Terra Noir: Inspired by Hermes Terre d'Hermes
Terra Noir makes a room feel grounded and settled. Citrus, cedarwood and vetiver, diffused cold so the scent stays true.
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Luxury Hotel Fragrances
Cold-Air Diffusion
Hand Poured in Australia
Safe Around Kids & Pets
IFRA Compliant Fragrance Oils
Why choose Ascent
Luxury Hotel Fragrance
Recreated from the scents of the world’s finest hotels.
Waterless Cold-Air Diffusion
No heat, no water, no dilution, just pure fragrance.
Hand-Poured in Australia
IFRA-compliant, vegan, and safe around kids and pets.
21-Day Money-Back Guarantee
On all diffusers, backed by a 1-year warranty.

Earthy citrus with peppery mineral depth
Terra Noir opens on bitter orange and grapefruit, then moves through black pepper, flint and geranium before grounding on vetiver, cedarwood and patchouli. Citrus with structure rather than sparkle.
For offices, entryways and boutiques
Use it in an office, entryway or boutique when you want a clean signature carrying more depth than plain citrus. The mineral note gives it an edge that suits a professional room.


Set a schedule and forget it
Terra Noir is a woody and clean blend. Best used on a timer rather than left running. Short bursts through the day keep the scent fresh and stop the room going nose-blind to it, which is the usual reason people think a fragrance has faded. Deeper blends like this one read stronger in a small room, so keep the intensity down until it settles.
Questions & Answers
Have more questions? Don't hesitate to email us:
How do I use this oil?
Pour it straight into any Ascent Collection diffuser — no water, no heat, no dilution. Cold-air diffusion disperses the oil as a fine, dry mist that fills the room the way a hotel lobby does: effortlessly, and always present.
Which diffusers is it compatible with?
Every Ascent Collection diffuser, from the portable Scent Aura and Scent Mini through to our large-format commercial units. Our oils are pre-formulated to the correct concentration and viscosity for the whole range.
How long will a bottle last?
That depends on your diffuser's intensity setting and how many hours a day it runs. As a guide, a 50ml bottle typically lasts around one month with daily use — larger bottles last proportionally longer.
Is it safe around kids and pets?
Safe for use around children and pets when used as directed. Our oils are IFRA-compliant and phthalate-free, and cold-air diffusion releases a fine dry mist that won’t leave residue on furniture or artwork. Use the diffuser in a ventilated room, keep an eye on your pets, and check with your vet if you’re unsure, especially with cats or birds.
What if I'm not sure the scent is right for me?
Try before you commit — our sample packs let you experience the collection at home before choosing a full-size bottle. Once you've found your favourite, it's ready to pour straight into your diffuser.
Complete the ritual
Pairs well with
50ml fragrance oils, sized to run in your diffuser for weeks. Add one to any diffuser order and save 25% on the oil — applied automatically at checkout.
More pairings coming soon.

