SIV Biome Balancing Serum
- Adapts to your skin's unique microbiome
- Helps strengthen skin barrier
- Calms & soothes red, irritated skin
SIV Biome Balancing Serum is backordered and will ship as soon as it is back in stock.
0.5 fl oz
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Balances Microbiome
Supports beneficial skin flora
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Hydration Boost
Locks in moisture without heaviness
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Calm & Soothe
Reduces redness and irritation
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Strengthens Barrier
Repairs & protects skin barrier

- Details
- Benefits
- Ingredients
- FAQ
SIV Biome Balancing Serum: Rebalance, Soothe & Strengthen Your Skin
SIV Biome Balancing Serum is a next-generation, spore-based topical formulation that adapts to your skin’s unique biology. Using quorum-sensing technology, it supports a healthy skin microbiome, helping to calm sensitivity, reduce redness, and build resilience from the foundation up.
Clinical Highlights
- Clinically tested and proven to improve skin tone, clarity, and texture.
- Spore technology targets overgrown bacteria and supports beneficial species to promote a balanced microbiome.
- Safe, non-comedogenic, dermatologically tested, and suitable for sensitive skin.
- Visible improvements in redness, lesion count, and hydration observed in real-use studies over days and weeks.
- Formulated with only 4 ingredients.
Why You’ll Love It
You’ll appreciate its lightweight, stabilizing formula that your skin “recognizes” — featuring biomimetic squalane and plant-based emollients. It feels comfortable on the skin, layers well, and delivers benefits without irritation or heavy residue.
Who It’s For
This serum is ideal for anyone seeking to support or restore their skin barrier and microbiome, especially those with sensitive, reactive, redness-prone, or combination skin. It is formulated to be gentle enough for daily use and suited for all skin types.
According to SIV, the Biome Balancing Serum can help improve skin tone, redness, texture, and clarity, reduce acne lesion count, acne blemishes, skin irritation, and eczema.
Say goodbye to redness and irritation, SIV Biome Balancing Serum supports healthier, clearer skin every day.
- Helps reduce redness, sensitivity, and inflammation
- Supports balance of skin microbiome by regulating bacterial populations
- Improves skin tone, clarity, and texture
- Boosts hydration and resiliency
- Lightweight and non-comedogenic, ideal for layering
Restore balance to your skin’s microbiome with a spore-powered serum that calms, hydrates, and strengthens.
How to Use
- Before use shake the dropper vigorously until the bottom is clear to fully disperse the Bacillus spores. Check the bottom, if it is clear, it is ready to use!
- Apply 2 to 5 drops, either in your hands first or directly to target areas, onto damp or dry skin, once daily.
- Use after toner and before moisturizer for optimal results.
Please note: Avoid contact with eyes. If contact occurs, rinse thoroughly with water. For highly sensitive skin, perform a patch test before full application. Do not use if you are allergic to any listed ingredients. Discontinue use if irritation develops.
Consistent use maximizes benefits; apply daily to strengthen your skin’s foundation.
Key Ingredients:
- Squalane: Biomimetic oil derived from non-GMO sugarcane that mimics skin’s natural lipids and boosts hydration.
- Caprylic/Capric Triglyceride: A blend of fatty acids that replenishes surface lipids and reduces moisture loss.
- Glyceryl Caprylate: A plant-based emollient that helps regulate moisture, soothe skin, and restore balance.
- Bacillus (proprietary spore blend): This patented spore complex supports a healthy skin foundation, modulates overgrown bacteria, and promotes growth of beneficial species to rebalance the microbiome.
Backed by clinical science, this lightweight formula helps your skin feel calmer, stronger, and more resilient.
Full Ingredients: Squalane, Caprylic/Capric Triglyceride, Glyceryl Caprylate, Bacillus.
Ingredients may change. Please check the packaging for the most current list.
What makes SIV Biome Balancing Serum different from other serums?
Unlike conventional serums, SIV uses a spore-based quorum sensing technology that works with your skin’s biology to support microbiome balance rather than just delivering actives.
Can I use this serum with other actives like retinol or vitamin C?
Yes, it is formulated to be gentle and non-irritating. It layers well and can be integrated into a routine containing actives, start slowly, and monitor your skin’s tolerance when using in conjuction with other products..
How long before I see results?
Users have reported reduced redness within 10 days, improved clarity and tone by day 24, and sustained skin texture improvements over longer use. Results vary from person to person.
Is this safe for sensitive or reactive skin?
Yes, this formula is non-comedogenic, non-irritating, dermatologically tested, and designed to be safe even for sensitive skin. However, perform a patch test if your skin is extremely reactive.
Can this be used on children?
Yes. It is safe for all ages. As with any product, check with a pediatrician before use.
How often should I use it, and how much is needed?
Use once daily; 2 to 5 drops is sufficient to cover your face or target zones. Overuse does not enhance the effect.
Discover SIV Biome Balancing Serum and reveal smoother, more radiant skin with advanced microbiome technology that works in perfect harmony with your complexion.
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Frequently Asked Questions
Shipping
How much does shipping cost?
How much does shipping cost?
Free Shipping
Free standard shipping is available on domestic orders that meet the minimum product total shown in the site banner ($75). Shipping fees are not included in the qualifying amount.
Shipping Rates
- USPS Ground Advantage - $10
- UPS - Calculated at Checkout
Shipping Extras
- Signature Confirmation available for $3.00
Do you ship on the same day?
Do you ship on the same day?
Fast Shipping
We ship Monday to Friday, from our spa in Florida.
Same Day Shipping Deadlines
- Monday to Friday - Order by 2 pm PST
- Saturday, Sunday, Holidays - No Shipping
What countries do you ship to?
What countries do you ship to?
We currently ship to the United States.