This serum is one of the most exciting new skincare products available in Ireland
A ground-breaking new serum has landed in Ireland, and it’s the product everyone needs to add to their skincare routine.
Monica Tolan Skin Experts are now stocking the SIV Biome-Balancing Serum (€90.00) both in-salon and online.
This pioneering skincare innovation is designed to adapt to your skin’s unique microbiome, establishing balance and resilience from within.
Harnessing the power of spore-based technology, the SIV Biome-Balancing Serum works with your skin’s natural biology to restore harmony and strengthen the skin barrier. Its quorum-sensing formula reads and responds to your skin’s microbial environment, helping to rebuild a healthy foundation for calm, hydrated, and radiant skin.
This innovative serum targets one of skincare’s newest concerns, “leaky skin”, a condition that arises when the skin barrier becomes compromised due to microbiome imbalance. By rebalancing the skin’s ecosystem, SIV helps prevent inflammation, dryness, and accelerated ageing, leaving the skin looking smoother, more even, and deeply nourished.
“SIV is unlike any serum our clients will have tried before; it’s not just another product to sit on your shelf. It’s designed for those who have tried everything and are still struggling with inflammation, acne, or conditions like dermatitis and perioral dermatitis. If your skin’s microbiome is disrupted, nothing else will truly settle it, and that’s where SIV stands apart.

“It works with your skin’s unique biology to restore balance, calm irritation and bring the skin back to health from within. For anyone dealing with sensitivity or ongoing inflammation, this is a genuine game-changer.”
Corinna Tolan explained why the serum is such a game-changer:
“In my thirty years working with skin, I have learned that inflammation is one of the biggest drivers of accelerated ageing, pigmentation, redness and overall skin instability. What most people do not realise is that the skin’s immune system is guided by its microbial ecosystem.
@elevenesthetician siv biome balancing serum is truly life changing and i will never stop spreading awareness on this magical revolutionary product. for rosacea, acne, eczema, dermatitis and a damaged skin barrier 🦠 #siv #skinbarrier #rosacea #eczema #perioraldermatitis ♬ original sound – elevenesthetician
“When that ecosystem becomes disrupted even slightly, the skin becomes reactive, sensitive, and slow to heal.”
“SIV Biome Balancing Serum supports the skin by restoring harmony in this microbial environment, which naturally lowers inflammation, strengthens the barrier and improves the way the skin repairs itself. For anyone dealing with irritation, redness, barrier disruption, or simply wanting to protect their skin during the winter months and improve long-term skin health, SIV is a powerful addition to a daily routine.”
How to Use:
Shake vigorously before use. Apply 1–3 drops once daily to clean, dry, or damp skin. Gently pat into the skin before moisturiser to lock in hydration.
Free from added fragrance, SIV is formulated with biocompatible ingredients to ensure harmony with your skin microbiome. Any subtle scent comes naturally from the active compounds used and dissipates quickly.
Buy here.