Does he have a secret or a public identitity? And is he permanently joined to the costume or can they be seperated? If seperated does he revert to "normal" or remain in the perfected form?
If he has two identities how about having an obvious injury, not something like a limp or eye-patch but more like a facial scar or missing fingers in his "normal" ID. That way the fact he is obviously whole in his hero form makes his dual ID less obvious.
Also could his perfected ID look less like his normal ID- possibly with the more exotic hairstyle/color as well as slightly altered facial features. Again somthing so he isn't just the same guy in a costume sans glasses.