French winger Dembele fired Barcelona in advance after 34 mins at the Cotton Bowl, wriggling past Juventus players Juan Cuadrado and Sandro earlier than beating Juve goalkeeper Wojciech Szczesny to make it 1-zero.
But Juventus hit returned 5 mins later with Colombian wing-lower back Cuadrado making amends with a pinpoint low go that determined Kean who tapped in past Barcelona goalkeeper Marc-Andre ter Stegen.
Barcelona have been soon again in front once more, however, and once again the intention came as Dembele punished terrible defending.
Cuadrado changed into once more at fault, with Dembele skipping beyond the South American's overlaying tackle after which slicing past Manuel Locatelli to shoot past Szczesny for a 2-1 lead.
Barcelona teach Xavi Hernandez made a flurry of adjustments at half-time, with Dembele making manner for brand spanking new Brazilian signing Raphinha.
The former Leeds striker made an instantaneous effect, blasting a long-range shot that Szczesny parried over the bar.
Despite Barcelona's vibrant start to the half, it changed into Juventus who scored next with Kean tucking away a rebound after deft method play by Denis Zakaria and Locatelli on 52 minutes.
Barcelona came closest to the leap forward purpose, and hit the woodwork two times in a count number of seconds on sixty eight minutes.
Raphina rattled the crossbar with a curling unfastened kick and from the rebound Ansu Fati's curling shot from the edge of the location cannoned go into reverse the publish.
That turned into as near as either side came to breaking the impasse, whilst Barcelona's new signing Robert Lewandowski struggled to make a lot of an affect before being substituted halfway via the second one half of.
