Xen-Tan Dark Mist Xen-Tan Dark Mist contains a remarkable new ingredient which works with the tanner to provide a darker deeper & longer-lasting olive colour. Plus Xen-Tan have produced a tan with absolutely no chemical smell whatsoever! Seriously even after you have been in the hottest conditions for hours neither you or anyone else will be able to smell that awful Fake Tan chemical smell & if thats not enough its totally paraben free! Xen-Tan Dark Mist is perfect if you forgot to tan the night before as you can easily apply it in the morning for an Instant glow. A fine even mist can be spread easily over your skin for a dark instant colour that will last for up to 7 days.