Table 3.

Proinflammatory activity of commercially available cleansing products.

Cleanser	IL-1α (pg/mL)	MTT cell proliferation assay
Mild baby cleanser	100.5 ± 35.0	99.5%
Sensitive skin syndet bar	1150.1 ± 0.1	6.5%

Mean (± standard deviation) IL-1α (pg/mL) released from in vitro skin tissue equivalents (EpiDerm, MatTek Corporation, Ashland, MA, USA) after exposure to various cleansing products. MTT cell proliferation (cell viability) assay data are also shown. The sensitive skin syndet bar had significantly more cell death than the mild baby cleanser, IL-1α: interleukin-1α.