We just brought in a new serum that's a little different from anything else on our shelves — the SIV Biome Balancing Serum. If you've seen "microbiome" on a skincare label and wondered what it actually means for your skin, here's the breakdown.
What Is Your Skin Microbiome?
Your skin is home to trillions of bacteria, fungi, and other microorganisms — collectively called your skin microbiome. When that ecosystem is balanced, your skin barrier stays strong, hydration stays put, and skin looks calm and healthy. When it's out of balance (from over-exfoliating, harsh products, stress, or yes, regular waxing), you can end up with irritation, breakouts, sensitivity, or a compromised barrier that makes everything else — including waxing — feel harsher than it should.
How SIV Is Different From a Typical Serum
Most serums work by adding one specific active ingredient and hoping it does its job. SIV takes a different approach: it's a spore-based formula built around a proprietary blend of Bacillus spores that use quorum-sensing technology to interact directly with your skin's existing bacteria.
In plain terms: instead of just sitting on top of your skin, SIV helps target overgrown, problematic bacteria while supporting the growth of the beneficial bacteria your skin actually needs — helping re-establish balance at the source rather than just treating symptoms on the surface.
Alongside the spore complex, the formula includes:
- Squalane — a biomimetic, sugarcane-derived oil that mirrors your skin's own natural oils to support hydration
- Caprylic/Capric Triglyceride — helps replenish the skin's surface and resist moisture loss
- Glyceryl Caprylate — a plant-derived emollient that restores oils and regulates skin moisture
The result is a lightweight formula made of ingredients your skin already recognizes, rather than something foreign it has to adjust to.
Who It's For
SIV is formulated to be non-irritating and non-comedogenic, and it's suitable for all skin types — dry, normal, or oily. It's a good fit if you deal with any of the following:
- Dry skin that other moisturizers don't seem to fix
- Skin that feels reactive, tight, or easily irritated, including eczema-prone or sensitized skin
- Occasional breakouts or acne-prone areas, since a balanced microbiome supports a healthier surface overall
- A recurring struggle with ingrown hairs, since calmer, better-hydrated skin is less prone to the inflammation that causes them
- A general goal of building a calmer, more resilient skin barrier over time
- Skin that feels extra sensitized after regular waxing
A quick note: SIV is a cosmetic skincare product, not a medical treatment. It's formulated to support your skin's barrier and microbiome balance, which can make dry skin, reactive skin, occasional breakouts, and ingrown-hair-prone areas more comfortable overall — but if you have a diagnosed condition like eczema or persistent acne, it's worth treating this as a complement to your dermatologist's guidance rather than a replacement for it.
How to Use It
Shake well before each use, then apply 1-3 drops to dry or damp skin once daily, ideally right after cleansing or toning — before your moisturizer. Because it's working with your skin's biology rather than delivering a quick surface effect, consistency matters more than quantity here. Daily use over several weeks is what lets your microbiome actually rebalance.
Why We're Carrying It
A lot of what disrupts your skin barrier — sun, exfoliation, product buildup — is the same stuff that can make waxing more uncomfortable or lead to irritation afterward. A calmer, more balanced skin barrier going into your appointment (and staying consistent with it between appointments) can make a real difference in how your skin handles the service and how quickly it settles afterward.