Formulation and characterization of a Helianthus annuus - alkyl polyglucoside emulsion cream for topical applications.
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BACKGROUND
Green formulations with herbal oils and natural nonionic emulsifiers project several advantages, like favorable viscosity profiles, for use as topical applicants. Their inherent constituents also protect the skin against free radical damage and lipid peroxidation. They may hence serve as alternatives for synthetic chemical-based formulations.
OBJECTIVE
Formulation and characterization of Helianthus annuus-alkyl polyglucoside cream for topical application has been attempted. Its inherent sun protection factor has been measured and compared with a similar commercial formulation. It is well known that the internal network of liquid crystals of such emulsifiers can store depot water to maintain moisturization for long time, thus bestowing beneficial dermatological effects.
METHODS
Physicochemical characterization of the oil was done. The formulation process for the cream was optimized for reduced particle size with respect to ultrasonication conditions. It was characterized extensively; its inherent sun protection factor was measured and compared with a similar commercial cream.
RESULTS
The cream was smooth, creamy, and showed non-Newtonian thixotropic behavior and good shear-thinning features with an SPF of 6.3 that compared favorably with a similar commercial cream.
CONCLUSIONS
The cream may serve as a good topical applicant and also help in skin hydration due to the inherent nature of the emulsifier. It may protect against UV radiations due to the antioxidant and anti-inflammatory nature of the natural oil constituents. It may be used as a low-SPF formulation.
