Right now my face has a lot of freckles, so I want to mix Tranexamic Acid wash 5% with lemon peel 2% base is gel or essence is good, and if this is strong. Are you going? But because there are quite a lot of freckles problems.
That means Niacinamide 4% + Alpha-Arbutin 2% = 6%. I have to use HADA LABO 94%, right? And what tool will I use to measure it? Is there a shop for sale?