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The Polish market of cosmetics is highly rich in different types of hair care preparations. A great number of Polish and foreign cosmetic companies and brands mean that finding care products ideal for a given person should be trouble-free. Unfortunately, a wide selection is both an advantage and a problem when a customer is doubtful about how a given cosmetic can work and what an individual’s hair really needs. Reading the composition of cosmetics, the potential user can recognize the needs of their skin or hair, which affects taking more conscious care and choosing the right cosmetics with more attention. This article assesses which ingredients and types of ingredients are present in the largest number of preparations and in the highest positions in the composition. This is a comparison of ingredients present in the largest amounts between four groups of hair cosmetics: care products with washing properties (shampoos), care products without washing properties (conditioners), preparations that are aqueous solutions (water cosmetics), and preparations that are not aqueous solutions (waterless cosmetics). It was revealed that the vast majority of all high-ranking ingredients are substances responsible for the functionality of hair cosmetics: surfactants, rheology regulators, substances responsible for foaming properties, emulsifiers, and solvents. The huge number of substances that can be used in hair products imposes the fact that the ingredients of the highest rank will be substances with many applications and, at the same time, are those that form the base of the cosmetic. Full article

Coronavirus disease (COVID-19) cases are continuing to rise around the world, with more than 607 million confirmed cases and more than 6.51 million deaths as of September 2022. The World Health Organization (WHO) has emphasized the importance of hygiene in the ongoing COVID-19 pandemic, especially in elderly and bedridden patients. The use of no-rinse shampoo represents a simple change in hair-cleansing products. Daily hospital hair washing for the elderly, bedridden, and ICU patients would be more readily adopted. The objective of this study was to design and optimize a new no-rinse shampoo based on electrochemically reduced water (ERW) using response surface methodology. The relationship between coconut-based surfactant mixtures in a no-rinse shampoo and the resulting physicochemical properties, effectiveness (antibacterial and antifungal activity), and stability of the shampoo was investigated. The vesicle size, size distribution, zeta potential, conductivity, pH, foamability, wetting time, turbidity, and stability of the model formulation were optimized. The optimal formulation with the appropriate physicochemical properties and stability was selected. The effectiveness of the optimal formulation was compared to that of commercially available products. The dry shampoo (DS4) containing 3.5% of the mixed detergent with ERW may prevent infection by Escherichia coli, Staphylococcus epidermidis, Staphylococcus aureus, and Candida albicans. The no-rinse shampoo based on ERW successfully demonstrated good stability in addition to efficacy in terms of antibacterial and antifungal activity. The treated hair fiber was not significantly different from that of the intact hair fiber. Under the scanning electron microscopy (SEM) and the atomic force microscopy (AFM), the cuticle layer of the treated hair fiber was not damaged. Thus, no-rinse shampoos may reduce the time of hair rinsing and improve the quality of life of caregivers. Full article