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- Delivery (150)
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- Feel Enhancer (172)
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- UV Filter (104)
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New in Function (page 2 of 51)
Mar 26, 2013 | 05:54 PM CDT
Structured Surfactant Systems for Deposition of Perfume on Skin and Hair
By: Caroline Mabille, PhD, Rhodia Aubervilliers Re…
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.
Mar 26, 2013 | 04:24 PM CDT
Water-soluble Phosphate Polymers in Bar Soap for Controlled Release of Antimicrobial Silver
By: David M. Healy, Giltech Ltd., Ayr, U.K.
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.
Mar 05, 2013 | 11:35 AM CST
T-shaped Siloxane Microemulsion for Improved Hair Conditioning and Protection
By: C. Hartung, PhD; U. Kortemeier; U. Westerholt;…
Described here is a T-shaped cationic siloxane incorporated in a microemulsion to provide a high silicone character material with balanced solubility and high hair substantivity. Wet and dry combability and hair feel were evaluated by panelists, while combing force measurements and differential scanning calorimetry measured conditioning and heat protection, respectively. Color washfastness also was tested using a spectrophotometer.
Mar 05, 2013 | 11:02 AM CST
Formula Anatomy Deciphered—Lip Balms
By: Luigi Rigano, PhD, Studio Rigano Industrial Co…
Lip balms or salves constitute a special category of protecting and soothing cosmetics. They are intended to be applied to the lip pseudo-mucosa to relieve the signs and symptoms of skin dryness and chapping. Their function and formulation are described here.
Mar 05, 2013 | 10:31 AM CST
A Dermatological View—Innovations in Hyaluronic Acid
By: Howard I. Maibach, MD, University of Californi…
HA is critically important to dermatologists and to cosmetic scientists, as it maintains the moisture in skin, and loss of accessible HA results in wrinkling and changes associated with aging. Replacement of such HA is the goal of many cosmetic and cosmeceutical techniques and reagents.
Feb 01, 2013 | 02:58 PM CST
The Effect of Skin Metabolism on the Absorption of Chemicals
By: Alain Mavon, PhD, and Carine Jacques-Jamin, Ph…
Skin expresses enzymes that can metabolize endogenous molecules but little is known regarding how they impact the delivery of xenobiotics. This review of recent works shows that skin metabolism alters the dermal absorption of lipophilic compounds, which opens new areas of investigation regarding the safety and efficacy of topically applied cosmetics.
Feb 01, 2013 | 02:54 PM CST
Penetration of Cosmetics Into and Through the Stratum Corneum
By: Ada Polla, Alchimie Forever
The penetration routes of substances through the stratum corneum and how these transport pathways function are becoming better understood. Despite this progress, however, the penetration mechanisms of cosmetic formulations remain mysterious. This overview presents current knowledge on the various pathways of penetration, and suggests that even if cosmetic formulations penetrate no deeper than the surface, their efficacy may still be optimal.
Feb 01, 2013 | 02:43 PM CST
How the ‘Stuff’ in Formulations Impacts the Delivery of Actives
By: Steven Abbott, PhD, Steven Abbott TCNF Ltd. an…
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.
Feb 01, 2013 | 02:38 PM CST
Development of a Novel, Soothing Tissue Incorporating Phase-change Materials
By: Jeffery R. Seidling; Scott W. Wenzel; Corey C…
Frequent and repetitive tissue use can lead to inflammation of the nasal area. While technologies were already marketed to help minimize and prevent further irritation, none had targeted the heat and redness associated with an already inflamed nose. This presented a market need but several formulating challenges. Described here are the steps taken to find a practical solution to these challenges.
Feb 01, 2013 | 02:28 PM CST
Formula Anatomy Deciphered—BB Creams
By: Luigi Rigano, PhD, Studio Rigano Industrial Co…
BB stands for “blemish balm” in Asia or “beauty balm” in some parts of Europe. It is defined loosely as a product that combines serum, moisturizer, base cream, foundation and sunscreen in one.