Green House Tattoo Supplies ink caps plant based plastic free
Green House Tattoo Supplies small ink caps plant based plastic free
Green House Tattoo Supplies medium ink caps plant based plastic free
Green House Tattoo Supplies large ink caps plant based plastic free
Green House Tattoo Supplies plant based plastic free
Green House Tattoo Supplies ink caps plant based plastic free

Eco Ink Caps

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We'd definitely advise that you familiarise yourself with the materials we use to make our products, in order to manage your waste correctly and environmentally consciously. To help you out, we've compiled lots of information and written some useful guides about our products and materials, as well as other environmental topics. Please read our guides here!

We take greenhouse gases out of the atmosphere to make our ink caps!

The material used to make our ink caps is PLA (polylactic acid) - a unique biobased material that comes from plants instead of fossil-fuels, known as a biopolymer. The material is inspired by nature and the process of making it starts by using greenhouse gases, like atmospheric carbon, as a feedstock (raw material). Nature does this all the time, it’s what plants, entire forests, and even huge structures like coral reefs are built from.

“While we view carbon as a problem, nature views it as a resource and an essential building block.” 

- Bryony Schwan, The BioMimicry Institute

Our ink caps are made from plants, not oil, and the manufacturing process of the material shows a significant reduction in greenhouse gas emissions, compared to that of traditional polymers, such as polystyrene.

At the end of it’s life cycle it can be sent to industrial composting facilities where it will undergo a 2-step degradation process, the end result of which is carbon dioxide, water, and humus, a rich soil nutrient. Results are dependent on temperature and humidity,

Environmental features

  • Made from plants - not made from oil
  • Certified as industrially compostable
  • Sustainable - Made from 100% annually renewable resources
  • Can be made from any abundantly available sugar source
  • 80% less greenhouse gas emissions during manufacturing
  • 52% less energy use during manufacturing
  • No genetically modified (GM) materials
  • Zero waste / plastic free packaging that is 100% biodegradable and compostable - read more about our packaging
  • Manufactured in the UK by a green bioplastic specialist
  • Stored and distributed by a green fulfilment company

Other features

  • Green tint to easily distinguish from regular non-eco products (The green looks quite bright when there are lots of caps together, but individually it is a very subtle tint, and shouldn’t affect your ink colours in any way)
  • Premium quality - no cheap, flimsy materials from China
  • Ridged edges for easier handling
  • Stable bottom
  • Available in sizes small (11mm) / medium (14mm) / large (17mm)
  • Available in refill packs of 100
  • Hypoallergenic
  • BPA free

Material Certifications

  • “OK biobased” certification from Vinçotte - (Verification that 100% of the carbon in the biopolymer originates from renewable agricultural resources instead of oil)
  • USDA BioPreferred label
  • European standard EN13432 certification (OK compost INDUSTRIAL)
  • International Sustainability & Carbon Certification (ISCC) PLUS - (Certifying the sustainable production of renewable raw materials including the certification of the chain of custody)
  • Working Landscape Certificates - (Certifying sustainable agricultural production for emerging biomaterials sectors, including the bioplastics industry)


Our ink caps are manufactured in the UK in Daventry, Northamptonshire, by an environmentally conscious company that have a strong ethos on sustainability, and an eco-friendly approach to production. We support the UK manufacturing industry and ensure fair wages for all workers.

All of our products are manufactured in the UK, and are produced using just two manufacturers, and two materials. The same manufacturers also pack our products, avoiding even more greenhouse gas emissions from transportation. If everything is manufactured and packed in just two factories, using just two materials, then the journeys that the products have to make from source to completion are reduced to a minimum, reducing the overall carbon footprint.

Storage instructions

We’d advise taking these out of the bag and storing them in your favourite glass jar or other reusable container! Although this refill bag is designed so that it can be ‘resealed’ if necessary. The possibilities are endless, how will you store yours?!

Make sure to keep in a cool, dry place, away from direct sunlight.