T.R.U.E. -TEST®: T.R.U.E. is the acronym for: Thin Layer Rapid Use epicutaneous Patch Test. TheT.R.U.E. TEST® is a practical, ready-to-use patch test for allergological diagnostics. In the T.R.U.E. test, the allergen is already embedded in a gel base, so there is no need to fill epicutaneous test chambers with an allergen. The T.R.U.E. TEST is supplied in packs of 5 epicutaneous test units (5 each of panel 1.3, 2.3 and 3.3) for epicutaneous testing of 5 patients. The panels are sealed in an airtight foil pack with a protective cover.