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Section: Testing > Microbiology
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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.
Jun 1st, 2021
In the case of fluctuating PET results for w/o products, it can be useful to increase the number of samples to verify the results.
Determining Preservative Efficacy in W/O Formulas, Part II: Making Microbiological Safety Assessments
The relevance of microbiological tests for w/o formulas has been questioned, mandating a more holistic approach. This second article in a series examines the failure rate of PETs for w/o products but looks at why this does not mean insufficient stability.
Oct 5th, 2022
young Black woman pigtails holding products surprised
Safety Alerts: Drunk Elephant's 'Mix-up,' 285 European Cosmetics with Banned Ingredients, Dynarex Extended Recall
This round-up highlights recent cosmetic safety alerts/recalls. These include: Drunk Elephant's ingredient "mix-up," ECHA's findings that 6% of ~4,500 cosmetics reviewed contained banned ingredients, and Dynarex's recall extension over possible asbestos.
Nov 21st, 2024
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