Ingredients

What it is Dissolved oxygen sourced from desalinated deep sea water. Deep sea water is richer in dissolved oxygen and trace minerals than surface water. The brand sources this as the base for the Cryogenic Activator.

Why it matters Skin that is well-oxygenated at the surface level is more receptive to active ingredients applied immediately after. The Cryogenic Activator is used as a first step precisely because it prepares skin to absorb everything that follows. Aesthetic clinics have used oxygen mist therapy in pre- and post-procedure protocols for years — the Cryogenic Activator applies the same logic to daily home use.

Where it appears Cryogenic Activator 100ml

What it is ACELL-300 is OxygenCeuticals' proprietary botanical complex. Key actives include:

• Polygonum Cuspidatum Root Extract (Japanese knotweed) — antioxidant and skin-conditioning properties
• Althaea Rosea Flower Extract — soothing and moisture-supporting
• Additional botanical actives including Prunella Vulgaris Leaf Extract, Cnidium Monnieri Fruit Extract, and plant-derived compounds

Why it matters Most hydration actives work at the surface — they plump up the outer layers and the effect fades within hours. ACELL-300 is designed to increase the skin's own capacity to absorb and retain moisture, so hydration persists. The texture is fluid-weight (lighter than most serums, more concentrated than a toner) which makes it usable as a layering step without adding heaviness.

Where it appears Acell-300 Fluid 50ml

What it is Ceutisome is the brand's most advanced proprietary technology platform. It uses an oxygen encapsulation delivery mechanism to carry active ingredients deeper into the skin's surface layers, improving the rate and depth of absorption compared to standard topical application.

The platform was developed from clinic-use protocols — the same delivery logic applied in professional aesthetic settings, adapted for home use.

Why it matters Most home-use skincare sits on the skin's surface. Ceutisome-based products are designed so actives reach the layers where they can work — not just coat the surface. The Hydrating Fusion Shot pairs a high-concentration Hyaluronic Acid ampoule with a booster designed to amplify this penetration.

Where it appears Ceutisome Hydrating Fusion Shot (Moist 7 Complex + booster) i Fill Ceuti-Shot (4-week programme)

What it is NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme present in every living cell, central to cellular energy metabolism and repair processes. In skincare application, NAD+ is used for its involvement in supporting cellular function and renewal.

Why it matters Skin renewal slows with age — the rate of cell turnover and the skin's ability to repair itself decreases over time. NAD+ in topical application is intended to support this process at the cellular level. It is a more recent addition to clinical-grade skincare formulations and represents one of the more sophisticated actives in the OxygenCeuticals range.

Where it appears i Fill Ceuti-Shot (4-week programme)

What it is PDRN (Polydeoxyribonucleotide) is a polynucleotide compound derived from salmon DNA (see note below). It is used in injectable aesthetic medicine for its regenerative properties, and has been adapted for topical application in advanced skincare formulations.

A note on "salmon DNA" PDRN being derived from salmon DNA sounds more alarming than it is. The compound is a purified polynucleotide fraction — not whole genetic material. It has a well-documented safety profile in aesthetic medicine. In HK, you may have encountered PDRN in the context of "salmon injection" treatments at aesthetic clinics. The topical form in i Fill Ceuti-Shot applies the same active via skin-contact delivery.

Why it matters PDRN in clinical injectable use is associated with supporting the skin's recovery and regeneration processes. The topical application in i Fill Ceuti-Shot brings this active into a home-use format within a structured 4-week programme designed to deliver visible results with consistency.

Where it appears i Fill Ceuti-Shot (4-week programme)

What it is Exosomes are nano-scale vesicles involved in cell-to-cell communication. The plant-derived exosomes in the i Fill Ceuti-Shot are extracted from botanical sources and are distinct from the animal-derived exosomes used in some injectable aesthetic treatments. Plant-derived exosomes carry bioactive compounds from their source plant material and are an emerging active in advanced skincare formulations.

Why it matters Exosomes as a skincare active represent one of the more forward-looking areas of cosmeceutical formulation. Their small particle size allows for better interaction with skin cells compared to conventional delivery mechanisms. The plant-derived form has a cleaner regulatory profile than animal-derived variants for topical cosmetic use.

Where it appears i Fill Ceuti-Shot (4-week programme)

What it is Hyaluronic Acid (玻尿酸) is a naturally occurring polysaccharide with exceptional water-binding capacity. The molecular weight determines how deep it penetrates — high molecular weight HA works at the surface, low molecular weight HA reaches deeper layers. Multi-weight HA complexes use more than one form to hydrate across the full depth of the skin's surface structure.

Where it appears Moisture Aqua Serum (multi-weight HA complex) Ceutisome Hydrating Fusion Shot (HA ampoule component) Couperose Fluid

What it is Niacinamide (Vitamin B3) is one of the most studied topical actives. It supports the skin barrier function, improves the appearance of uneven tone, and is generally well-tolerated across skin types including sensitive skin.

Where it appears TP Sun Guard SPF50

What it is Panthenol is the provitamin form of Vitamin B5. It is a humectant and emollient that draws water into the skin and supports barrier repair. It is well-documented for use in sensitive and post-procedure skin.

Where it appears TP Sun Guard SPF50 Skin Barrier Ato Cream

What it is Fucoidan is a sulphated polysaccharide derived from brown seaweed. In skincare, it is used for its skin-calming and barrier-supporting properties. The Skin Barrier Ato Cream uses Fucoidan V, the specific form selected for the formula.

Why it matters Fucoidan's marine origin gives it a different activity profile from the land-plant botanicals common in most sensitive-skin formulas. It has good compatibility with compromised skin and is used in post-procedure formulations for this reason.

Where it appears Skin Barrier Ato Cream

What it is Kaolin is a naturally occurring white clay mineral, one of the gentlest clays used in skincare. It absorbs excess oil and surface impurities without the aggressive stripping of more active clays like bentonite.

Where it appears Clarifying Mask