The next time you get a package, the white foam protecting your fragile item will likely be expanded polystyrene. It insulates well, it’s cheap, and it will sit in a landfill for centuries. S.Lab, a startup founded in Ukraine and now operating from Malaga, Spain, is betting you’ll accept a replacement that performs the same job and then disappears into soil in under 45 days [s-lab.bio]. Their material is grown, not extruded, from a mix of mycelium and agricultural waste like hemp stalks.
The fungal wedge into packaging
S.Lab’s bet is that the performance gap between plastic and bio-alternatives has closed. They claim their material matches polystyrene on thermal insulation and water resistance, two critical metrics for protective packaging [s-lab.bio]. The wedge is the green packaging market, where European brands face tightening regulations and consumer pressure to ditch plastic. The company’s early work includes a custom perfume box for the Sofia Yablonska Foundation, a proof-of-concept for luxury goods where sustainability is a premium feature [s-lab.bio case study]. The founders, Julia Bialetska and Eugene Tomilin, discovered the hemp-mycelium combination and have since moved production to Spain to serve the European market [F6S].
Backing the biology
Early-stage capital is betting the science can scale. S.Lab has collected a mix of grants and seed funding, a common path for capital-intensive climate hardware. A $100,000 grant from the Google for Startups Ukraine Support Fund landed in October 2024 [Tech.eu, Oct 2024]. They’ve also taken undisclosed seed funding from ZAS Ventures and grants from Seeds of Bravery, while Vesna Capital is listed as an investor [Crunchbase] [ZAS Podcast]. The company passed through the TechStars Sustainability Paris Accelerator, a signal that experienced operators see a path to industrial production [Techstars].
| Investor | Round Type | Amount (Disclosed) | Date |
|---|---|---|---|
| Google for Startups Ukraine Support Fund | Grant | $100,000 | Oct 2024 |
| Seeds of Bravery | Grant | Undisclosed | Unknown |
| ZAS Ventures | Seed | Undisclosed | Unknown |
| Vesna Capital | Seed (Participant) | Undisclosed | Unknown |
The scaling equation
The ambition is clear, but the unit economics of growing packaging at industrial scale remain the central puzzle. Mycelium requires time, controlled environments, and feedstock. S.Lab will need to prove its process can be both fast and cheap enough to compete with a commodity that costs pennies. The company says it uses robotics and sensors to scale production, a hint at the automation required to keep costs down [Forbes, Dec 2024]. They’ve also passed a third-party audit by L’Oreal, a positive signal for quality and process control that could ease enterprise sales [Julia Bialetska LinkedIn]. The risks here are not about the material’s promise, but about the factory floor.
- Feedstock consistency. Sourcing sufficient, uniform agricultural waste at scale is a logistics challenge that could impact material quality and cost.
- Cycle time. Growing materials biologically is inherently slower than molding plastic. Compressing that cycle time without exploding energy costs is the core engineering problem.
- Price parity. Even with regulatory tailwinds, the product must reach a price point where sustainability officers don’t need to fight the procurement department.
Here’s a back-of-the-envelope look at the volume challenge. The global protective packaging market is worth tens of billions. If S.Lab captured just 0.1% of that, it would need to produce thousands of tons of material annually. That means farming mushrooms on an industrial scale, every day. It’s a manufacturing business disguised as a biomaterials story. To win, S.Lab must eventually beat not just other bio-startups, but the entrenched, hyper-optimized global supply chain for expanded polystyrene. That’s the incumbent they have to outgrow.
Sources
- [s-lab.bio] S.Lab homepage | https://s-lab.bio
- [F6S] S.Lab company profile | https://www.f6s.com/company/s.lab
- [Forbes, Dec 2024] Ukrainian Startup Is On A Mission To Scale Biodegradable Packaging | https://www.forbes.com/sites/jenniferkitepowell/2024/12/24/ukranian-start-up-is-on-a-mission-to-scale-biodegradable-packaging/
- [Tech.eu, Oct 2024] Google for Startups Ukraine Support Fund grant announcement | https://tech.eu/2024/10/16/google-for-startups-ukraine-support-fund/
- [Crunchbase] S.Lab Crunchbase profile | https://www.crunchbase.com/organization/s-lab-0cc7
- [ZAS Podcast] S.Lab podcast interview | https://podtail.com/podcast/zas-podcast-talks-with-startups/--s-lab-plastics-1-0-julia-bialetska/
- [Techstars] S.Lab TechStars accelerator profile | https://www.techstars.com/blog/startup-profile/get-to-know-s-lab-techstars-sustainability-paris-accelerator
- [Julia Bialetska LinkedIn] Julia Bialetska's LinkedIn profile | https://www.linkedin.com/in/juliabialetska/