How noticeable is the attached area between my real hair and each dreadlock extension?

If your hair color and texture matches the hair used for the extensions it will be virtually seamless. And even if your hair doesn’t match perfectly it’s still very difficult to notice the attachment in most cases. In some straighter hair types it’s not uncommon to have a slightly thicker section where the connection is made, but it’s only noticeable if you’re seeking it out.