Kerabiotics 6 Bottles AuKeraBiotics: A Natural Approach to Toenail Care KeraBiotics presents a natural formulation inspired by traditional practices of an Amazonian tribe, designed to support toenail health. This product focuses on restoring the microbiome of toenails by introducing beneficial bacteria, which can contribute to healthier skin and nails. The proprietary blend includes advanced probiotics, exotic herbs, deionized water, aloe vera juice, and various peptides.