Pseudoalteromonas Ferment Extract
Pseudoalteromonas Ferment Extract is a biotechnologically derived ingredient produced by the fermentation of a marine bacterium that lives in the cold Antarctic Ocean. It is officially classified as a humectant by CosIng and is also noted for soothing and absorbent/mattifying functions. It is commercially available under the trade name Antarcticine, typically used in diluted form in finished formulations.
It can help protect skin from dryness and redness caused by cold weather, and in-vitro data suggest it stimulates synthesis of type I and IV collagen and elastin to support skin regeneration and smoother texture. In-vivo tests showed a 1% concentration increased skin hydration by 14.8% in cold weather and a 5% concentration reduced the depth of eye-area wrinkles by 44%. It also targets oily skin by reducing sebum production, skin shininess, and pore size via downregulation of the Melanocortin 5 receptor, with in-vivo data showing a 9.5% reduction in active follicles and a 27.2% reduction in total follicle surface after 28 days.
In-vitro collagen and elastin stimulation results may not directly translate to living human skin; efficacy data cited are primarily from the manufacturer and have not been independently verified in the source.
