Hyangii products are made with highly active botanical ingredients and do not contain any fillers or bulking ingredients. For this reason, it is important to introduce products slowly--one product every three days or so. Start with LESS product that you would use with conventional products and increase as tolerated.
Please watch these videos (I can’t bear watch them myself so I hope they’re still current since I made them last year).
You may also want to access the following information:
Yours in skincare adventures,
Cee