Impact of coated phycocyanin and phycoerythrin on antioxidant and antimicrobial activity of soap, anti-acne face wash and hand sanitizer gel

Abstract

Background:The use of natural ingredients in skincare products has become a topic of interest in contemporary society. The adverse effects and environmental risks of synthetic compounds have prompted studies on the use of photosynthetic organisms as sustainable and ecofriendly sources of effective ingredients. Natural extracts have gained attention in the cosmetic industry, especially those derived from plants, algae, and cyanobacteria. Cyanobacteria have gained prominence in the cosmetic industry because of their low culture requirements, rapid growth rates, and capacity to produce different bioactive metabolites. As a result, cyanobacteria are economically viable and sustainable resources.Objective: We aimed to determine the effect of coating with natural phycocyanin and phycoerythrin pigments from two cyanobacterial species, Spirulina platensis and Nostoc sp., on the properties of three cosmetic products: soap, anti-acne face wash, and hand sanitizer gel.Methods: After cyanobacterial culture, the pigments were extracted, purified, and coated with the stabilizer, chitosan. Thereafter, cosmetic products were formulated with phycocyanin and phycoerythrin, and their viscosity, pH, stability, and antioxidant and antibacterial properties against bacteria were evaluated using the appropriate assays. Results:The anti-acne wash gel and soap had better properties when coated with both pigments and phycocyanin alone, whereas the hand sanitizer gel had better properties when coated with phycoerythrin alone and both pigments. Conclusion:Overall, three coated and stable cosmetic products can be produced using cyanobacterial pigments owing to their high fortifying capacity.