WHAT MAKES FERMENTED INGREDIENTS SPECIAL? 1. Fermented ingredients have a higher concentration of antioxidants and nutrients than non-fermented versions of the same ingredients. The fermentation process itself also produces additional skin-beneficial ingredients, such as amino acids and peptides. 2. There's also promising scientific evidence that some lactobacillus ferments help treat and prevent acne and rosacea. The mechanism by which this is achieved is still being explored, but the speculation is that this effect is due to a combination of the protective, "shielding" effect lactobacillus provides for skin cells, the antibacterial effect of bacteriocin produced by lactobacillus, and the anti-inflammatory effect of lactobacillus.