Metallic inks, which include copper, bronze, zinc, and aluminum particles, offer a unique aesthetic to cannabis packaging by creating a reflective sheen as the ink dries. The metallic particles reflect light, producing a color and gloss that is achieved more quickly and easily than with conventional inks. Although metallic inks may not be as glossy or reflective as hot stamping, which is a more costly and complex process, they still provide a distinctive luster that is valued in the packaging industry.

The optical properties of metallic inks differ significantly from those of regular pigments due to the metal flake particles they contain. Unlike ordinary inks, whose color remains consistent regardless of the viewing angle, metallic inks display a hue and brightness that shift with changes in perspective. This characteristic gives metallic ink a dynamic appearance that can enhance the visual appeal of cannabis packaging.

The luxurious and subtle look of metallic ink, coupled with its impressive luster, comes at a higher price than standard inks due to the increased amount of metallic pigment—typically 2 to 4 times more than what is used in regular ink. Despite the higher cost, the unique expressiveness that metallic ink offers makes it a popular choice in packaging and printing. It can significantly boost a product's marketability and attract consumer attention.

In the cannabis industry, where branding and product differentiation are crucial, the use of metallic inks can provide an edge over competitors. Brands can leverage the unique properties of metallic inks to create packaging that stands out on the shelves and conveys a sense of quality and sophistication. Moreover, when compared to other metallic effects achieved through processes like hot stamping or aluminum film printing, metallic ink offers a more cost-effective solution while still delivering the desired visual impact.