A hydrant toner from Centella asiatica extract / Muhamad Syazwan Ajmal Mohd Sani

Centella asiatica, also known as Gotu Kola, is a medicinal herb that has been utilized in medicine for hundreds of years in which is a plant that has high amount of antioxidant. C. asiatica effective in aids the treatment of minor wounds, hypertrophic wounds, increase the production of collagen, and promotes wound healing. Furthermore, there are few previous research that stated about the antioxidant properties of C. asiatica. This study focuses in assessing and screening the antioxidant activities and efficacy in soothing and hydrating skin from C. asiatica extract. It is important to analyze antioxidant properties of C. asiatica extract to discover a new and suitable green cosmetic product, as an alternative to synthetic chemicals found in most of skincare product worldwide. Discovery of a new skin care product which contain antioxidant properties from C. asiatica extract suitable for most people that has dehydrated skin due to hot weather in Malaysia and also potentially reducing redness, itching and scar on skin. Antioxidant properties in C. asiatica extract has potential to act as antioxidant agent to soothe and hydrate the skin. C asiatica leaves was extracted using absolute methanol. DPPH and TPC assay were later conducted to screen for antioxidant activities. Analysis of DPPH Scavenging Assay with 30 (μg/ml) present the absorbance value 0.232 with 81.35 % inhibition, compared with ascorbic acid that showed 96.13 % inhibition. TPC assay showed the absorbance value for C. asiatica extract was 0.73. In this study, C. asiatica extract show DPPH inhibition by 50% at a concentration of 23.25 ug/mL, while the IC50 value for ascorbic acid was 10.01 ug/mL (ascorbic acid was employed as a positive control). Hence, the IC50 value of C. asiatica extract also has higher than ascorbic acid caused by small error. Thus, a new formulation toner from C. asiatica extract (20 mg) with additional of water, scented oil and parfum. This formulation dissimilar with basic formulation toner which requires a specific acid such as salicylic acid, glycolic acid and lactic acid that considered as exfoliating toner for remove dead skin cells.