Abstract:
The objective of this research was to study the extraction of colorant from grass jelly for eyebrow makeup product. The extraction was performed by using water as solvent at 80-100°C for 3 hours. The extract is a dark brown liquid with pH of 5.65. In strong alkaline conditions, the color of the extract is dark brown to almost black. In strong acidic conditions, the color of the extract changed to light brown and precipitation was formed at pH of 1-2, so the appropriate pH is 5.5-7 which is good color for eyebrow makeup and gentle on the skin. The extract was concentrated by evaporating water until the volume reached 10% of original volume. Then, the concentrated extract was used to prepare an eyebrow mascara in form of water-based gel. The product is thick brown gel and has light characteristic smell of grass jelly. The product showed no microbial contamination tested by Mikrocount combi test kit and was classified as non-irritant after tested by primary skin irritation patch test. The product is stable after tested by accelerated stability test for 28 days. The developed product dried faster when applied and more easier to clean with makeup remover when compared with the prevailing product. The volunteer-assessed satisfaction was not significantly different between the developed product and the prevailing products from the market.