Tanning Mom Patricia Krentcil has committed the cardinal sin of tan addicts -- stuffing her orange, leathery skin suit into a tube of fake UV light ... i.e. a TANNING BED!!!!
Our tanning sources tell us ... while in Palm Beach Gardens, Florida -- where she's staying for rehab (alcohol, not tanning) -- Patricia stopped by a Copper Tan USA to get her brown on ... despite vowing in the past to never fake tan again.
And get this ... we're told Patricia didn't buy just one session, she bought NINE. Here's the breakdown:
-- 8 sessions for $40 in a level-one bed (the lowest level of cancer light tanning avail)
-- 1 session for $32 in the strongest bed ... the "Celebrity Bed" ... which she USED the same day.
According to the receipt Patricia plunked down $113.10 (she also bought tanning lotion).
Cancer cells come free.