Antioxidant Activity of Chlorella vulgaris Used As an Antioxidant Cream

This study aims to analyze the antioxidant activity of Chlorella vulgaris for used as an antioxidant cream. The method used in this study is the DPPH method to measure the antioxidant activity of chorella vulgaris cream based on the IC50 value and the BSLT method for determining toxicity for cosmetic use. The result was that Chlorella Vulgaris cream had an IC50 value of 127 μg / mL with an antioxidant activity of 61.90%. As a control cream without the addition of Chlorella Vulgaris showed an IC-50 value of 79,423 μg /mL with antioxidant activity of 3.46%. Chlorella Vulgaris cream has a very high antioxidant activity compared to the control cream without the addition of Chlorella Vulgaris. Chlorella Vulgaris cream can be used as an anti-aging cream based on the LC50 value is non-toxic and has a pH of 5.5 and after storage the pH is 6.5 according to the pH of the skin, so it is safe to apply.