What is Postbiotic Skincare?
Benefits for Your Skin Explained
What is Postbiotic Skincare? Benefits for Your Skin Explained
If you have been seeing the word postbiotic popping up in your skincare research lately, you are not alone. Postbiotic skincare is one of the fastest growing trends in natural beauty right now — and for very good reason. But what exactly is a postbiotic, what does it do for your skin, and why should you care?
In this guide, we break down everything you need to know about postbiotic skincare in plain English, and explain why we made it the hero ingredient in our award-winning Lacus Temporis Pro Collagen Serum.
What is a Postbiotic?
You have probably heard of probiotics — the live bacteria found in yoghurt and supplements that support your gut health. And you may have heard of prebiotics — the food that feeds those bacteria.
Postbiotics are what comes after that process.
When bacteria ferment and break down, they leave behind incredibly beneficial byproducts — metabolites, enzymes, peptides and other compounds that have powerful effects on living cells. These byproducts are called postbiotics.
In skincare, postbiotics are derived from fermentation processes and applied directly to the skin, where they work to strengthen, protect and revitalise at a cellular level.
What Does Postbiotic Skincare Do For Your Skin?
Postbiotics work in several powerful ways when applied topically:
Strengthens the skin barrier
Your skin barrier is your first line of defence against pollution, bacteria and moisture loss. Postbiotics help reinforce this barrier, keeping skin resilient and healthy.
Supports the skin microbiome
Your skin has its own ecosystem of bacteria that keeps it balanced and protected. Postbiotics nourish this microbiome rather than disrupting it the way harsh chemicals can.
Reduces inflammation
Postbiotics have natural anti-inflammatory properties, making them ideal for sensitive, reactive or redness-prone skin.
Boosts radiance
By supporting healthy cell turnover and barrier function, postbiotics leave skin looking visibly brighter and more even.
Anti-ageing benefits
Stronger barrier function means better moisture retention, which directly reduces the appearance of fine lines and wrinkles over time.
Who is Postbiotic Skincare Suitable For?
The brilliant thing about postbiotics is that they are gentle enough for virtually every skin type including:
- Sensitive skin
- Dry and dehydrated skin
- Combination skin
- Mature skin
- Acne-prone skin
Because postbiotics work with your skin’s natural biology rather than against it, they rarely cause irritation or reaction — making them ideal for anyone who has struggled with harsher active ingredients in the past.
What Makes Our Postbiotic Ingredient Special?
At Luna Selene we are passionate about sustainability as well as skincare results. That is why we chose a very special postbiotic ingredient for our Lacus Temporis Pro Collagen Serum — Saccharomyces Barley Seed Ferment Filtrate.
This remarkable ingredient is an upcycled postbiotic derived from the gin industry. During the gin production process, barley seeds are fermented using Saccharomyces yeast. The filtrate — the byproduct of that fermentation — is an extraordinarily rich source of skin-loving compounds.
Rather than letting this byproduct go to waste, we harness it for your skin.
The result is a postbiotic ingredient that:
- Supports a healthy skin microbiome
- Strengthens the skin barrier
- Delivers anti-ageing benefits
- Is completely sustainable and upcycled
- Aligns with our commitment to conscious, ethical beauty
It is innovation meeting sustainability — and your skin gets all the benefits.
Postbiotics vs Probiotics vs Prebiotics in Skincare
You may be wondering how these three terms differ when it comes to your skincare routine:
Probiotics in skincare
Postbiotics in skincare contain live bacteria cultures that aim to balance the skin microbiome directly. They can be unstable and difficult to formulate effectively.
Prebiotics in skincare
Prebiotics in skincare feed the good bacteria already living on your skin, helping them thrive and keep harmful bacteria in check.
Postbiotics in skincare
Postbiotics in skincare are the stable, potent byproducts of fermentation. Because they do not contain live cultures they are more stable in formulations, longer lasting and often more effective at delivering results.
For most people postbiotics offer the most reliable and effective route to a balanced, healthy skin microbiome.
How to Add Postbiotic Skincare to Your Routine
Adding postbiotic skincare to your routine is simple. Our Lacus Temporis Pro Collagen Serum is designed to be used as a serum step after cleansing and toning, before moisturiser.
Here is a simple routine to get the most from your postbiotic serum:
- Cleanse your skin thoroughly
- Apply your toner
- Apply 2-3 drops of Lacus Temporis Pro Collagen Serum to your face and neck
- Gently press into skin — do not rub
- Follow with your moisturiser
- Apply SPF in the morning
Use morning and evening for best results.
Why Choose Luna Selene for Postbiotic Skincare?
Lacus Temporis Pro Collagen Serum is our award-winning 30ml vegan face serum formulated with postbiotics alongside a powerful blend of active ingredients:
- 5% Niacinamide to strengthen the skin barrier and refine texture
- 3% Tranexamic Acid to brighten skin tone and reduce dark spots
- Hyaluronic Acid for intense hydration and plumping
- Toniq™ Saccharomyces Barley Seed Ferment Filtrate — our hero upcycled postbiotic
Free from parabens, synthetic fragrances, mineral oils and sulphates. 100% vegan and cruelty-free. Made in the UK by an independent women-founded brand.
Lacus Temporis is available for £68 for 30ml.
Shop Lacus Temporis Pro Collagen Serum here
The Bottom Line
Postbiotic skincare is not just a trend — it is a genuine evolution in how we understand and care for our skin. By working with your skin’s natural biology rather than against it, postbiotics offer a gentle yet powerful route to stronger, brighter and more resilient skin.
At Luna Selene, we have been harnessing the power of postbiotics since day one — because we believe the future of skincare is sustainable, ethical and genuinely effective.
Ready to try postbiotic skincare for yourself?
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