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Section: Formulas/Products > Hair Care
Method/Process
Assessing the Impact of Hair Damage Types on Color Retention
This article reviews and assesses damage types caused to hair before and after artificial coloration, i.e., by bleaching, perming, heat treatment, UV exposure and shampooing, to compare how they impact color durability individually and combined. Formulation emerges as the key to designing shampoos that efficiently deliver actives to improve color protection against these and other damage types.
Sensory
The Perplexing Topic of Hair 'Type': How Do We Classify Hair?
Most hair-related properties and issues can be rationalized by fiber size and shape, and/or the consequences of extreme conditions. However, the varying reactivity of different hair types with chemical treatments suggests potential differences in structure.
Method/Process
Assessing the Impact of Hair Damage Types on Color Retention
This article reviews and assesses damage types caused to hair before and after artificial coloration, i.e., by bleaching, perming, heat treatment, UV exposure and shampooing, to compare how they impact color durability individually and combined. Formulation emerges as the key to designing shampoos that efficiently deliver actives to improve color protection against these and other damage types.
Literature/Data
Comparatively Speaking: O/W, W/O, Micro, Pickering and Suspo Emulsions
In this installment of his "Comparatively Speaking" series, industry expert Tony O'Lenick compares emulsion types for the benefit of novice formulators.
Sensory
Tara Gum for Emulsion Thickening and Texturizing
Seppic has launched a thickening and texturizing polymer that is 100% plant-derived.
Moisturizing
Silicone Emulsion for Hair Styling and Conditioning
Dow Corning has launched an amino silicone elastomer emulsion for leave-in conditioners and hair styling products that combines hair styling with conditioning benefits.
Literature/Data
Patent Pick: α-Gel Intermediate and O/W Emulsion
Patent Picks are chosen by the editors from publicly available sources. Today's invention, from Shiseido, relates to an α-gel intermediate and its use to create stable o/w emulsions that do not require a cooling device.
Cosmetic Ingredients
PIT Versus PIF for the Rational Formulation of Emulsions
This article deliberately pushes the boundaries for cosmetics scientists, showing how the much-used phase inversion temperature (PIT) technique is a limiting special case of a more versatile, rational approach to surfactant optimization: HLD-NAC. This simple way of understanding the basic interactions within emulsion formulations can be generalized to create totally new ways of formulating stable emulsions.
Cosmetic Ingredients
PIT Versus PIF for the Rational Formulation of Emulsions
This article deliberately pushes the boundaries for cosmetics scientists, showing how the much-used phase inversion temperature (PIT) technique is a limiting special case of a more versatile, rational approach to surfactant optimization: HLD-NAC. This simple way of understanding the basic interactions within emulsion formulations can be generalized to create totally new ways of formulating stable emulsions.
Moisturizing
Silicone Amino Elastomer Emulsion for Conditioning and Styling Performance
A nonionic emulsion based on silicone amino elastomer technology enhances hair conditioning and styling, as demonstrated in tests of combing force, curl retention, sensory characteristics, thermal protection and frizz control.
Method/Process
Zeta Potential and Particle Size to Predict Emulsion Stability
Emulsions are popular vehicles in skin care due to their affinity for the skin; however, they are thermodynamically unstable systems. This study investigates zeta potential and particle size distribution as potential screening tools to predict instabilities in emulsion-based cosmetic products, to supplement regular accelerated stability testing.
Hair Care
Dove and P&G Experts on the Hair Bonding Buzz—Plus 3 Main Types
The hair bond builder or "multiplier" market is expected to expand at a CAGR of 7.80% from 2021 to 2028. Here, Dove and P&G experts help us explain why and explore the three main types of bonding agents.
Literature/Data
Study Finds Sustainable Thermoresponsive Whey Protein- and Chitosan-based O/W Emulsion Possibilities
In this study, the biopolymers whey protein and chitosan were used to create a thermoresponsive emulsion. The impact on rheological properties with chitosan and specific oils, as well as response to temperature, were investigated.
Methods/Tools
Comparatively Speaking: Ten Cosmetic Formula Types
Cosmetic formulas include solutions, creams/emulsions, lotions, ointments/pastes, suspensions, tablets, powders, gels, sticks and aerosols. Here, Tony O'Lenick turns to Perry Romanowski to discuss their differences.
Literature/Data
Silica Nanoparticles Stabilize Biocompatible Pickering Emulsions
Research pre-published online in
Colloids and Surfaces A: Physicochemical and Engineering Aspects
explores the stability of biocompatible oils in Pickering emulsions.
Literature/Data
Comparatively Speaking: Emulsion vs. Colloid
Industry expert Anthony O'Lenick, Jr., explains the different between an emulsion and a colloid.
Rheology/Thickener
Improving Dispersion in Gels/Emulsions with Granulated Carbomer
Evonik Goldschmidt GmbH has introduced a granulated carbomer to improve dispersion in cosmetic or pharmaceutical emulsions and gels.
Actives
Designing Emulsions for Relaxer Actives
Relaxer emulsions have unique requirements regarding pH, hydrophilic-lipophilic balance and minimizing irritation potential. This article suggests ways to meet these requirements and provide an ideal emulsion base for relaxer actives.
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