SIV BIOME BALANCING SERUM

Product Overview

SIV Biome-Balancing Serum is an innovative, oil-based, spore-powered facial serum designed to support a balanced skin microbiome, calm visible irritation, and strengthen the skin's natural protective barrier.

Unlike traditional serums that focus solely on hydration or correcting visible skin concerns, SIV introduces beneficial Bacillus bacterial spores to the skin. These spores are designed to interact with the skin's existing microbiome, helping support a healthier balance of bacteria and a more resilient skin environment.

The minimalist formula combines Bacillus spores with skin-compatible lipids, including squalane, caprylic/capric triglyceride, and glyceryl caprylate. Together, these ingredients help replenish moisture, support the skin barrier, and promote softer, more comfortable skin.

With its gentle, oil-based formula and microbiome-focused approach, SIV is especially appealing for sensitive, reactive, or easily irritated skin that needs additional support without introducing aggressive active ingredients.

Good For

• Sensitive or easily irritated skin

• Supporting a balanced skin microbiome

• Introducing beneficial Bacillus bacterial spores to the skin

• Maintaining a healthy skin barrier

• Dry or dehydrated skin

• Visible redness and skin discomfort

• Supporting skin exposed to environmental stressors

• Clients seeking a gentle, oil-based microbiome serum

Why I Recommend It

I especially appreciate SIV Biome-Balancing Serum for sensitive skin types that need additional support for their skin's microbiome and protective barrier.

What makes this product unique to me is its use of beneficial Bacillus bacterial spores in an oil-based formula. Rather than simply focusing on the bacteria already present on the skin, SIV introduces beneficial bacterial spores that interact with the skin's existing microbiome to help support a healthier balance.

I also appreciate the inclusion of skin-compatible lipids that provide moisture and support the barrier. For clients experiencing sensitivity, visible redness, or skin discomfort, I like having an option that focuses on supporting the skin's natural environment without relying on aggressive exfoliation.

It's a product I consider when creating personalized routines for clients who need a gentler approach to microbiome and barrier support. Healthy skin isn't about eliminating all bacteria; it's about maintaining an environment where the skin's natural protective functions can thrive.

How to Use

Shake the bottle vigorously before every application to evenly disperse the Bacillus spores throughout the formula. Some visible settling or small particles are normal.

After cleansing and toning, apply 1–3 drops to clean fingertips and gently pat into dry or slightly damp skin.

Use daily as recommended. Apply before your other serums and moisturizer, then finish with broad-spectrum SPF during the day.

Avoid applying near the eyes. If your skin is highly sensitive, patch test before introducing the serum into your full routine.

If using a leave-on benzoyl peroxide product, apply it at a different time of day from SIV unless otherwise directed by your skincare professional.