In beauty, the conversation of trends has long revolved around ingredients: vitamin C in the morning, retinol at night, SPF always. But a new wave of research suggests something equally powerful has been hiding in plain sight: timing.
Enter RAESO, the New Zealand–founded skin care brand quietly building a reputation for something far more nuanced than the traditional morning-and-evening routine. Rooted in the science of chronobiology – the study of the body’s 24-hour biological rhythms – RAESO builds on a deceptively simple idea: the skin behaves differently at every hour of the day. When formulas match those rhythms, they can dramatically amplify performance..
It’s a concept that feels both futuristic and strangely intuitive. After all, our bodies already run on internal clocks that dictate everything from sleep cycles to hormone production. The skin, it turns out, is no different.
When Timing Becomes the Active Ingredient
More than 1,400 genes in the skin follow circadian patterns, controlling processes such as barrier strength, inflammation, antioxidant production and DNA repair. During daylight hours the skin is in defence mode, producing antioxidants and strengthening its barrier against UV radiation, pollution and oxidative stress. By night, its priorities shift: permeability increases, cell turnover accelerates, and repair pathways switch on.
“Timing is a powerful lever in skin care – sometimes as influential as the formula itself,” says Dr Daniel B. Yarosh, a molecular biologist internationally recognised for his work in skin DNA repair and advanced ingredient delivery systems.
Dr Yarosh – whose research has previously informed technologies used by brands such as Estee Lauder and La Mer – partnered with RAESO founder Katey Mandy to explore how circadian biology could shape a new generation of skin care. Together they co-authored peer-reviewed research in the Journal of Cosmetic Science, investigating consumer understanding of the skin’s internal clock and the potential of time-aligned routines.
The findings reinforced Mandy’s long-held belief: while awareness of circadian skin rhythms remains limited, consumers increasingly seek products that work with the body’s natural biology rather than against it.
A Skin Care Routine That Works Around the Clock
RAESO’s approach reimagines skin care as a 24-hour system rather than a pair of disconnected rituals. Each formula is designed to align with the skin’s shifting needs across the day, using advanced delivery technologies to release ingredients precisely when the skin is most receptive.
Encapsulated actives, slow-release retinal, pH-responsive carriers and biomimetic peptides allow formulas to continue working long after they’re applied. The aim is not simply immediate results, but sustained biological activity that mirrors the skin’s own rhythms.
The philosophy is elegantly distilled into two guiding principles: defence by day, repair by night.
During daylight hours, the skin’s barrier is at its strongest. Antioxidants and protective ingredients are therefore prioritised – formulas designed to neutralise free radicals and reinforce the lipid barrier before environmental stress can take its toll.
By evening, permeability increases dramatically. This “power hour” of heightened receptivity is when renewal ingredients such as retinal and peptides can penetrate more effectively, supporting cellular repair while the skin enters its overnight regeneration phase.
The result is skin care that behaves less like a static product and more like a dynamic system – one that adapts to the body’s biological timetable.
Born Under One of the Harshest Suns on Earth
The brand’s scientific ethos is deeply connected to its place of origin. Founded in New Zealand in 2022, RAESO developed under some of the most intense UV conditions on the planet — an environment that shaped both its philosophy and its ingredient selection.
Around 80 per cent of visible skin ageing is driven by ultraviolet exposure. In response, RAESO pairs clinically proven cosmeceutical actives with botanicals that have evolved under extreme sunlight.
Native ingredients such as mānuka honey, kānuka, mamaku black fern and marine algae are naturally rich in polyphenols, flavonoids and photoprotective metabolites. These compounds act as powerful antioxidants and barrier-supporting hydrators, reflecting the same defence-and-repair cycles found in human skin.
In many ways, the plants themselves embody circadian intelligence: protecting against environmental stress during the day and repairing damage overnight.
Six Formulas, One Biological Framework
The brand’s current collection comprises six core products designed to function as a simplified but biologically intelligent routine.
At the cleansing stage, Golden Nectar Manuka Honey Enzyme Cleanser merges nourishment with gentle enzymatic exfoliation. Rich in mānuka honey and fruit enzymes, the gel transforms into a silky milk as it rinses away impurities while maintaining the skin’s protective barrier.
Barrier repair continues with Cocoon Ceramide Cream, a moisturiser built around a seven-ceramide complex that mimics the skin’s natural lipid structure. Cholesterol, fatty acids and plant-derived growth factors work together to strengthen the barrier and support cellular renewal.
Morning defence comes in the form of Morning Dew Vitamin C Serum, which combines two stabilised forms of vitamin C with botanical antioxidants to brighten, protect and reinforce the skin against environmental stress.
Evening renewal is led by Yellow Moonbeam Retinal Elixir, a slow-release encapsulated retinal formula designed to deliver retinoid benefits with minimal irritation. Working during the skin’s nocturnal repair window, it encourages smoother texture, improved tone and accelerated cellular turnover.
Protection remains essential during daylight hours, which is where Sun Milk Drops Tinted SPF50 enters the routine. The mineral sunscreen uses non-nano zinc oxide to shield against UVA and UVB rays while also protecting against pollution, blue light and infrared radiation.
Completing the system is Tranquillity Water Activating Mist, a hydrating essence powered by New Zealand volcanic thermal water and Aqua-Dermal Encapsulation technology – a delivery system designed to optimise hydration and enhance the absorption of active ingredients layered on top.
The Future of Time-Aligned Skin Care
RAESO’s evolution marks more than a simple brand refresh. Originally launched as RAAIE, the transition signals a deeper commitment to chronobiology-led innovation.
The name itself reflects this philosophy: “RA” references the Te Reo Maori word ra – meaning sun or ray of light – while “ESO” stems from the Greek eso, meaning within. Together they symbolise the relationship between external light cycles and the body’s internal biological clock.
For Mandy, the concept is less about marketing language and more about biological logic.
“The data is clear: the skin does not function the same way at every hour,” she explains. “Barrier strength, permeability, DNA repair, inflammation control and cellular turnover all follow predictable circadian patterns. If we ignore those rhythms, we lose efficiency. If we work with them, we gain it.”
In a beauty landscape often driven by the newest ingredient or the fastest result, RAESO offers something quieter but arguably more radical: skin care that listens to the body’s own schedule.
Because sometimes, the most powerful innovation isn’t a new molecule – it’s simply learning when to use
