How to use our stable dry holi (c) powder. You only need a dash! If you use too much your skin will feel tight. holi (c) has just two ingredients- French patented calcium ketogluconate which lifts and firms the skin by 27% after 30 days use. Dermatologists are calling this patented calcium a topical filler because of its ability to reinforce your skin to create more of its own hyaluronic acid. It can also be used on the lips. Our stable vitamin c is called sodium ascorbyl phosphate which is more gentle than ascorbic acid. It’s not harsh and unlike AA it doesn’t cause breakouts. This bottle will last you minimum 3-4 months.