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According to the EU Packaging Regulation, plastic packaging must contain at least 35 percent post-consumer recycled content by 2030.
The global market for refillable packaging is growing significantly, driven by consumer demand and environmental policies.
Sustainable packaging requires twelve weeks of consistent compatibility testing in the laboratory before automated production starts.
The regulatory environment for cosmetics is undergoing structural changes. While brands have historically focused on ingredient safety, the European Packaging and Packaging Waste Regulation (PPWR) now also places packaging design under regulatory oversight. Entering into force in August 2026, the PPWR sets a strict timeline until 2030, by which almost all primary and secondary cosmetic packaging in the EU market must be designed for circularity. For established and growing beauty brands, compliance is therefore not merely an environmental issue, but a legal prerequisite for market access.
By 2030, plastic packaging must contain at least 35 percent post-consumer recycled (PCR) content.
Packaging components are assigned recyclability performance grades from A to E, with grade E components (less than 70 percent recyclable) being banned completely by 2030.
A strict empty space ratio of 50 percent applies to grouped, transport, and e-commerce packaging in order to avoid oversized cardboard boxes.
Transitioning to refillable, recyclable, or mono-material solutions is a demanding technical task. Replacing classic pumps, multi-layer closures, or thick-walled acrylic jars alters the protective barrier of the packaging. This is why early product development and structured formulation work are essential. If packaging materials change, the formulation must be rigorously tested for compatibility in our own laboratory to rule out sweating, separation, or weight loss before production begins. Labtree harmonizes these packaging changes with stable formulations and the tolerances of the filling line.
Regulatory Pressure: How the EU Packaging Regulation Is Changing Cosmetics
The regulatory environment for cosmetics is undergoing structural changes. While brands have historically focused on ingredient safety, the European Packaging and Packaging Waste Regulation (PPWR) now also places packaging design under regulatory oversight. Entering into force in August 2026, the PPWR sets a strict timeline until 2030, by which almost all primary and secondary cosmetic packaging in the EU market must be designed for circularity. For established and growing beauty brands, compliance is therefore not merely an environmental issue, but a legal prerequisite for market access.
By 2030, plastic packaging must contain at least 35 percent post-consumer recycled (PCR) content.
Packaging components are assigned recyclability performance grades from A to E, with grade E components (less than 70 percent recyclable) being banned completely by 2030.
A strict empty space ratio of 50 percent applies to grouped, transport, and e-commerce packaging in order to avoid oversized cardboard boxes.
Transitioning to refillable, recyclable, or mono-material solutions is a demanding technical task. Replacing classic pumps, multi-layer closures, or thick-walled acrylic jars alters the protective barrier of the packaging. This is why early product development and structured formulation work are essential. If packaging materials change, the formulation must be rigorously tested for compatibility in our own laboratory to rule out sweating, separation, or weight loss before production begins. Labtree harmonizes these packaging changes with stable formulations and the tolerances of the filling line.
Refill systems: Technically ensuring repeatable durability
The introduction of refillable packaging is a technical challenge that brings together formulation development, sampling, compatibility testing, and production scaling. This shift is accelerating globally as refillable systems increasingly become the standard in the premium segment. For beauty brands, successful implementation means that refillable pumps, jars, and tins must remain functional and visually flawless over many cycles of use.
Selection of the outer shell: Robust, impact-resistant materials such as thick-walled glass, aluminum, or PCTG ensure that the housing withstands long-term stress without cracks or visual defects.
Hygienic refill cartridges: Lightweight, replaceable inner cartridges with precise barrier layers protect the product from oxidation, prevent microbiological contamination, and maintain formulation performance.
Easy handling during refilling: Intuitive mechanical structures such as snap closures or thread guides enable a clean, uncomplicated cartridge replacement for end consumers.
At Labtree, we combine structural packaging design with the chemical formulation. In product and formulation development, our in-house laboratory conducts rigorous packaging compatibility tests. We evaluate how different packaging tolerances and barrier films interact with complex formulations, particularly in highly pigmented makeup formats and active skincare emulsions. Through systematic sampling, we resolve filling and dispensing mechanism issues early in development, delivering a production-ready formulation for smooth mass production.
The formulation challenge with refillable packaging
The shift to refillable systems has a direct impact on product development. When consumers open and refill containers, the formulation is exposed to increased risks, including contact with ambient air, dust, and microbial contamination. Managing this repeated exposure is critical to maintaining product integrity. Labtree addresses these challenges in early formulation development, ensuring that each product is designed for stability under real-world conditions.
Protecting product integrity and sensory profile. To prevent microbiological contamination during repeated opening and refilling cycles, our laboratory work optimizes preservation systems. We subject formulations to rigorous microbiological testing, such as a 28-day preservation challenge test, to guarantee safety and efficacy despite repeated exposure. In addition, sensitive active ingredients can degrade or oxidize quickly upon contact with air. We select robust stabilizers and work with airtight pouch or cartridge solutions to maintain efficacy throughout the product's lifespan.
Physical exposure also threatens the precise sensory profile of high-quality color cosmetics and skincare. In complex emulsions such as skin tints and concealers, evaporation can alter the water-to-oil ratio, leading to localized viscosity drift, clumping, or shade shifts. Through rigorous compatibility testing in our Hamburg laboratory, we evaluate how the formulation interacts with the refill unit and the outer protective casing. This ensures that the finished products retain their original color payoff, glide, and stability, even in scaled production.
Recyclable plastics: Use post-consumer recycled material
Integrating post-consumer recycled (PCR) plastics like PET, PP, or PE is a demanding technical task for brands preparing for the EU Packaging Regulation's 35% mandate by 2030. Unlike virgin materials, PCR plastics present significant physical and optical hurdles. Material degradation during recycling cycles alters tensile strength and thermal properties, making PCR packaging more susceptible to cracking under stacking pressure or failure during high-speed filling. Sourcing certified cosmetic-grade PCR that complies with strict chemical purity standards is essential to prevent the migration of contaminants into the formulation. At Labtree, our in-house laboratory work and early sampling address these mechanical risks through rigorous compatibility testing.
Optical variability and formulation protection. Optical consistency is a key challenge when switching to PCR, particularly for complex color cosmetic ranges such as blush, concealer, and foundation. PCR plastics inherently exhibit yellowish, gray, or greenish color deviations and increased turbidity. This complicates precise color matching in transparent or translucent packaging, as the container material alters the visual perception of the product shade. Furthermore, trace contaminants in recyclates can trigger odor migration, where residual smells compromise the olfactory profile of a fragrance-free formulation. The solution requires a structured analysis of current cosmetic trends that balances packaging characteristics and formulation performance.
Stress crack analysis: Standardized load tests to evaluate the integrity of PCR bottles and tubes under pressure.
Color deviation profiling: Spectrophotometric measurement of container batches to map the range of variability across multi-SKU lines.
Odor and migration testing: Multi-temperature incubation to ensure PCR contaminants do not trigger olfactory drift or chemical degradation.
Filling line compatibility: Adjusting torque, nozzle depth, and pressure parameters to accommodate the structural characteristics of PCR containers.
Mono-material packaging: Simplifying the recycling stream
The shift away from multi-layer mixed materials is a key focus for many brands adapting to sustainability trends and regulatory mandates. By utilizing single-polymer structures such as pure polypropylene (all-PP) or polyethylene (all-PE), brands can ensure that their packaging is fully recyclable in standard municipal recycling streams. Eliminating internal metal parts and multi-layer barriers simplifies automated optical sorting in recycling facilities and prevents entire batches from being discarded.
Technical Challenges in Single-Polymer Formats. Implementing mono-material systems requires careful engineering, as traditional cosmetics packaging utilizes different materials for different functions. For example, standard pumps operate with stainless steel springs, while multi-layer laminate tubes employ aluminum barriers to protect volatile ingredients. Modern mono-material alternatives must replicate this complex mechanics using a single polymer. During product development, our lab team conducts comprehensive compatibility and stability testing to ensure that the chemical profile of the formulation does not compromise the plastic barrier. For highly volatile makeup or skincare formulations, matching these barrier properties is critical to prevent evaporation, texture shifts, or color degradation before sale.
Metal-free pumps: Engineered polyolefin bellows or plastic springs replicate the tension of traditional metal springs, securing complete recyclability without disassembly.
Mono-material laminates: Co-extruded polyethylene or polypropylene layers provide equivalent mechanical strength without mixing incompatible polymer families.
Calibrated barrier coatings: Microscopically thin layers of ethylene vinyl alcohol or silicon oxide protect pigments in makeup and active ingredients in skincare from oxygen.
Packaging compatibility and stability testing in the laboratory
The transition to refillable, recyclable, or mono-material packaging requires the alignment of formulation development and physical material properties. If a brand switches to post-consumer recycled content or mono-material structures, the risk of chemical interactions increases. Through structured development work, our in-house laboratory evaluates these risks in the earliest phases. Early sampling allows for targeted compatibility tests to identify the leaching of active ingredients, micro-cracking, or visual changes before transitioning to mass production.
Standardized laboratory protocols must prove that the interaction between the bulk formulation and the sustainable barrier compromises neither product safety nor texture. A comprehensive assessment requires stress testing under static and dynamic conditions. This structural validation prevents formulation drift and ensures that the packaging remains functional during use.
Accelerated stability testing: Storage of the filled packaging at elevated temperatures, typically 37 to 45 degrees Celsius, over twelve weeks to simulate shelf life.
Migration testing: Analysis of whether active ingredients, lipids, or volatile compounds migrate into or react with sustainable materials such as PCR or bio-based plastics.
Mechanical stress testing: Consistent actuation tests of dispenser mechanisms, pumps, and closures to confirm functionality over repeated refill cycles.
By integrating these protocols into early product development, we create a reliable foundation for packaging compatibility. This systematic approach ensures that the switch to sustainable packaging is technically viable and brands can meet their launch dates.
The transition of a sustainable packaging concept into automated production requires intensive coordination between packaging geometry and formulation rheology. A mono-material stick or a PCR cream jar may look promising in the design phase, but material properties change under the mechanical stress of fast filling lines. PCR plastics often have thinner walls or lower structural strength than virgin materials and require careful calibration. To minimize this risk, Labtree conducts comprehensive packaging compatibility testing early in the development phase.
On the automated line, this transition demands precise technical calibration. For example, the pressure of the filling nozzle must be finely adjusted so that thin-walled PCR containers do not collapse or develop micro-cracks under vacuum or piston pressure. Likewise, handling uniquely shaped refill cartridges on high-speed conveyor belts requires special fixtures to keep the cartridges upright and prevent product leakage. These operational variables directly affect production costs and throughput speed. Through early sampling and in-house laboratory work, we identify these mechanical bottlenecks before series production begins.
Torque testing to confirm that mono-material closures remain permanently sealed.
Viscosity profiling of the bulk formulation for consistent pumpability through high-speed nozzle configurations.
Vacuum chamber stress testing of filled PCR units to detect micro-leaks during pressure changes.
Drop testing of the combined packaging and formulation to verify transport safety under real-world conditions.
Ultimately, successful sustainable packaging requires that the formulation, container, and automated line work together in perfect harmony. By combining rigorous packaging testing with custom formulation development, Labtree translates cosmetic concepts into lab samples, manufacturable formulations, and finished products that scale reliably from the very first run.
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FAQ
What new EU recycling rules apply to cosmetics packaging?
The European Packaging and Packaging Waste Regulation (PPWR), which comes into force in August 2026, stipulates that all cosmetic packaging placed on the EU market must be designed for recycling by January 1, 2030. Packaging will be graded from A to E. Grade E components, which are less than 70 percent recyclable, will be banned entirely by 2030. In addition, plastic packaging must contain at least 35 percent post-consumer recycled content by 2030.
How do refillable packaging systems affect cosmetic formulations?
Refill systems expose the formulation to more air, light, and potential microbial contamination during repeated refilling. Developers must therefore formulate more robust preservation systems, which are secured in the laboratory through stress and microbiological tests. The formulation must also preserve the sensory profile and nuances upon air contact. Airtight closures and stable refill cartridges are required to protect active ingredients in serums or complexion products.
What advantages does monomaterial packaging offer in cosmetics?
Mono-material packaging utilizes a single type of plastic, typically polypropylene or polyethylene, for the entire component including the container, closure, and pump. Traditional pumps with metal springs and multiple plastics are practically non-recyclable. Mono-material solutions avoid these difficult-to-separate materials, allowing the entire packaging to be placed into standard recycling streams without manual disassembly.
How does Labtree verify packaging compatibility for sustainable solutions?
Formulation development at Labtree includes physical compatibility testing in our own laboratory. We combine the formulation with the primary packaging under accelerated temperature conditions over a standard period of twelve weeks. During this process, we monitor interactions such as material leaching, swelling, cracking, discoloration, or the loss of volatile active ingredients. This ensures that the formulation, applicator, and container work together reliably before mass production begins.
What production challenges arise when filling sustainable packaging?
Production lines must adapt to the unique mechanical properties of PCR and refill components. Post-consumer recycled materials can be more brittle or exhibit slight dimensional variations, requiring precise calibration of torque and nozzle pressure to prevent cracking. Refill cartridges with unusual geometries often require specialized tooling on the filling line. Addressing these factors early in the sampling phase helps avoid bottlenecks during scale-up.
Why is it difficult to use post-consumer recycled material in luxury cosmetics?
Post-consumer recyclates often show slight yellow or gray casts as well as color fluctuations compared to virgin material, which presents a visual challenge for premium cosmetics. In addition, they can carry traces of processing odors that interact with the product's fragrance. B2B developers counter this by sourcing highly pure PCR grades and making adjustments to the formulation in the laboratory, so that foundations, blushes or premium creams retain their sensory profile and exact shade.
