FORMULATION 123


alkane-driven lightness are deeply embedded in consumer expectations, particularly in skin, hair care and make-up. From a technical standpoint, these sensations


are extremely difficult to reproduce without petrochemical chemistry. Silicones combine low surface tension, flexibility, and volatility in ways that natural materials cannot directly replicate. The critical insight is that sensorial success


does not require identical sensations. Instead, it requires coherence between sensory cues and product positioning. Biobased formulation chassis enable alternative sensorial profiles: cushioned glide, structured creaminess, adaptive viscosity, and progressive absorption. These sensory signatures may differ from


silicone benchmarks, but they can be equally pleasing - and in some cases, perceived as more authentic or premium when aligned with sustainability narratives.


Bacterial cellulose as a structuring platform Among emerging biobased polymers, bacterial cellulose represents a particularly promising structuring platform. Unlike plant derived cellulose derivatives, bacterial cellulose is produced via fermentation and exhibits a highly pure, nanofibrillar network. This unique morphology translates into


distinctive formulation properties: Three-dimensional fibrillar networks capable


Figure 3: SEM image of Bacterial Cellulose (Rheoweg 100) showing a three-dimensional fibrillar networks


of structuring water without chemical crosslinking. High water binding capacity leading to stable,


elastic gels. Shear responsive behaviour enabling good


spreadability despite high structural integrity. From a sustainability perspective, bacterial


cellulose aligns with key requirements: biobased origin, full biodegradability, and compatibility with circular production models. From a formulation standpoint, it invites a


departure from viscosity driven design toward network driven structuring.


www.personalcaremagazine.com


April 2026 PERSONAL CARE MAGAZINE


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