Minelli Magazine - Packaging

Biocomposite materials: the next frontier in sustainable packaging

Written by Corrado Fioroni | October 31 2025

The search for sustainable alternatives in beauty packaging is driving innovation in materials forward. One of the most promising solutions is biocomposites, which are engineered materials that combine natural fibres, such as wood, hemp or cork, with bio-based or recycled polymers.

The result is a material that offers the mechanical strength of composites while reducing reliance on virgin plastics. For beauty brands, biocomposites offer a means of integrating sustainability directly into product design, creating components that are durable and align with consumers' expectations of eco-conscious beauty products.

What are biocomposite materials?

A biocomposite is a material created by reinforcing a polymer matrix with natural fibres or fillers. In practice, this involves combining renewable resources, such as wood fibers, cork granules, hemp and flax, with bio-based or recycled polymers to create a new material with enhanced properties.

So, the most important things to remember are:

  • Natural fibers or fillers: provide stiffness, texture and a tactile link to nature;
  • Polymer matrix: binds the fibres together, giving the material structure, stability and durability;
  • Additives or surface treatments: improve adhesion, water resistance or processability.

The appeal of biocomposites lies in their balance. They can reduce weight, increase the strength-to-density ratio and improve sustainability by reducing reliance on virgin plastics. At the same time, they offer unique aesthetic qualities, such as natural textures and visible grain, or even customisable colour effects.

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The key properties and challenges of biocomposites

Biocomposites combine the strength of natural fibres with the versatility of polymers, providing brands with a premium-feeling material that reduces environmental impact. They are lighter than many traditional plastics and pleasant to the touch. They can also be finished with unique textures or colours that highlight their natural origin.

However, these materials also present specific challenges. For example, natural fibres absorb moisture, which can affect dimensional stability, and some bio-polymers have a narrower processing window than conventional plastics. Achieving consistent colour and surface finish also requires careful control.

The good news is that these limitations can be overcome through design and engineering. With the right treatments, compatibilizers and production expertise, biocomposites can provide reliable closures and inserts that meet the technical requirements of beauty packaging, offering a distinctive, sustainable character.

 

How biocomposites are used in cosmetic packaging

In the world of beauty packaging, biocomposites are creating a new space where technical performance meets sustainable storytelling. They are already being used in various ways:

  • Biocomposites can replace plastic inserts or full closures in closures and caps, combining a precise fit with a natural, tactile feel. Details such as weight, grain and sound can have a significant impact on perception;
  • Inserts and decorative elements: small biocomposite components bring depth and uniqueness to packaging, offering textures or tones that signal authenticity;
  • Refill frameworks: in refillable systems, outer shells made of wood can be paired with inner inserts made of biocomposites to ensure durability while maintaining an eco-friendly profile;
  • Limited editions and premium collections: their distinctive appearance and sustainable profile make biocomposites ideal for storytelling campaigns where the choice of material itself becomes part of the brand narrative.

Biocomposites at mPackting: from concept to mBlack™

At Minelli, innovation is always rooted in materials. Through mPackting, the division dedicated to sustainable beauty packaging, we have translated the principles of biocomposite technology into solutions tailored for cosmetics.

mBlack™ is the most representative example. This proprietary biocomposite combines biochar derived from wood with a bio-based matrix, creating a material that is OK Biobased and OK Biodegradable (TÜV Austria certified). The result is a surface with a deep matte aesthetic and velvety touch, designed to communicate luxury and responsibility.

Unlike generic biocomposites, which are often developed for industrial or technical uses, Minelli’s biocomposites are engineered for premium applications. With mPackting, beauty brands can rely on materials that combine:

  • Certified sustainability: renewable resources, biodegradable matrices, FSC®-certified sourcing;
  • Premium aesthetics: matte surfaces, tactile richness, or distinctive cork textures;
  • Design versatility: compatibility with advanced decoration, engraving, and finishing techniques.

Through this material innovation, mPackting redefines biocomposites as a strategic resource for beauty packaging, turning eco-conscious materials into distinctive brand assets.

Minelli Wood: where biocomposites meet beauty

At Minelli, we believe that materials shape perception. With mPackting, we transform biocomposites into premium components that combine aesthetics, performance and ecological responsibility.

Whether you are developing a new fragrance, a skincare line or a refillable collection, our integrated expertise enables us to co-design, prototype, and produce with purpose. 

Contact us to start shaping your next project with Minelli.