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In vivo

168

Predicting the Percutaneous Penetration of Cosmetic Ingredients

148

Evaluating 1,3-Propanediol for Potential Skin Effects

63

A High Throughput Method to Predict Skin Penetration and Screen Topical Formulations

52

Mechanisms of Tape Stripping and Protein Quantification

51

Enhancing, Measuring Skin Penetration

38

Comparison of Age Determination by Three Evaluation Methods: Self-assessment, Expert Grader and Naïve Grader

20

Shiseido Develops Method Using Spectrometry to Display Skin Permeation

17

Dihydroavenanthramide D for Anti-irritant and Anti-itch

15

Consumer Perception of Fine Lines and Wrinkles Assessed by Qualitative Methods

15

Using In vivo and In vitro Testing for Evidence-based Development of Anti-aging Ingredients

New in In vivo (page 3 of 6)

Oct 28, 2011 | 11:26 AM CDT

Lab Lessons—Wise Words From the Bench With Sergio Nacht, PhD

Sergio Nacht, PhD
By: Katie Anderson (Schaefer), Cosmetics & Toiletr…

Today, product formulation goes hand in hand with efficacy testing, but nearly 40 years ago, when Sergio Nacht, PhD, started out in the personal care industry, it was a different story. Throughout his decades in personal care, Nacht has developed methodologies that have allowed the personal care industry to establish efficacy of a product and convey this to the consumer. He has also been instrumental in the increased efficacy of personal care products through sustained release.

May 24, 2011 | 10:54 AM CDT

Benchmarking Study to Examine Shampoo, Conditioner Rinse Profiles

TRI/Princeton is offering a benchmarking study on the rinsing of shampoos and conditioners to allow manufacturers a lower cost option for product testing, as compared with individual tests.

Apr 06, 2011 | 10:53 AM CDT

Fluid Skin Imaging for Better Resolution

By: Katie Schaefer, Cosmetics & Toiletries magazin…

Noninvasive subcutaneous skin imaging is a tool sought for use by the medical, pharmaceutical and personal care industries, but techniques have been lacking due to resolution and speed constraints.

Feb 23, 2011 | 11:00 AM CST

Researcher Develops Probe for Non-invasive Below Skin Imaging

Jannick Rolland, PhD, an optics professor at the University of Rochester in New York, has developed an optical probe equipped with a liquid lens that takes images under the skin’s surface without the use of invasive procedures.

Mar 30, 2010 | 01:39 PM CDT

Predicting the Percutaneous Penetration of Cosmetic Ingredients

By: Sara Farahmand, PhD, University of Cincinnati …

While previous algorithms for predicting the skin absorption of permeants was based on in vitro data, the present article proposes a quantitative structure-activity relationship (QSAR) model based on in vivo human data. Here, a set of human in vivo data is described that provides entry into predicting the penetration of cosmetic ingredients.

Mar 16, 2010 | 05:21 PM CDT

Is Cosmetic Science Really "Bad"? Part IV: How Scientific is Cosmetic Science?

By: Johann W. Wiechers, PhD, JW Solutions

Six questions from Michael Shermer’s Baloney Detection Kit have been discussed in this series. The results were not flattering for cosmetic science (read: cosmetic scientists) but cosmetic science did not score badly on all points. Questions seven and eight, described here, discriminate true science from borderland science and non-science or nonsense.