In a world where skin and gut health are increasingly interconnected, concepts like microbiota, skin barrier, or intestinal immunity have become common language for the conscious consumer. This shift has driven a new wave of innovation centered on postbiotics—fermented ingredients that offer tangible benefits in both cosmetics and nutrition.
At Admixtio, we support brands that want to go beyond trends and formulate with functional, stable, and evidence-based active ingredients. Among these, postbiotics stand out as a category of growing interest.
What is a postbiotic?
According to the definition established by the ISAPP (International Scientific Association for Probiotics and Prebiotics), a postbiotic is:
“A preparation of inanimate microorganisms and/or their components that confers a health benefit on the host.”
This includes:
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Bioactive metabolites generated during fermentation (short-chain fatty acids, peptides, enzymes…)
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Cell fragments, bacterial wall, or other by-products from the inactivated culture
Unlike probiotics or prebiotics, postbiotics do not need to be alive to be effective, which makes them safer, more stable, and easier to integrate into cosmetic formulations or dietary supplements.
Benefits of Postbiotics
In natural cosmetics:
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Reinforcement of the skin barrier
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Regulation of the skin microbiome
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Improved hydration and radiance
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Soothing and anti-inflammatory effect for sensitive skin
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Stimulation of collagen and antioxidant activity (anti-aging)
Postbiotics are used in products targeting sensitive, aging, or reactive skin, especially in formats like serums, toners, or light emulsions.
In functional nutrition:
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Modulation of the gut-associated lymphoid tissue (GALT)
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Improved digestion and intestinal mucosa integrity
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Reduction of systemic inflammation
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Synergistic potential with probiotics and prebiotics
They are widely used in oral supplements focused on gut health, immunity, metabolism, and general wellness.
Types of Postbiotics and Plant-Based Origins
Many postbiotics result from fermentation processes based on:
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Plant extracts: carrot, beetroot, kale, green tea, etc.
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Agri-food by-products: grape pomace, olive pulp, coffee grounds
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Grains and legumes: rice, barley, quinoa, fermented soy (tempeh)
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Functional fungi and algae: kombucha, reishi, shiitake…
Through controlled fermentation, the bioavailability of active compounds is enhanced, and new bioactive molecules are generated that are not present in the original extract.
Advantages for Formulators and Brands
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High stability under temperature, oxidation, and pH
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Clean label: safe, well-regulated ingredients without live microorganisms
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Microbiome-friendly trend: aligned with the modern consumer
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Scientifically backed ingredients with an innovative narrative
How Can Admixtio Help?
At Admixtio, we provide both technical and strategic support to help you:
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Identify postbiotic ingredients with proven functionality
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Integrate them into cosmetic or nutritional formulations with purpose
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Assess their properties depending on skin type, application, or target benefit
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Build an authentic brand story rooted in science and innovation
Recommended References and Web Resources
Interested in working with postbiotic ingredients?
Contact us. At Admixtio, we help you turn scientific sustainability into real and effective innovation.
