Siv

SIV Biome-Balancing Serum

$74.00
$74.00
Introducing the SIV Biome-Balancing Serum—an innovative, spore-based formula designed to work with your skin’s natural biology. The...

Introducing the SIV Biome-Balancing Serum—an innovative, spore-based formula designed to work with your skin’s natural biology. The Spore-Based Biome Balancing Serum is a topical formula that adapts to your unique skin microbiome, establishing a healthy skin foundation through quorum-sensing technology.

This personalized approach to skincare harnesses your biology to support and strengthen your skin’s ecosystem at its foundation, helping to build resilience and maintain a balanced skin microbiome. This serum is your go-to solution for hydrating, calming and soothing sensitive or irritated skin.

Squalane, Caprylic/Capric Triglyceride, Glyceryl Caprylate, Bacillus

Shake well before use. Apply to clean skin as the first step in your routine.


Press the bottom of the dropper to release 1-2 drops. Use 1–2 drops on damp skin, gently patting or rubbing. Allow to dry (1–2 minutes) before continuing your routine.
See the AOS Insider Tips above for advice on treating specific concerns.

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