A Ceramide Blend Is a Starting Point, Not a Barrier Result
A new multi-class ceramide blend raises a useful formulation question: which parts of skin's lipid structure does the blend match, and what still needs to be measured?
Five classes do not tell the whole story
LCS Biotech lists five ceramide classes—NP, EOP, OP, ENP and NG—in its EcoCera PLEX blend and describes the composition as skin-equivalent. That is a supplier description of an ingredient, not evidence that a finished cream restores the skin barrier. The supplier page does not provide a complete molecular count or a comparative clinical result for this blend. [1]
Human stratum corneum contains ceramides with many combinations of head groups and chain lengths. A study mapping that diversity helps explain why a label naming one or several classes cannot, on its own, describe the lipid structure present in skin. [2]
Composition is one test; performance is another
In defined skin-lipid models, changing a ceramide subclass ratio changed water flux even though several measured structural features remained similar. A model result makes composition worth measuring, but it does not establish how this supplier blend performs in a finished product or on human skin. [3]
For a formulation team, the first questions are concrete: which molecules and chain lengths are present, in what proportions, and how stable are they in the intended format? A separate product study would then need to assess the relevant barrier outcome under defined use conditions. “Skin-like” is a design claim until those comparisons are made.
Sources
- LCS Biotech. EcoCera PLEX product information.
- Suzuki M, et al. Whole picture of human stratum corneum ceramides, including the chain-length diversity of long-chain bases. Journal of Lipid Research. 2022.
- Nădăban A, et al. Effect of sphingosine and phytosphingosine ceramide ratio on lipid arrangement and barrier function in skin lipid models. Journal of Lipid Research. 2023.