In the second stage, the core of this research, and with the defined technology, a specific technological application of the mortar of recycled material was the making of cellular bricks
. These should be competitive on price, quality, and mechanical and physical properties against the current ones on the market.
A simplified epidermal model represents the skin barrier as a bricks-and-mortar structure, with lipids providing mortar between the cellular bricks
. Lipids in moisturisers are thought to intercalate into the lipid bilayer and provide benefit, possibly by influencing the activity of enzymes responsible for correct formation of the lipid barrier, as well as by forming an emollient and occlusive layer to help prevent water loss.