Abstract
Due to the growth of the cosmetics industry, developments and improvements are needed for the productive sector and its products to meet consumer demand and the quality standards imposed by inspection bodies. As a result, an area has developed to meet these needs that is known as phytocosmetics. This area involves the inclusion of constituents with of plant origin in the cosmetic product formulation. The objective of this work was to compare the formulations of lip moisturizers incorporating oleoresins and essential oils of cinnamon (Cinnamomun verum), in addition to testing the microbiological safety and the Accelerated and Extended Stability of the formulated products. The tests revealed that the proposed formulations are microbiologically stable and safe, which is due to the antimicrobial activity of the oleoresin and cinnamon essential oil used in the formulations.
Highlights
A cosmetic is defined as any substance or preparation intended to be placed in contact with the various external parts of the human body or with the teeth and mucous membranes of the oral cavity, with the purpose of modifying their appearance, correcting body odour and/or protecting them by keeping them in good condition
The tests revealed that the proposed formulations are microbiologically stable and safe, which is due to the antimicrobial activity of the oleoresin and cinnamon essential oil used in the formulations
Antimicrobial activity of the cinnamon oleoresin and essential oil: Cinnamon oleoresin and essential oil inhibited entirely the growth of the microorganism tested. These results are important to verify if it is necessary a high antimicrobial activity to be used in a cosmetic product to inhibit the growth of pathogenic microorganisms
Summary
A cosmetic is defined as any substance or preparation intended to be placed in contact with the various external parts of the human body (epidermis, capillary system, nails, lips and external genital organs) or with the teeth and mucous membranes of the oral cavity, with the purpose of modifying their appearance, correcting body odour and/or protecting them by keeping them in good condition. Cosmeceuticals are intended to perform their functions, such as protection, whitening, tanning, anti-wrinkle, deodorants, anti-aging and nails and hair care as a cosmetic product, and claim to have biologically active ingredients with medicinal benefits (Aranaz et al, 2018). The lips do not have follicles, do not produce sebaceous secretions and are not covered, unlike other regions of the body, by the protective lipid film. As saliva is constantly secreted from within the mouth and has saline properties, cosmetic products for this region require the pH must be compatible with the pH of human saliva (Galembeck & Csordas, 2009)
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