SIV Biome Balancing Serum

Balance your skin’s ecosystem with the SIV Biome Balancing Serum — thoughtfully designed to support your microbiome and restore calm, healthy skin.

This lightweight serum blends moisture-rich oils and spore-based technology to adapt to your skin’s natural biology. If your skin is feeling sensitive, irritated, or just out of sync, this can help renew harmony and radiance.

Key Benefits

• Reinforces and balances the skin microbiome for healthier-looking complexion

• Instant soothing for irritation, redness, or reactive skin

• Hydrates deeply without feeling greasy — thanks to squalane and caprylic/capric triglyceride

• Gentle and kind: free of fragrance and harsh irritants, non-comedogenic and suitable for all skin types

Hero Ingredients

• Squalane — a skin-mimicking oil that boosts moisture and smoothness

• Caprylic/Capric Triglyceride — lightweight emollient that seals in hydration

• Glyceryl Caprylate — plant-derived, helps support natural moisture and microbial balance

• Bacillus Spores — spore-based technology that works with your skin biology to regulate imbalance and maintain a healthy skin foundation 

How to Use

1. Shake the dropper well before each use (this disperses the Bacillus spores evenly). 

2. Apply 2-5 drops to clean skin (face, neck, or target areas). Use either damp or dry skin.

3. Apply after toner and before moisturizer.

4. Use once daily to start. Increase frequency as tolerated. Always follow with SPF in the morning.

Perfect For

Anyone with sensitive, reactive, or imbalance-prone skin. Also great after treatments or on off days when skin needs extra calm and support.