What version of iOS are you using? What mail client are you using? Where are you creating the hyperlink?
Sorry, I slightly misunderstood what you were asking. What you really wanted to know (for future reference) was "can I embed HTML code for hyperlinks in Mail" and the answer is no.
Not very likely. Possibly an alternate mail client would be helpful, but I've not researched this at all. On the very very rare occasion that I need to create HTML-based mail, I use a Mac program called Mail Designer.
As mentioned earlier, the full URL will be clickable by the recipient when included in an email, but the embedding you're wanting to do can't be done in Mail (on either a Mac or iOS device).