1. Selecting raw materials and the shop mixes the recipe to make it still available or not? I can't find the link anymore 2.
VitC -
CE Ferulic (Lite) vs
Natural-C Glycol different how Which one performs better? 3.
VitC MAP that the shop sells as raw materials or finished products. 3.1
VitC MAP If finished product can choose VIT
B3 BHA B5 can you add?
BHA Salicylic Acid how many % is it raw material or finished product? can add VIT
B3 ,B5 please mix it for me. Thank you.