Redox is short for reduction-oxidation, which is the chemical exchange of electrons between molecules. It is the same fundamental process behind a cut apple browning or metal rusting; at a cellular scale, it is also part of how skin generates energy, communicates, and responds to the world around it.

Antioxidants participate in that exchange. They can donate or accept electrons, helping prevent highly reactive molecules from pulling electrons from the lipids and proteins that give skin its smoothness, comfort, and visible integrity. Some antioxidant systems can also be regenerated, extending their role beyond a single encounter.

Noctis was built around a more specific question than whether an ingredient is “an antioxidant.” We looked at skin’s redox environment as a living system: where electron exchange occurs, what becomes vulnerable when that balance shifts, and which materials can work together with real biological logic.

The result is antioxidant care rethought as formulation architecture. With redox-active molecules composed alongside skin-mimetic lipids, water-binding amino acids, and targeted bioactives. Each is there not simply to perform alone, but to make the system around it more intelligent.

PHYREDOX™ is Arbor Skin’s proprietary electron-cycling antioxidant complex.

It gives NOCTIS a more continuous approach to antioxidant care, helping soften the visible effects of daily stress before they become more pronounced.

But it is not designed to work alone. PHYREDOX™ sits within a wider nightly system of skin-affine lipids, water-binding factors, amino acids, a targeted peptide, and botanical extracts; each selected to make the whole formula more intelligent than the sum of its parts.

The result is a smarter formula architecture, rather than ingredient accumulation with no internal logic.

The wider formula has been thoughtfully crafted to include elements that have a real, biological reason to coexist.

No. NOCTIS does not contain human exosomes. It contains plant-derived lipid vesicles inspired by the structure of naturally occurring vesicles.

These lipids are used as part of the formula’s delivery architecture, are skin-mimetic, and help to distribute components more evenly across the skin’s surface layers.

Use after cleansing and any water-light treatment steps, and before moisturizer or facial oil.

A simple evening routine might look like:

1. Cleanser
2. NOCTIS
3. Moisturizer

Skin can feel softer, more comfortable, and more hydrated quickly and upon use. Changes in the appearance of texture, fine lines, and overall resilience typically build with consistent use over several weeks.

The before-and-after imagery shown for NOCTIS reflects four weeks of use. And individual results will vary.