Hi everyone, this is my first post and I hope I am not addressing something that has been discussed over and over again. I just made my own vit c serum with 1/2 teaspoon of asorbic acid, teaspoon of glycerin and teaspoon of distilled water. I have only been using it for three days and I only use it at night, in the morning i mixed up some skb, ferulic and vitamin e oil and apply that. I have also been using arbutin mixed with lotion in the mornings. This morning I noticed I have two lines coming off of the sides of my mouth that were never there before, they are very noticeable to me. Any suggestions? thanks in advance.