SIV

BIOME BALANCING DAILY SERUM

An Elevated Experience. The Same Trusted Formula.

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

This personalized approach supports and strengthens the skin's ecosystem at its foundation, helping build resilience and maintain a balanced skin microbiome while hydrating, calming, and soothing skin.

Now available in a refined glass bottle with a precision dropper and two sizes — the same trusted formula in an elevated experience.

Size
$79.00
Full Ingredients List

Lightweight & stabilizing formula containing physiologically identical ingredients that your skin recognizes.

  • Squalane: Biomimetic oil derived from non-GMO sugarcane that mimics squalene and supports skin hydration.
  • Caprylic/Capric Triglyceride: A mixture of caprylic and capric fatty acids derived from palm oil that helps replenish the skin's surface and resist moisture loss.
  • Glyceryl Caprylate: A natural, plant-based emollient derived from glycerin and plant fatty acids that helps restore oils and regulate skin moisture.
  • Bacillus: A proprietary blend of Bacillus spores designed to support a healthy skin foundation and positively influence the unique skin biome.
How to Use
Before use, shake vigorously. Apply 1–3 drops once daily. Pat into dry or damp skin. Apply after cleansing or toning.
Benefits
Non-comedogenic · Non-irritating · Clinically tested · Clinically proven · Kind to skin · Safe for skin · Dermatologically tested · Safe for sensitive skin · Dermatologist approved · Suitable for all skin types.
Caution
Do not use around or near the eye area. Do not use if allergic to any ingredients. Discontinue use if irritation occurs. Avoid contact with eyes; if contact occurs, immediately rinse with water. If you have highly sensitive skin, test first on a small area of skin.
Why the Upgrade

Glass Packaging — A luxurious, sustainable design that protects the integrity of your serum.

Enhanced Usability — A refined dropper for precise application.

More of What You Love — Available in both 15mL and 30mL.

Same Science-Backed Formula — No change to the formula, just a more premium experience.

I see clumps in my serum. Is that normal?

Yes. Natural settling and clumps are expected because the serum is intentionally formulated without fillers or suspension agents. Small white or beige particles are the carriers for the bacterial strains and may settle into a fine beige sediment at the bottom.

Shake vigorously until the sediment is fully dispersed, then apply as usual. The ingredients will naturally settle again after the bottle is set down, so simply shake before each application.

Temperature during shipping can also affect how tightly particles cluster. A few extra shakes will return the serum to a fine, even consistency.

01

Supports Balance

Promotes a harmonious skin environment for improved texture and tone.

02

Delivers Vibrance

Enhances your skin's natural radiance by supporting a healthy microbiome.

03

Builds Resilience

Strengthens your skin's defenses against environmental stressors and aging.

SIV Biome Balancing Serum 15 mL and 30 mL

SIV Biome Balancing Serum

Your Daily Biome Step.

15mL | 30 Day Supply Perfect for first-time users.
30mL | 60 Day Supply Offering better value.

Before use, shake vigorously. Apply 1–3 drops once daily. Pat into dry or damp skin. Apply after cleansing or toning.

Topical Spore Serum

Bacillus spores support a healthy skin foundation and visibly improve skin complexion.

Skin Identical

Lightweight, stabilizing formula containing physiologically identical ingredients that your skin recognizes.

Your Face Is Your Base

Before use, shake vigorously. Apply 1–3 drops once daily and pat into dry or damp skin after cleansing or toning.

The Formula

Four Intentional Ingredients.

Lightweight, stabilizing and built around skin-recognizable components, paired with SIV's proprietary Bacillus spore blend.

Squalane ingredient texture

Squalane

Biomimetic oil derived from non-GMO sugarcane that mimics squalene and is beneficial in promoting skin hydration.

Caprylic Capric Triglyceride ingredient texture

Caprylic/Capric Triglyceride

A mixture of caprylic and capric fatty acids derived from palm oil; helps replenish the skin's surface and resist moisture loss.

Glyceryl Caprylate ingredient texture

Glyceryl Caprylate

A natural, plant-based emollient derived from glycerin and plant fatty acids that helps restore oils and regulate skin moisture.

Bacillus spore ingredient

Bacillus

A proprietary blend of Bacillus spores designed to support a healthy skin foundation, positively influence the unique skin biome and establish balance.

The Biology of Resilience

Give Your Skin Its Biome Step.

Choose your size above and add the original SIV Biome Balancing Serum directly to your Shopify cart.