Epicutis Hydrobiome Serum

Epicutis Hydrobiome Serum is for skin that never quite feels settled. If your skin is prone to congestion, persistent redness, or that frustrating cycle of breakouts and irritation that nothing seems to fully resolve, this serum gets to the root of what is actually causing it. Rather than drying out the skin or aggressively targeting symptoms, it works with your skin's natural ecosystem to restore balance, calm visible inflammation, and create the kind of stable, clear foundation that lets everything else in your routine actually work. Lightweight and completely absorbing, it is the first step that changes how your skin behaves.

Key Benefits

Rebalances the Skin Microbiome at the Source
TCP, a patented TLR2 modulator, selectively targets the pathogenic bacteria that trigger congestion and breakouts while leaving beneficial flora untouched, restoring microbial equilibrium rather than just suppressing what you can see on the surface.

Calms Redness and Chronic Irritation
By regulating inflammatory signaling through the TLR2 pathway, TCP reduces the underlying reactivity that keeps skin in a constant state of redness and sensitivity, visibly calming the complexion over time.

Supports Clearer Skin Without Harsh Actives
Rather than relying on aggressive drying ingredients, the formula clears and maintains clarity through microbiome regulation, making it sustainable for long-term daily use even after corrective treatments are no longer needed.

Antioxidant Barrier Reinforcement with TPNa
Sodium Tocopheryl Phosphate (TPNa) is a stabilized, water-soluble form of Vitamin E that penetrates the epidermis to neutralize oxidative stress, strengthen the skin barrier, and reduce visible redness from the outside in.

A Maintenance Serum That Keeps You Clear
Once skin has responded to a corrective protocol, Hydrobiome Serum provides the ongoing microbiome support needed to stay clear without cycling back to strong actives. It keeps the conditions that caused congestion from returning in the first place.

Layers Under Anything
The completely absorbing, residue-free texture works seamlessly under retinoids, acids, peptides, and SPF, fitting into any routine without disruption.

Epicutis Hydrobiome Serum is for skin that feels perpetually out of balance — prone to congestion, redness, or irritation that doesn't fully resolve with conventional skincare. If breakouts and sensitivity seem to go hand in hand, or if your skin tends to flare up in response to products that work well for others, this serum is designed to address what is actually driving that imbalance rather than simply managing its symptoms.

It is an excellent fit for sensitive and reactive skin types that need a calming, microbiome-supportive foundation before layering corrective actives. It is also well suited for post-procedure care following laser, peel, or microneedling treatments when the barrier needs reinforcement and inflammatory activity needs to be kept in check.

Those who prefer lightweight serums that absorb completely and leave no residue will find this fits seamlessly into any routine, morning or evening, without interfering with anything layered on top.

If your skin is congested and reactive at the same time, this is where we start. Getting the microbiome back in balance tends to make every other product in your routine perform better.

Prepare: Cleanse with a gentle, non-stripping cleanser and pat skin dry.

Apply: Dispense 1 to 2 pumps into fingertips.

Technique: Press evenly into face and neck and allow to absorb fully before applying additional serums, moisturizer, or SPF.

Frequency: Use morning and evening as the first serum step in your routine, before heavier serums and creams.

We offer free shipping on every order $50+ (just $7 flat-rate below that). Orders placed before 1pm PST Monday through Friday ship out the same day. Orders placed outside of that window are shipped the very next day!

Changed your mind? We get it. That's why our return window is generous: 30 days even if you've opened and tried it, or a full 60 days if it's still sealed. Some exclusions apply. See our full return policy for details.