I am really sorry about that!. Must have skipped that line.
Personally, and factually, you will get the best benefits using both therapies. Blue light is known for killing acne-causing bacteria by creating oxygen molecules.
However, where red light comes to play is for its healing and anti-inflammation property. Red light heals up acne faster and helps you in a multi-purpose way.
So, I say, get both!. Don’t miss out on the red!.