The vaporized silver deposition in a vacuum environment is divided into nano/non-nano grain and foil film types.
High purity, uniform practical size, film precision, stable not to turn black, safe and non-toxic, long-lasting antibacterial
Both have exceptional stability and biocompatibility which can be used in biomedical dressings, medical filling materials, food, and skin care products.

European Commission certified PVD-processed edible GNT silver foil as food additive E174




PVD-processed GNT Silver Foil – Skin Irritation Test/ Skin Sensitization Test. (NAMSA)