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In vivo
New in In vivo (page 1 of 4)
May 04, 2012 | 02:17 PM CDT
Substantiating Skin Care Claims
Evalulab will discuss its clinical testing services specializing in the safety and efficacy of skin care products, to root product claims in science.
Oct 28, 2011 | 11:26 AM CDT
Lab Lessons—Wise Words From the Bench With 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.
May 02, 2011 | 02:12 PM CDT
Noninvasive Techniques for Anti-cellulite Product Efficacy Evaluation
By: K. Bazela, PhD; R. Debowska, PhD; B. Tyszczuk;…
Although cellulite is not considered a disease, it is a significant cosmetic problem for many post-adolescent women. Recent studies using new diagnostic techniques such as ultrasound imaging can define the cellulite-reducing efficacy of cosmetics. However, there is still a need to standardize and objectify the testing procedures and to find parameters to measure anti-cellulite efficacy.
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.
Mar 02, 2011 | 03:58 PM CST
Interpretation of SPF In vivo Results: Analysis and Statistical Explanation
By: Marc Pissavini and Olivier Doucet, Coty-Lancas…
Methods for determining SPF in vivo are based on a biological response by human skin. To overcome intrinsic variation in these methods, large numbers of volunteers and statistics are required; however, these concepts are often poorly understood or worse, misinterpreted. This article discusses how these values should be interpreted and explains what they mean to formulators.
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.
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Jul 14, 2010 | 09:25 AM CDT
Tools to Predict, Assess and Standardize Successful Color Cosmetics
Cosmetic companies have borrowed quality control methods from other industries that have product attributes such as color, gloss and texture down to a science. Specialized in such areas, X-Rite has developed tools to enable cosmetic companies to predict future color trends as well as set standards by which future cosmetics will be benchmarked.
Apr 30, 2010 | 12:40 PM CDT
Evaluating 1,3-Propanediol for Potential Skin Effects
By: Leigh A. Belcher, Carl F. Muska, PhD, and Jose…
In the present article, the authors assess the skin irritation and sensitization potential of 1,3-propanediol (INCI: Propanediol). Results in animals and humans by acute or repeat exposure support a low potential of skin reactivity for the material. In addition, the skin reactivity potential in humans was found to be lower with 1,3-propanediol than 1,2-propanediol (INCI: Propylene Glycol).
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.