SIV

SIV is a pioneering, microbiome-first skincare brand founded in 2021 by Isabel Vitale, with microbiome researcher Morgan Giusto joining as co-founder and COO. SIV harnesses the power of bacillus spores and quorum-sensing technology to create a truly personal skincare experience. Their flagship Biome-Balancing Serum is a lightweight, non-irritating formula that adapts to your skin’s unique biology—soothing irritation, reinforcing the skin’s barrier, and promoting resilience and vibrance. Clinically tested and science-driven, SIV offers a gentle yet potent foundation for healthier, balanced skin.