Cryogenic scanning electron microscopy has shown that lanolin, like human stratum corneum lipids, consists of a mass of liquid crystalline material.
42.
Cross-polarised light microscopy has shown the multilamellar vesicles formed by lanolin are identical to those formed by human stratum corneum lipids.
43.
Recently, ceramides, which are the major lipid constituent of the stratum corneum, have been used in the treatment of eczema.
44.
As the corneum layer normally varies greatly in thickness in different sites, some experience is needed to assess minor degrees of hyperkeratosis.
45.
Located between the stratum granulosum and stratum corneum layers, it is composed of three to five layers of dead, flattened keratinocytes.
46.
Within the stratum corneum, filaggrin monomers can become incorporated into the lipid envelope, which is responsible for the skin barrier function.
47.
Interaction with water with a component in or on the stratum corneum or sebum, generating a toxic compound, has been suggested.
48.
The presence or sericin increases hydroxyproline in the stratum corneum, which in turn, decrease skin impedance, thus increasing skin moisture.
49.
Erythrulose / DHA reacts with the amino acids in the proteins of the first layers of skin ( the stratum corneum and epidermis ).
50.
The components of the natural moisturizing factor absorb water from the atmosphere to ensure that the superficial layers of the stratum corneum stay hydrated.
