Bioavailability Study of an Innovative Orobuccal Formulation of Glutathione

Table 3

MTT toxicity test.

	OD 540	Tissue viability	Classification
Untreated tissue	1.486	100%
Treated tissue	1.476	99.33%	NI

In vitro data obtained from the MTT irritation test performed on the HOE tissue for the evaluation of tissue viability after tested product treatment.