Application of microencapsulated essential oils in cosmetic and personal healthcare products – a review

Abstract

Synopsis Nowadays, the consumers around the world are increasingly focused on health and beauty. The renewed consumer interest in natural cosmetic products creates the demand for new products and reformulated others with botanical and functional ingredients. In cosmetic products, essential oils (EOs) play a major role as fragrance ingredients. They can optimize its proprieties and preservation, as well as the marketing image of the final product. Microencapsulation of EOs can protect and prevent the loss of volatile aromatic ingredients and improve the controlled release and stability of this core materials. The importance of EOs for cosmetic industry and its microencapsulation was reviewed in this study. Also a briefly introduction about the preparation of microparticles was presented. Some of the most important and usual microencapsulation techniques of EOs, as well as the conventional encapsulating agents, were discussed. Despite the fact that microencapsulation of EOs is a very promising and extremely attractive application area for cosmetic industry, further basic research needs to be carried out, for a better understanding of the biofunctional activities of microencapsulated EOs and its release modulation, as well as the effects of others cosmetic ingredients and the storage time in the microparticles properties.

Control of infection of Biomphalaria alexandrina (Ehrenberg, 1831) with Schistosoma mansoni Sambon, 1907 using Eucalyptus camaldulensis

“…Eucalyptus is a rich source of polyphenols, terpenoids, eucalyptol and cineole (GHiSalbeRti 1996, laMbeRt et al 2001, dey & MitRa 2013. Essential oils from E. camaldulensis are used to produce soaps, detergents, lotions and perfumes and also to flavour foods and beverages (caRvalHo et al 2016). The plant has also an antimicrobial potential against gram-positive bacteria (neelaM et al 2014) and anti-inflammatory (Pino et al 2002), antitermitic (SiRaMon et al 2009), larvicidal and mosquito repellent effect (batiSH et al 2008, neRio et al 2010, as well as antioxidative and antiradical properties (SiRaMon & oHtani 2007).…”

Antifungal mechanism of action ofSchinus lentiscifoliusMarchand essential oil and its synergistic effectin vitrowith terbinafine and ciclopirox against dermatophytes

“…In this context, studies have demonstrated that chemosensitization of microorganisms by essential oils or their isolated compounds improved the efficacy of commercial antifungal agents . Essential oils are an important group of plant secondary metabolites used on a large scale in the cosmetic, food and pharmaceutical industries due to their related biological effects . Therefore, these substances can be an alternative to be used in combination with antifungals agents, as they are associated with antimicrobial, anti‐inflammatory and antioxidant activities …”

Characterization of Portuguese Thymbra capitata, Thymus caespititius and Myrtus communis essential oils in topical formulations

“…Nevertheless, EOs have a short life, as they are volatile and reactive in the presence of light, heat, moisture and oxygen. Several researchers have investigated alternatives to overcome these challenges, and microencapsulation has been considered as one of the most effective techniques . Moreover, due to the presence of known potential allergens, some EOs may show skin sensitization such as contact irritation, allergy and phototoxicity/photoallergy .…”