Applied at XYZ Corp for Marketing Position

Today, I found myself contemplating whether to send a follow-up email to the hiring manager after my second-round interview for the marketing position at XYZ Corp. During the interview, I realized that I didn't highlight some relevant experience that could strengthen my candidacy. I'm considering drafting an email to briefly mention this experience and how it aligns with the role. I want to make sure I present myself in the best light possible, but I'm unsure if this is the right move. I hope to get some advice on whether this would be appropriate or if it might come off as desperate.