*'''VFAs''': acetic, propionic, butyric and valeric acids are lipid soluble, which enables them to readily diffuse into the stratum spinosum and immediately cause the damage as described above. | *'''VFAs''': acetic, propionic, butyric and valeric acids are lipid soluble, which enables them to readily diffuse into the stratum spinosum and immediately cause the damage as described above. |