Pauly D was recently given a whole lotta free hair product -- and if it ain't enough to keep his blowout stiff for life, then we got a real situation.

Pauly D
The people at JOICO noticed the show's resident DJ used their goods and sent him an insane supply to keep him stocked. We're told Pauly has no deal with the company, they just wanted to hook him up.

JOICO shipped 48 ICE Blast hairsprays, 48 travel size tubes of Spiker, another 48 full size tubes of Spiker and 6 Mega Size tubes of Spiker -- valued at over $2,200!

Pauly posted a pic of his massive supply on Twitter ... with a message saying it'd only last him a week.