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Ceramide 3B is a ceramide 3 lipid class with aggregation behavior. Ceramide 3B has a variety of physiological functions and can serve as a penetration enhancer and auxiliary emulsifier, playing an important role in barrier function stability[1][2].

ChEBI: N-oleoylphytosphingosine is a phytoceramide in which the N-acyl group is specified as oleoyl (9Z-octadecenoyl). It is functionally related to an oleic acid.

[1] De Paepe K, et al. Incorporation of ceramide 3B in dermatocosmetic emulsions: effect on the transepidermal water loss of sodium lauryl sulphate-damaged skin. J Eur Acad Dermatol Venereol. 2000 Jul;14(4):272-9. DOI:10.1046/j.1468-3083.2000.00103.x
[2] Garidel P, et al. Aggregation behaviour of ceramide class 3 lipids[J]. HASYLAB Annual Report, 2003, 1: 1009-1010.