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Type: Article
Section: Testing > Efficacy
Efficacy
Industry Insight: Testing the Most Efficient Color Shampoo/Conditioner Duos
In this "Industry Insight," Sabina Wizemann, senior chemist of the Health, Beauty and Environmental Sciences Lab at the Good Housekeeping Institute has evaluated shampoo and conditioner pairs to identify the best performers for hair dye retention. In a recent interview, she explained how she tests these products, analyzes their efficacy and claims, and which duos exemplified the highest efficacy, compared with other products.
Efficacy
Words from Wiechers: In the Land of the Blind, the One-eyed Man is King
"Regulatory bodies claim that everything should be tested against a placebo, but they should also learn to see there is a difference between fundamental science and applied science," the late Johann Wiechers, Ph.D., writes, in this month's column. He also explains blinded studies.
Sun Protection
‘Cleaning Up’ Sun Care: Natural Wax/Surfactant Blend for Sustainable Performance
Many clean beauty edicts emphasize the replacement of synthetic ingredients with sustainable and natural-derived materials wherever possible. Maintaining the same or better efficacy, however, poses a formulation challenge. This article explores the efficacy of multipurpose natural wax/surfactant blend to replace several traditional materials with one.
Efficacy
Lasting Impression: A Consumer-centric Approach to Measure Transfer-proof Lipstick
Described here is the development of a test method combining consumer input with instrumental measurements to assess the transfer-proof performance of lipsticks. Three lipsticks with varying transfer-resistance efficacy are then put to the test using this method.
Efficacy
Simple and Sensorial: Amino-modified Silicone Protects and Revives Hair
Multifunctional ingredients can simplify hair care routines by offering protection, performance and sensory benefits in one step. Herein, a terminal hydroxy amino-modified silicone is tested for its effects on hair breakage, drying time, wet and dry combing, colorfastness and more.
Consumers/Market
Industry Insight: Antibacterial Functionality Enters Hair Care
In this "Industry Insight," Lisa Marie Garcia (LMG), president of innovation, and Roy Joseph, Ph.D., chief scientific officer and vice president of R&D, both of Farouk Systems, discussed changes in the hair care market in light of the pandemic and their company’s antibacterial line. Following is an excerpt adapted from our discussion.
Testing
Soothing Moves:
Cannabis Sativa
Cell Culture Alleviates Inflammation
The field cultivation of hemp is tasked by today’s large-scale demand. Here, a
Cannabis sativa
cell culture extract is proposed as a sustainable alternative. After initial characterization, the extract was tested as described here for efficacy against inflammatory markers for skin-soothing activities.
Sensory
Testing Tactics in Skin: Keratinocytes as Sensory Nociceptors
Humans value senses of touch and warmth while enjoying their surroundings but pain and itch are also part of this experience. The present column explores Transient Receptor Proteins (TRPs), how they sense pain and itch, and their potential application in skin care and anti-aging products.
Efficacy
Words from Wiechers: Mediocre Mediocracy?
In this installment of our Words from Wiechers series, cosmetic scientists are reminded to not just perform proper science, but also to communicate the results properly and in the right context to avoid misinterpretation—and misinformation.
Literature/Data
[update] Comparatively Speaking: Matter vs. Mind Claims
This "Comparatively Speaking" was revived from 2008 for its relevance today. In it, Tony O’Lenick posed the question: What’s the difference between a "mind" claim and a "matter" claim? Industry expert Johann Wiechers, Ph.D., explained.
Efficacy
Calming the Storm:
Cannabis Sativa
Cell Culture Extract Eases Neurogenic Inflammation
The field cultivation of hemp is tasked by today’s large scale demand. Here, a
Cannabis sativa
cell culture extract is proposed as a sustainable alternative. Furthermore, after initial characterization, the extract was tested for efficacy against inflammatory markers for skin-soothing activities.
Efficacy
Words from Wiechers: What You Say is What You Get
This installment of "Words from Wiechers" explores what we see and say about cosmetic products, and cautions to not make “conclusions” that are simply that—conclusions, without underlying science.
Testing
Mitigating 'Maskne:' Boldo to Balance Sebum, Bacteria and Redness in Acneic Skin
Peumus boldus
(boldo) extract was tested for effects on sebum production,
S. aureus
growth and
C. acnes
lipase activity in vitro, as well as on skin redness in vivo. This work aimed to develop a natural ingredient to control sebum, inhibit microbes and their activity, and reduce redness in acne-αfflicted skin.
Testing
Omni Antioxidant: Acetyl Zingerone Scavenges/Quenches Reactive Species, Selectively Chelates Iron
Daily exposure to environmental stress keeps skin under a persistent burden from excess ROS. This drives premature skin aging. The present article explores the multiple effects of a single ingredient, acetyl zingerone, to proactively manage excess ROS production via chemical and physical paths.
Efficacy
Words from Wiechers: Is Cosmetic Science Really 'Bad'?
In this month's "Words from Wiechers" series, we learn about a metric to evaluate cosmetic science and related claims: The Baloney Detection Kit.
Skin Care
Pneuma Nitric Oxide-generating Serum Shown to Improve Acne and Scarring
A pilot study published in the
International Journal of Pharmaceutica Analytica Acta
describes how a topical nitric oxide-generating serum reduced active pustules, comedones and scarring by reducing inflammation and keratinization in acne.
Efficacy
Words from Wiechers: Cosmetic
Idols
In this month's "Words from Wiechers" series, we learn that while proper branding and marketing are a prerequisite for initial success, it is the consumer experience and satisfaction that will drive resale and ultimate success of a product.
Method/Process
Testing Tactics in Hair: Beyond Biology—Why African Hair is Fragile*
The remarkable shape of African hair can lead to a variety of issues for the wearer. High on this list is a marked propensity for breakage, and efforts to minimize this result in unique hair-related habits and practices. This article describes recent measurement advances that shed much needed light on the reasons for these issues.
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