Cornelius has signed an exclusive distribution partnership with Melt&Marble, the Swedish biotechnology company behind Marble7®, for the UK and Ireland. The agreement brings personal care formulators a new kind of lipid, one that is designed and produced by precision fermentation rather than pressed from a plant or rendered from an animal.

Marble7® made its commercial debut in July 2026 at in-cosmetics Korea in Seoul, where Melt&Marble showcased it in the show’s Innovation Zone. Launching in one of the world’s most closely watched beauty markets, it now arrives in the UK and Ireland through Cornelius. It adds a biotechnology-derived emollient to our Personal Care portfolio for skin care, colour cosmetics and hair care.

Based in Gothenburg, Melt&Marble has built a patent-protected platform for custom lipid design. The company re-wires the lipid metabolism of yeast so that it produces fats with a chosen composition, then extracts them in the same way plant oils are extracted today, without further chemical modification. Production runs on a flexible range of plant-based feedstocks. This makes Marble7® palm-free and free from deforestation, and leaves its supply less exposed to the climate and crop variability that affects many conventional butters and oils.

Marble7® (INCI: r-Saccharomyces Butter) is a semi-solid butter with a lipid profile similar to human sebum and a high level of Omega-7. Melt&Marble describes it as a 3-in-1 bio-active lipid:

  • Engineered to Care: an Omega-7-rich, sebum-like lipid profile for skin, scalp and hair fibre
  • Structured to Perform: a soft-solid emollient that adds structure, stability and glow to formulations
  • Designed to Melt: melts at skin temperature for a solid-to-silk texture and silicone-like glide

Marble7® has an ISO 16128 Natural Origin Index of 1 and is vegan and palm-free. It works at 1–15% in emulsions, 10–70% in solid formats and up to 90% in anhydrous formulas.

Liam Smith, Group Business Development Director at Cornelius, said: “Formulators want ingredients that perform, feel good on the skin and come from a sustainable supply chain they can rely on. Melt&Marble has taken a genuinely different route to get there. Marble7® cares for the skin, gives structure to a formula and delivers the sensory finish customers ask for, all from one ingredient. It made its debut in Seoul, and we’re proud to be bringing it to the UK and Ireland as Melt&Marble’s exclusive partner.”

The partnership reflects Cornelius’ commitment to giving personal care customers early access to new ingredient technologies, backed by practical formulation support. To request a sample, the technical dossier or the formulation library, contact the Cornelius Personal Care team at sales.enquiries@cornelius.co.uk.

About Melt&Marble
Melt&Marble AB is a biotechnology company based in Gothenburg, Sweden. Using precision fermentation and a patent-protected platform for custom lipid design, it creates tailored fats and lipids for personal care and food. Marble7®, its first commercial personal care ingredient, launched in July 2026.