Innovative Sustainable Materials

Mycelium, Jesmonite and PLA


Mycelium is a 100% sustainable process that involves growing mushrooms on organic matter to make a strong material. Mushrooms are natures recycling system, growing on plant-based materials, self-replicating without any outside energy inputs.

By-products from agriculture are used as the stating point. This is carefully selected and prepared. Mycelium is then added. Mycelium is the vegetable tissue (roots) of a mushroom. It grows exponentially when provided with the correct nutrition and environment. The Mycelium binds the agricultural waste together into a high-performance material. The binding material comes from Chitin – a natural glue produced by the mushrooms that is naturally water and flame resistant.

The mycelium can be grown into any shaped mould to form a three-dimensional structure. After six days of growth the product is then dried and is ready for use.

Mycelium products are ideal for packaging as a polystyrene substitute, however can also be used in the construction industry, Interior display, FMCGs as well as visual merchandising.

Mycelium features include, durability, biodigestable, biodegradable, hydrophobic, flame resistant and vegan and cruelty free.


Jesmonite Is a material predominantly made up of Gypsum (a calcium salt mineral) combined with water. Its composition and production process makes its eco benefits extensive.

As a component, Gypsum is a highly abundant natural resource – it is easy to surface mine making it less damaging to the environment.  Its combination with water in its production makes it far less harmful than oil-based alternatives and does not produce toxic fumes and is considerably safer than working with a fiberglass alternative. This culminates in a product that can keep C02 emissions and its carbon footprint to a minimum.

Jesmonite can be manipulated in several ways by adding natural pigments to mirror the effect of terrazzo or marble and its lightweight properties make it an excellent alternative to stone or concrete.

Gypsum is highly durable and needs very little maintenance and therefore Jesmonite is known for its longevity.

PLA (Polylactic Acid)

PLA (polylactic acid) is a plant-based plastic. It is made from fermented plant starch such as corn, sugarcane, or sugar beet pulp. This then can be combined with an organic material such as wheat straw as a binding ingredient to make a strong lightweight material.

Its versatility means it can be used to make a wide range of consumer goods as well as display, interior and visual merchandising products.

PLA has a good end of life record – it can be recycled and is also compostable. It is biodegradable under industrial composting conditions.

HOL Sustainability is part of the HOL Group – a diverse range of creative brands that specialise in retail and hospitality by providing original, engaging concepts to its customers along with practice and commercial visual solutions.