SEREN MAISON Bioactive Prebiotics Jelly Serum — 30 ml.
Serum · Microbiome

Bioactive Prebiotics Jelly Serum

A gel serum infused with prebiotic ingredients. Designed to support the skin's natural microbiome — the modern frontier in considered formulation.

COSMOS Natural Vegan
£29.99 · 30 ml
UK delivery from £5.99 · complimentary over £100
14-day returns on unopened items
Dispatched the same working day (before 2pm GMT)
About the product

A considered formulation

"The skin is an ecosystem. We have started to treat it like one."

For most of skincare history, the skin's surface was treated as a barrier to be defended. The last decade of research has gradually changed that picture. The skin is also an ecosystem — host to a community of microorganisms that contribute to its character. Prebiotic skincare reflects that shift in thinking.

This serum is a gel-based formula infused with prebiotic ingredients selected to support that ecosystem rather than disrupt it. The jelly texture sits between a serum and a light gel — light enough to layer, substantial enough to feel.

Microbiome-supporting formulations are still an emerging area in published cosmetic science. We have not made specific outcome claims because the science is moving fast and we prefer not to write copy that ages badly. What we can say is that the formula is gentle, considered, and well-tolerated.

How it’s formulated

Three things worth knowing

Prebiotic ingredients

Selected to support the skin's native microbial environment rather than disrupt it.

Jelly texture

A gel format that sits between a serum and a light cream. Layers cleanly under moisturiser.

For all skin types

Formulated to be broadly tolerated. A good entry into microbiome-aware skincare.

How to use

A simple ritual

After cleansing and toning

Apply to clean, slightly damp skin.

Pea-sized amount

A small pump is enough. Warm in palms.

Press in

Press gently into the face and neck.

Layer or alternate

Can be alternated with the Hydrating Serum (e.g. one in the morning, one at night) or layered on the same day.

Suitability

Who this is for

Considered for
  • Customers interested in microbiome-aware skincare
  • All skin types — formulated for broad tolerance
  • Routines that prefer gel textures
  • Daily use, morning or evening
Not the right pick if
  • Anyone with a known allergy to specific prebiotic ingredients listed on the packaging INCI
  • Use as a sole moisturiser — this is a serum step
Patch-test · Cosmetic product · Not a medicine This is a cosmetic skincare product. It is not intended to treat, prevent or diagnose any skin condition. Patch-test before use and discontinue if a reaction occurs. For ongoing skin concerns please consult a GP or registered dermatologist.
Inside

What it’s made of

Every product carries the full INCI list on its packaging in compliance with UK and EU Cosmetics Regulation. Where we know the full INCI, we publish it below. Where we are still confirming with our formulation partner, please refer to the carton.

Key actives

Prebiotic ingredients — selected to support the skin's microbial environment.

Full INCI list is printed on the carton and bottle. If you have a known allergy or wish to review the complete list before purchase, please email info@serenmaison.co.uk.

Frequently asked

A few questions

What is microbiome skincare?
A category of formulation that aims to support, rather than disrupt, the community of microorganisms that live on the skin's surface. It is an emerging area in cosmetic science with a growing body of supporting research.
Can I use it with actives?
It pairs well with most non-acid actives. Avoid layering directly with high-percentage AHA or BHA in the same routine step.
Is it probiotic or prebiotic?
Prebiotic. Prebiotics are the ingredients that feed beneficial microorganisms. Probiotics are the microorganisms themselves and are harder to keep stable in a topical formulation.
Will I see a difference?
Microbiome-supporting effects are subtle and slow. We do not promise visible change. We have written this honestly because the science is still developing.
Suitable for sensitive skin?
Yes — it is formulated for broad tolerance. Always patch-test if you have a history of reactivity.
Pairs well with

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