COVER STORY: ELEMENTIS ADVERTISEMENT FEATURE
2–4% Naturaluxe™ MFF retained over 90% of their SPF after water exposure, compared to just 72% in control formulations (Figure 1). In mineral sunscreens, SPF retention
more than doubled, demonstrating its ability to maintain protection under challenging conditions (Figure 2).
Improved mineral filter dispersion Naturaluxe™ MFF enhances the dispersion of mineral UV filters such as zinc oxide and titanium dioxide, resulting in smoother, more uniform films and improved water resistance. Microscopy images confirm significantly better dispersion and coverage compared to controls (Figure 3A and 3B).
Alcohol and solvent compatibility Naturaluxe™ MFF remains stable and clear in high-alcohol systems (up to 80% ethanol), outperforming competitive polyesters that show turbidity or precipitation (Figure 4).
Formulation benefits and flexibility Naturaluxe™ MFF is a 100% active, fluid polymeric emollient designed for versatility and ease of use in sunscreen and personal care formulations. It can be incorporated at low use levels – typically between 2–4%, making it both cost-effective and efficient. One of its standout advantages is its cold
processability, which allows formulators to bypass heat-intensive steps, resulting in operational flexibility and significant energy savings during production. Naturaluxe™ MFF performs optimally at a
neutral pH range of 6.0–6.5 and demonstrates broad compatibility with a wide array of traditional sunscreen ingredients, emollients, and hydrocarbons. Its formulation benefits include a non-tacky dry-down phase that leaves a silky-smooth, pleasant skin feel, enhancing user experience and encouraging reapplication. It also blends seamlessly with both synthetic
and natural solvents without affecting the colour or odour of the final product, preserving the aesthetic integrity of the formulation. Thanks to its versatility, Naturaluxe™ MFF is
Control no film former A B
7
Figure 3A: ZnO dispersion under microscope with Naturaluxe™ MFF
suitable for use in oil-in-water sunscreens, colour cosmetics, and skin care products, making it a valuable multifunctional ingredient for modern, performance-driven formulations.
End-user and environmental benefits For consumers, Naturaluxe™ MFF delivers a superior sensory experience and reliable sun protection. Its ability to form a consistent, water-resistant film reduces the risk of sunscreen wash-off, helping to lower the incidence of sunburn and related skin conditions. The ingredient’s non-tacky, lightweight
feel encourages proper application and reapplication, supporting better real-world protection. From an environmental perspective,
Naturaluxe™ MFF is non-persistent and biodegradable, This aligns with growing regulatory and consumer demands for microplastic-free and environmentally responsible sun care products.
Regulatory and safety profile Naturaluxe™ MFF has been thoroughly evaluated to meet the stringent safety and regulatory standards required for personal care ingredients, ensuring its suitability for global sun care and skincare applications. Toxicological assessments confirm that
the ingredient is non-toxic via both oral and dermal routes, with LD50 values exceeding
5% Naturaluxe™ MFF
Competitive polyester
Figure 3B: ZnO dispersion under microscope without Naturaluxe™ MFF
2000 mg/kg, indicating a high margin of safety. It has also been shown to be non- irritating to both skin and eyes, making it appropriate for use in formulations intended for sensitive skin. Genotoxicity testing, including the Ames
assay, demonstrated that Naturaluxe™ MFF is non-mutagenic, and standard sensitisation studies confirmed it does not induce allergic skin reactions. Its composition is based on monomers that are already widely used and accepted in the personal care industry, which supports regulatory compliance and facilitates market approval across regions. Furthermore, its biodegradable nature and high natural origin content align with growing regulatory and consumer demands for environmentally responsible ingredients. This robust safety and regulatory profile
makes Naturaluxe™ MFF a reliable and forward-looking choice for formulators seeking to innovate without compromising on safety or compliance.
Conclusion Naturaluxe™ MFF represents a significant leap forward in sunscreen formulation technology. By combining high-performance film formation, superior water resistance, and a light, pleasant skin feel with genuine sustainability credentials, it enables formulators to meet the evolving demands of today’s sun care market. Whether the goal is to create next-generation
mineral sunscreens, lightweight sprays, or eco- friendly daily wear products, Naturaluxe™ MFF provides the technical foundation for innovation – without compromise.
References 1. Mintel report patent insights in sunscreen 2. Mintel databook suncare skin protection US 3. Mintel report patent insights in sunscreen 4. Mintel GNPD Spain top 10 claims June 2023 - 2025
5. Mintel. APAC suncare brands: Responding to changing consumer needs
PC
Figure 4: Ethanol compatibility of Naturaluxe™ MFF versus control and competitive polyester
www.personalcaremagazine.com
Elementis PLC The Bindery 5th Floor 51 – 53 Hatton Garden London EC1N 8HN United Kingdom
www.elementis.com
November 2025 PERSONAL CARE
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