For those who want to try various products: SOFINA iP Base Care Serum 30g This is a foam-type serum, so the remaining amount isn't clear, but it has been used 5 times. MUJI Medicated Whitening Serum: 30% remaining SHISEIDO SENKA Suppin Shirayuki Essence: 40% remaining Keshimin Cream: Almost unused SANA Nameraka Honpo Eye Zone Firming Cream: 50% remaining