Abstract
Hair is an important part of the body appeal and its look is a health indicator. Accordingly, recent advances in hair science and hair care technologies have been reported in literature claiming innovations and strategies for hair treatments and cosmetic products. The treatment of hair and scalp, primarily, involved the use of shampoo for an effective, but gentle cleansing; however, for years, the shampoo is considered not only as a cosmetic product having the purifying purpose, but it is also responsible for maintaining the health and the beauty of hair, imparting gloss and improving manageability. For meeting the needs of a multitasking formulation, following also the recent marketing-trend addressed to the "natural world", new challenges for cosmetic technology are aimed towards the research of natural ingredients, as well as new techniques for shampoo formulation. Regarding the recent development of solid shampoos, little information is available about their use, formulation and advantages. This review is largely focused on the description of solid shampoos, mainly based on the use of clays, herbs or flours as washing bases alternative to the traditional ones, consisting of a combination of synthetic surfactants, together with other usual ingredients expected in a shampoo formulation.
Highlights
As far back as ancient time, people use natural extracts and resources for health care and cosmetic purposes
Preethi et al [12] defined a shampoo classification, listing different types of products: powder on solid shampoo and herbal shampoo, reporting the main important information known in shampoo, liquid shampoo, lotion shampoo, solid gel shampoo, liquid herbal shampoo, solid cream literature [12] and the novelty introduced by a clay shampoo
This review focuses on hair care and technologies known in the cosmetics, highlighting the importance of shampoo in different form and formulations
Summary
As far back as ancient time, people use natural extracts and resources for health care and cosmetic purposes. Among the various advantages of solid shampoos in comparison with the traditional ones, it should be considered, for example, a longer life time and the property of being a handy product, so easy to transport This indicates that the associated costs, especially those related to the packaging, are lowered in accordance with the market and consumers’ requests. On this ground, in this review, the attention has been focused on the knowledge of hair care, discussing the important role of traditional shampoos and conditioners, compared with the solid ones. A brief discussion has been centered on the safety of these products with the related toxicological evaluation
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