The Role of Prebiotics, Probiotics & Postbiotics in Skincare | Microbiome & Skin Barrier Repair
By Julia Hart, The Electric Facialist
The future of skin health is microbiome-first
If there’s one shift happening in skincare right now — and one I deeply align with — it’s this:
We’re moving away from stripping, over-correcting and damaging… and towards working with the skin.
This is where microbiome skincare comes in.
And brands like Esse Skincare, founded by Trevor Steyn, have been quietly leading this space for years — long before it became a trend.
What is the Skin Microbiome?
Your skin isn’t just skin.
It’s a living ecosystem of billions of bacteria, fungi and microorganisms that:
- Protect against pathogens
- Regulate inflammation
- Support hydration
- Maintain pH balance
- Strengthen the skin barrier
When this ecosystem is balanced → skin is clear, calm, resilient
When it’s disrupted (what we call dysbiosis) → we see:
- Acne
- Rosacea
- Eczema
- Sensitivity
- Accelerated ageing
A healthy microbiome is directly linked to stronger, more resilient skin barrier function. Shop "Microbiome Skincare"
Prebiotics, Probiotics & Postbiotics — What’s the Difference?
Let’s simplify this (in true “Intuitive Skincare” style):
1. Prebiotics — The Food
These are ingredients that feed your good bacteria.
Think:
- Inulin
- Plant sugars
- Fibres
They increase microbial diversity, which is essential because low diversity = skin issues like acne and rosacea
This is often where the real power lies in skincare formulations.
2. Probiotics — The Living Intelligence
These are live (or sometimes lysate) bacteria that help rebalance the skin.
They can:
- Reduce inflammation
- Strengthen the skin barrier
- Calm immune responses
- Improve resilience
Research shows they can act as a protective shield, producing antimicrobial peptides and reducing inflammatory responses in the skin
And this is exactly what Trevor Steyn focused on — even developing live probiotic serums with high concentrations of beneficial microbes.
3. Postbiotics — The Active Results
These are the by-products of probiotic activity — and often the most stable and effective in skincare.
They include:
- Peptides
- Enzymes
- Organic acids
- Antimicrobial compounds
Postbiotics:
- Soothe inflammation
- Strengthen the barrier
- Support hydration
- Improve skin repair
Many “probiotic” skincare products are actually postbiotic-rich formulations (and that’s not a bad thing).
Why This Matters for Skin Barrier Health
The skin barrier = everything
When your barrier is strong:
- Water stays in
- Irritants stay out
- Inflammation stays low
When it’s compromised:
- Sensitivity increases
- Breakouts worsen
- Skin ages faster
The microbiome plays a central role in maintaining this barrier by:
- Producing moisturising factors (like hyaluronic acid)
- Regulating immune responses
- Preventing pathogen overgrowth
This is why I always say:
Barrier repair isn’t about adding more — it’s about restoring balance.
Read my article - "Why Your Skin Is Intelligent: A Facialist’s Guide to Skin Barrier Health and Long-Lasting Skin Repair"
Microbiome Skincare & Inflammatory Skin Conditions
Acne
- Driven by chronic inflammation + microbiome imbalance
- Disrupted follicle microbiome leads to breakouts
Microbiome approach:
- Rebalance bacteria
- Reduce inflammation
- Support oil (not strip it)
Rosacea
- Linked to immune overreaction + microbial imbalance
- Skin becomes reactive and inflamed
Microbiome approach:
- Calm immune signalling
- Increase microbial diversity
- Strengthen barrier function
Eczema
- Associated with low microbial diversity + barrier dysfunction
Certain bacterial strains can:
- Increase ceramide production
- Improve resistance to irritants
The Esse Skincare Philosophy (Why It Matters)
Esse Skincare is built around one core idea:
Recreate the environment your skin evolved in.
Trevor Steyn’s “Paleo Skincare” philosophy focuses on:
- Supporting natural microbial diversity
- Avoiding harsh preservatives & surfactants
- Using live probiotics + prebiotics + postbiotics together
- Strengthening the skin barrier instead of attacking symptoms
Their approach is not about quick fixes — it’s about long-term skin health and regeneration without damage
And this aligns completely with your ethos.
The Bigger Shift: From “Active Overload” → Skin Intelligence
We’ve come from an era of:
- Over-exfoliation
- Overuse of acids
- Barrier damage
- Inflammation
Into an era of:
✨ Microbiome respect
✨ Barrier repair
✨ Intelligent skincare
✨ Less is more
Even industry experts now emphasise that over-cleansing and harsh products disrupt the microbiome and barrier function
This is where skincare is going.
Not more actives.
Not more stripping.
Not more damage.
More intelligence. More balance. More respect for the skin.
Because when you support the microbiome,
you don’t just improve your skin…
✨ You future-proof it.













