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In vitro
New in In vitro (page 13 of 14)
May 06, 2003 | 02:00 AM CDT
Using Tissue Engineered Skin to Eveluate the Irritation Potential of Skin Care Products
By: Bart De Wever and Véranne Charbonnier
Using tissue engineered skin to evaluate the irritation potential of skin care products.
May 06, 2003 | 02:00 AM CDT
The Safety Factor in Preservative Efficacy Testing
By: Donald S. Orth, Neutrogena; David C. Steinberg…
The authors explain how preservative efficacy testing is done to determine whether a formula is adequately preserved. Product contamination problems are frequently caused by inadequate preservation.
May 06, 2003 | 02:00 AM CDT
Cosmetic Testing in 2000 and Beyond
By: Johann W. Wiechers, PhD, Uniqema
Changes in cosmetic testing are being driven by regulation and advanced technologies, such as new in vitro methods, molecular combinational chemistry and skin delivery. Part of the Series: From Test to Claim.
May 06, 2003 | 02:00 AM CDT
Dermagenetics
By: James V. Gruber and Kevin O'Brien, Arch Person…
The advent of the complete transcribing of the human genome will forever alter our perceptions of skin care, medicine and nutrition. This column is edited by Lawrence A. Rheins, PhD.
May 06, 2003 | 02:00 AM CDT
Flexabrasion: A Method for Evaluating Hair Strength
By: J. Alan Swift, Developmental Toxico-Pathology …
Both bending and abrasion should be tested—along with extension—when evaluating hair strength, as the authors show in tests of a new active for increasing the strength of bleached hair.
May 06, 2003 | 02:00 AM CDT
Comparing Methods to Measure Porcine Skin Integrity In Vitro
By: S. Richert, A. Schrader and K. Schrader, Insti…
To confirm the integrity of porcine ski prior to penetration tests, published studies show that measuring transepidermal water loss, transdermal electrical resistance or caffeine penetration levels are often chosen techniques. New results demonstrate that
May 06, 2003 | 02:00 AM CDT
Properties of a Pseudoceramide Multi-Lamellar Emulsion In Vitro and In Vivo
Byeong Deog Park and Yoon Kim, NeoPharm; MyungJin …
Tests of a pseudoceramide multi-lamellar emulsion formulation for its stability and its assistance to barrier recovery in vivo on damaged skin suggest dermatologic and cosmetic possibilities.
May 06, 2003 | 02:00 AM CDT
Preservative Efficacy Testing of Aqueous Cosmetics and Drugs without Counting Colonies
By: D.S. Orth and K.S. Delgadillo Eck, Neutrogena …
A miniaturized system using broth enrichment followed by either streaking on agar or fluorescence treatments can eliminate colony counting in the linear regression method of preservative efficacy testing.
May 06, 2003 | 02:00 AM CDT
ATP Bioluminescence: Detecting Microbial Contamination in Dentifrices
By: Luis Jimenez, Consumer Product Testing Co.
In tests on eight dentifrice formulations, a bioluminescence system based on adenosine triphosphate (ATP) detected tested microorganisms qualitatively within 24-27 hours, compared to 5-7 days required for quantitative detection by standard methods.
May 06, 2003 | 02:00 AM CDT
Evaluating Shine on Hair
By: Randy Schueller and Perry Romanowski, Alberto-…
Marketing research studies have shown that shine is one of they key benefits that women expect from hair care products, particularly from shampoos and conditioners. This article defines shine in the context of hair care and discusses ways to measure it.