Cleansing Formulations That Respect Skin Barrier Integrity

Figure 5

(a) Peak frequency of the SDS-d₂₅ CD₂ asymmetric stretching band as a function of temperature in isolated SC after 2 h (circles line) and 6 h (squares line) SDS-d₂₅ incubation along with a SDS-d₂₅ solution in PBS at 62.5 mg/mL (down-pointing triangles line); (b) average peak frequency of SDS-d₂₅ CD₂ symmetric stretching in porcine and human SC after 3, 24, and 40 h treatment at room temperature (gray) and 34°C (black) along with a SDS-d₂₅ solution in PBS at 12.5 mg/mL. Error bars (standard deviation) do not reflect lack of precision in the measurement but rather predominantly arise from heterogeneity in the skin; (c) peak frequency of SDS-d₂₅ CD₂ symmetric stretching frequency in porcine and human skin after treatment for 3, 24, and 40 h at 34°C.

(a)

(b)

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