Green Clay and Aloe Vera Peel-Off Facial Masks: Response Surface Methodology Applied to the Formulation Design

Abstract

Abstract. This article describes the optimization of a peel-off facial mask formulation. An investigation was carried out on the parameters of the formulation that most affect the desirable characteristics of peeloff facial masks. Cereal alcohol had a significant effect on the drying time at concentrations of 1-12% (w/ w). The applicability of the evaluated formulations was influenced by both carbomer (0-2.4%; w/w) and polyvinyl alcohol (PVA; 2.5-17.5%; w/w) content due to their ability to alter the formulation viscosity. Inverse concentrations of carbomer and PVA led to formulations with optimum viscosity for facial application. Film-forming performance was influenced only by the PVA concentration, achieving maximum levels at concentrations of around 11% (w/w). The optimized formulation, determined mathematically, contained 13% (w/w) PVA and 10% (w/w) cereal alcohol with no addition of carbomer. This formulation provided high levels of applicability and film-forming performance, the lowest drying time possible and excellent homogeneity of the green clay particles and aloe vera before and after drying. The preliminary stability study indicated that the optimized formulation is stable under normal storage conditions. The microbiological stability evaluation indicated that the preservative was efficient in terms of avoiding microbial growth. RSM was shown to be a useful statistical tool for the determination of the behavior of different compounds and their concentrations for the responses studied, allowing the investigation of the optimum conditions for the production of green clay and aloe vera peel-off facial masks.

Skin care and rejuvenation by cosmeceutical facial mask

“…The matrix concentration determines the viscosity, film formation, and thickness of application. This concentration should be optimized to prepare an appropriate mask for the application . The application time depends on the ingredients of the mask.…”

“…Different types of clay have cosmeceutical usage such as smectite, illite, kaolinite, and chrolite . Aloe Vera has antioxidant and anti‐inflammatory properties and, also, sterilizes the application area and has a synergistic effect with clay . It was reported that chitosan has a filmogenic property.…”

“…This concentration should be optimized to prepare an appropriate mask for the application. [16][17][18] The application time depends on the ingredients of the mask.…”

“…22 Aloe Vera has antioxidant and anti-inflammatory properties and, also, sterilizes the application area and has a synergistic effect with clay. 16 It was reported that chitosan has a filmogenic property. Its molecular weight determines the evaporation rate, flexibility, and stability of the mask.…”

Injectable nanoclay gels for angiogenesis

“…Clays may be loosely defined as materials that comprise finely-grained inorganic particles that, when mixed with water, form colloidal pastes or gels [19]. Clays are highly sorptive for biomolecules, a property which has been exploited in their use over many years as orally-taken gastrointestinal protectors [20], skin exfoliation agents [21,22] and as blood clotting agents [23]. More recently we [24,25] and others [26,27] Like many clays, Laponite has a long history of use in the food and cosmetic industries, suggesting that it is non-toxic and well tolerated, even at high doses.…”