World

This issue of Cosmetics & Toiletries magazine also looks within the nano-sized world to examine the benefits that tiny technologies can impart in personal care. Delivery is one benefit. While debate surrounds the depth to which they penetrate skin, nanomaterials are nonetheless believed by most experts to do so, to some degree.

Chitin Nanofibrils for Cosmetic Delivery

In the present article, the author explores the delivery capabilities of nanocrystal chitin nanofibrils. By establishing an ionic bond with water and forming complexes with various actives, this material can impart local or global activity and reach different levels of skin permeability to achieve variable cosmetic efficacy.

Taking Action

There sure is a lot of activity around actives—from regulatory scrutiny over functional product claims, to ingredient research, development, optimization and efficacy testing.

How the ‘Stuff’ in Formulations Impacts the Delivery of Actives

Formulations contain many ingredients that are vital for some important function, such as providing stability. However, what does this “stuff” do in terms of helping or (usually) hindering the delivery of the all-important active? And how much of the active is actually available to deliver? A few simple questions and measurements, described here, can provide a wealth of insight.

Structured Surfactant Systems for Deposition of Perfume on Skin and Hair

To maximize perfume delivery from structured cleansing formulations, the fragrance must be introduced before structuring the formulation into multilamellar vesicles. Structured formulations fragranced in such a way are shown here to improve perfume deposition and duration versus micellar systems, with no negative impact on perfume burst during use.

Structured Surfactant Systems for Deposition of Perfume on Skin and Hair

To maximize perfume delivery from structured cleansing formulations, the fragrance must be introduced before structuring the formulation into multilamellar vesicles. Structured formulations fragranced in such a way are shown here to improve perfume deposition and duration versus micellar systems, with no negative impact on perfume burst during use.

Water-soluble Phosphate Polymers in Bar Soap for Controlled Release of Antimicrobial Silver

This paper presents data on the antimicrobial performance of a silver ion-releasing phosphate polymer incorporated into a bar soap product. Two studies test the speed, efficacy and longevity of the antimicrobial effect, highlighting the potential of these materials for the controlled, sustained release of bioactive metal ions in cosmetic products.

Water-soluble Phosphate Polymers in Bar Soap for Controlled Release of Antimicrobial Silver

This paper presents data on the antimicrobial performance of a silver ion-releasing phosphate polymer incorporated into a bar soap product. Two studies test the speed, efficacy and longevity of the antimicrobial effect, highlighting the potential of these materials for the controlled, sustained release of bioactive metal ions in cosmetic products.

Ingredient Delivery and Efficacy

Binding is not a new phenomenon, but interest in it continues for improved ingredient delivery and efficacy.

Wise Words from the Bench with Jean-Jaques Étienne, PhD

Some might consider olfaction solely the job of perfumers, but Jean-Jaques Étienne, PhD, believes it to be the job of perfumers as well as formulators.

Improving Deposition From High-water Formulas Using Amphiphilic Polymers

Effective high-water skin care systems may play an important role in addressing emerging market consumer needs. The present study considers the challenges of such systems, particularly regarding the deposition of ingredients across water solubilities, and proposes an amphiphilic cationic polymer as one possible solution.

Soy-based Binder, Thickener and Emulsifier for Personal Care

DuPont has launched a soy-based multifunctional polymer for a variety of personal care applications from sun care to hair care.

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