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Hair Care
New in Hair Care (page 1 of 12)
May 06, 2013 | 01:10 PM CDT
Testing Tactics—Consumer vs. Scientific Language: Relating In vivo to In vitro
By: Trefor Evans, PhD, TA Evans LLC
It should perhaps go without saying that consumer products are sold using consumer language. Market researchers and consumer scientists spend a great deal of time studying their target audience and learning this vocabulary, which subsequently allows the recounting of product benefits in the same terminology.
Apr 04, 2013 | 01:20 PM CDT
Hair Ethnicity and Ellipticity: A Preliminary Study
By: Ali N. Syed, PhD; Tomas N. Ventura Jr.; and Ma…
Ethnic hair care addresses diverse fiber compositions that require unique products. This comprehensive review in hair fiber dimensions among straight, wavy and curly/coily hair serves as a basis from which product developers can design products to cater to unique hair type needs. The current study examines the ellipticity of Caucasian, Brazilian, Hispanic and African-American hair.
Apr 01, 2013 | 02:22 PM CDT
PEG-2 Caprylylamine: A New Adjuvant Surfactant to Boost Lather Rate
By: Shou Ooshida, Kawaken Fine Chemical Co., Ltd.
PEG-2 caprylylamine, when used as an adjuvant surfactant formulated in a basic cleanser, can significantly increase lathering rate, as sensory evaluations, dynamic and static surface tension measurements, and the Ross-Miles method show here. Mechanisms of action for this new field of research also are discussed.
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 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.
Feb 01, 2013 | 02:51 PM CST
A Dermatological View—Interpreting Placebo Response in Clinical Trials for Psoriasis
By: Howard I. Maibach, MD, University of Californi…
By comparing response rates of placebo versus active drug groups in psoriasis RCTs evaluating biologic agents, the authors of this column sought to clarify factors contributing to placebo responses and their implications in improving clinical trial design to determine more accurate drug efficacies.
Jan 04, 2013 | 12:15 PM CST
A Dermatological View—Scalp Irritation From Hair Care Chemicals
By: Hongbo Zhai, MD, and Howard I. Maibach, MD, Un…
While scalp irritation also can be caused by contact with physical or biological agents, this column will discuss the irritation resulting from hair chemicals. The desire for a specific hairstyle or color can render the scalp exposed to different hair chemicals that may result to scalp irritation.
Dec 04, 2012 | 11:30 AM CST
Formulating With Naturals—Hair Conditioning
By: Art Georgalas, Georgalas Endeavors
This column proposes that the current natural and organic hair conditioner market can de divided into two types—those that are effective but use technology considered suspect under most natural certifications, i.e., “greenwashed,” and those that are more compliant with natural and organic certification but are found by consumers to have performance gaps
Nov 01, 2012 | 03:20 PM CDT
Formula Anatomy Deciphered—Hair Relaxers and Straighteners
By: Luigi Rigano, PhD, Studio Rigano Industrial Co…
Many products currently on the hair care market relate to a woman’s attempt to partially or completely modify her curly, frizzy and tangled hair. Hair straightening and hair relaxing formulations have been invented to achieve the desire for straight hair.
Aug 15, 2012 | 01:07 PM CDT
PIT Versus PIF for the Rational Formulation of Emulsions
By: Steven Abbott, PhD, Steven Abbott TCNF Ltd. an…
This article deliberately pushes the boundaries for cosmetics scientists, showing how the much-used phase inversion temperature (PIT) technique is a limiting special case of a more versatile, rational approach to surfactant optimization: HLD-NAC. This simple way of understanding the basic interactions within emulsion formulations can be generalized to create totally new ways of formulating stable emulsions.