How to add hyperlinks in Body of Email in ASP.Net C#

how to mail a hyperlinks in a simple mailing service

try
        {
            MailMessage mail = new MailMessage();
            mail.To.Add(email);
            mail.From = new MailAddress("email_add");
            mail.Subject = "New Product Added";
            mail.Body = "how to place hyperlinks over here";
            mail.IsBodyHtml = true;
            if (FileUpload1.HasFile)
            {
                mail.Attachments.Add(new Attachment(FileUpload1.PostedFile.InputStream, FileUpload1.FileName));
            }
            SmtpClient smtp = new SmtpClient();
            smtp.Host = "smtp.gmail.com";
            smtp.Credentials = new System.Net.NetworkCredential("myid", "mypass");
            smtp.EnableSsl = true;
            smtp.Send(mail);
        }
        catch (Exception ex)
        {
            Label4.Text = ex.ToString();
        }