Cosmetics Formulation Development

Rose Hip Oil can be applied alone to ลดรอยดำ from acne?

Hello Rose Hip Oil can be applied directly to the skin. but there are no research results confirming that it can help acne scars. There are only some research results. Shows the effectiveness of reducing redness from acne (which should be applied after the wound caused by acne has completely healed first. Do not apply while the wound is still inflamed)