Cosmetics Formulation Development

Hello, can you please take a look at which vitamin powders help with scars? I want one that can be directly mixed with general skin lotion. I want to apply on my skin. and don't know if there is Can it be mixed? Please disturb me. Thank you.

Vitamin C (L-ascorbic acid) Powder type. Used to mix when applying with approximately 10- 15% per amount of cream