Kelayakan Masker Gel Peel-Off Kopi Robusta (Coffea Canephora) dan Gambir (Uncaria Gambir) Terhadap Kecerahan Kulit Kering
Dry skin causes the skin to look cracked, rough and scaly, which is caused by weather, environmental factors and skin diseases. For this reason, facial skin needs antioxidants so that facial skin can be protected from free radical attacks that can harm the skin. Robusta coffee contains flavonoids which can increase antioxidant activity. And gambier which contains catechins which are antioxidants. For this reason, treatment for dry skin is needed in the form of a peel-off gel mask of Robusta coffee and Gambir. This study aims to determine the feasibility of peel off gel masks for Robusta and Gambir coffee in terms of flavonoid content tests (laboratory tests), organoleptic tests in the categories of texture, aroma, stickiness) and hedonic tests (panelist preferences). This study uses quantitative research methods with an experimental approach with observation methods, documentation and observation sheets as data collection techniques. Based on the data that has been processed, a flavonoid content test was obtained, namely that there were 0.0094% (9.3951 ppm) levels of flavonoids in 100gr of the sample tested which function as antioxidants so that the skin can be protected from free radical attacks that can harm facial skin. The organoleptic test and hedonic test showed that the peel-off gel mask had a very thick texture, strong aroma, very sticky power and was liked by the panelists. Thus, the Robusta coffee and Gambir peel-off gel masks are suitable for use on dry skin.