It's by Martina Topley Bird and the tune is called "Release in Love". The lady used to sing for Tricky and has an impressive solo back-catalogue too. Due to be released some time soon.
> im giving up. no it isnt the song by telepopmusik, no it isnt by kahuna, no it isnt by nina simone, it isnt by gabin, i dont know who sings the pantene pro ad song, im assuming it isnt available to the public, i have emailed pantene, twice, so far no response, i have downloaded the songs mentioned, and no they are not the songs or the performers, here's the pantene ad scenario, 'gorgeous brunette boards flight, uses eye mask, shakes hair out after flight', background music, soft female voice singing to nice drum beat in background, and so far, no one has been able to find out who the performer is, so im giving up. the song is going to haunt me for life (i have played the tune from the pantene website, believe me, none of the performers i mentioned, with the suggested songs, come even close to the ad's jingle.