Buddypress Logged-In User Profile Link URL
<?php bp_loggedinuser_link() ?>
<p>You can check out your <a href="<?php bp_loggedinuser_link() ?>"><u>profile here</u></a>.</p>Returns the url of the logged user's profile e.g.
Source: https://buddypress.org/support/topic/logged-in-user-profile-link-url/