EXPAND
A fine fragrance — bright, sun-drenched citrus with fresh aromatic spice, grounded by a subtle woody dry-down and soft honeyed finish — infused with neuro-active Circalys™, designed to uplift mood, energize and leave you fully switched on.



Expand
A functional fragrance built to bring you back to the present. Use ahead of moments that require you to be awake. Before movement, breathwork, pilates, or creative work. When you want to awaken the senses, activate the body, and step in feeling clear, focused and fully switched on.
TOP Grapefruit, Melon, Petitgrain
HEART Bergamot, Ginger, Pink Peppercorn, Juniper Berry
BASE Himalayan Cedarwood, Neroli, Cardamom
STATE Energized Focus
NEUROACTIVE Circalys™, Derived from Green Chiretta
FIRST RELEASE SHIPS LATE SUMMER
Awake Energy • Mental Clarity • Forward Motion
Radiant, citrus-forward, sunlit functional fragrance designed to awaken the senses and bring the body into motion.
Imagine stepping into early morning light. Cool air on your skin. Citrus carried on the breeze. The quiet electricity of a day not yet defined. Your lungs fill deeper. Your stride lengthens. Brain awake. The world feels wider, brighter, possible. Nothing is rushing you. Everything invites you forward.
Expand meets you at the threshold of the day and allows you to push beyond what you think is possible.
Every ingredient was selected for its functional role.
Radiant citrus oils are associated with increased alertness and reduced fatigue perception.
Green aromatics help sharpen clarity, while grounding woods support a balanced stress response, enabling sustained focus rather than short bursts of stimulation.
Scent communicates directly with the limbic system, the brain's center for emotion, memory, and behaviour. To reinforce these effects, we include Circalys, a neuroscience-backed active ingredient that supports mood regulation. With continued use, this helps strengthen the association between aroma and state, supporting more consistent clarity, energy, and mental momentum over time.
Alcohol Denat., Parfum, Aqua (Water), Citrus Aurantium Bergamia Peel Oil, Citral, Menthol, Propanediol, Andrographis
Paniculata Leaf Extract
- Non-toxic
- Endocrine-conscious
- Free from Phthalates, nitromusks, polycyclic musks and synthetic fixatives.




Nature-Led. Science-Backed.
Every ingredient has a reason to be there. Osero is built on neuro-active formulations — no toxins, no filler, nothing that doesn't earn its place. What you put on your body matters. So does what it does to your mind.
Inspired by a need
Expand is designed as a daily sensorial habit. With repeated use, the nervous system begins to associate this accord with focused energy, so every application becomes a practiced return to being fully switched on. An instant layered aroma paired with a slow-release neuroactive that builds over time.
Scent as an activator
Scent reaches your nervous system faster than you negotiating with yourself. Wear the same scent before you train, before you focus, before the hard thing. Over time, your brain learns the signal so that the shift can start before you wander.
"You are the sky, everything else is just the weather."
-PEMA CHÖDRÖN




