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In this article, we will be continuing our article series on the -biotic family members, and this time we will take a closer look at the postbiotics. We will review the main functions and purpose of the postbiotics, as well as explore if this group has any positive impact on our overall health and skin?
In simple terms, postbiotics are substances produced by microorganisms. A slightly more complex definition reveals that postbiotics are a complex mixture of metabolic products that are produced by probiotics such as live bacteria and yeasts. Postbiotics are generated in fermentation processes, where the microorganisms are producing various beneficial substances, or after lysis (breaking of the cell structure) of the microorganisms. Postbiotics are also produced naturally in the intestine or on the skin.
When it comes to skincare, the most common postbiotic ingredients used in cosmetics contain substances produced by lactic acid bacteria from the genus lactobacillus and or yeasts, especially various Saccharomyces species. The substances produced by the microorganisms are collected and separated from the living cells. The postbiotic substances include but are not limited to important vitamins, amino acids, peptides, fatty acids and various polysaccharides.
Postbiotics are shown to have a positive impact on our skin health. In the literature, postbiotics have been reported to have antioxidant, anti-inflammatory, anti-proliferative, and immunomodulatory action, besides promoting a more a diverse and balanced microbiome.
Postbiotics have historically been studied more in terms of gut health, but in recent years, their use on the skin has been studied more extensively. Bacterial extracts have proven to be efficient in alleviating acne and eczema conditions, other studies have reported that postbiotic ingredient had a positive impact on skin repair processes, soothing, anti-reddening effect, as well as anti-inflammatory, antimicrobial and anti-ageing activities.
Furthermore, postbiotics have been shown to improve the skin barriera nd accelerating the epidermal renewal. Some postbiotic ingredients are known for their antimicrobial properties and abilities to inhibit various bacteria that can be pathogenic, such as Pseudomonas aeruginosa and Staphylococcus aureus. Interestingly, the most relevant inhibitory effect was shown against acne causing bacteria.
The nutritional products that naturally increase postbiotic substances in our body are cottage cheese, high fibre foods (oats, product seaweed, and garlic), fermented pickles, kimchi, kombucha, sauerkraut and yogurt.
When it comes to cosmetics, the majority of postbiotics that are on the market are derived from bacteria, most commonly – lactic acid bacteria, Lactobacillus genera. The great part consists of lysates, from which the most known are organic acids, polysaccharides, peptides and various compounds from the bacteria and yeast cells. To sum up, when looking out for postbiotics in skincare products, we would suggest looking for ferment or lysate components. A couple of examples would include lactobacillus ferment, lactobacillus lysate, and Bifidobacterium lysate.
Postbiotics in Skinome products
Our products contain two types of postbiotic ingredients - Lactobacillus ferment and Lactobacillus (rice ferment).
Used in our products to moisturize the skin and prevent the growth of bad bacteria. This ferment is found in our Mineral and Sensitive Cleanser.
A patented postbiotic ingredient that has anti-inflammatory properties, helps bind moisture in the skin, strengthens the skin's immune system and balances the natural skin flora. This ingredient is found in our Light Emulsion.
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