HAND POURED IN AUSTRALIA
Diffuser Oils
Fragrance is only as good as what's in the bottle
Our oils are IFRA-compliant, non-diluted, and formulated specifically for cold-air diffusion, which means they perform differently to mass-market alternatives. No water carrier. No filler. Just concentrated fragrance that delivers consistent scent from the first use to the last drop.
Diffuser oils Australia
Fragrance Oils Made for Waterless Diffusers
Ascent Collection diffuser oils are pure, undiluted fragrance oils blended for cold-air diffusion and hand poured on the Sunshine Coast. Choose from hotel-inspired, perfume-inspired, spa and natural scents, in bottles from 20 mL to 500 mL.
Undiluted
No water, carrier oils or alcohol
IFRA
Compliant fragrances
20–500 mL
Four bottle sizes
30+ days
Per 50 mL at 6–8 hours a day
Why it matters
Diffuser oil should be made for the diffuser.
Waterless diffusers atomise oil directly, so what’s in the bottle is what fills the room. Oils blended with water, alcohol or carrier liquids can clog an atomiser and give a thin, uneven scent. For the difference between fragrance and essential oils, read diffuser oils vs essential oils.
Every Ascent oil is viscosity-matched for cold-air diffusion, IFRA-compliant, phthalate-free and paraben-free. They’re also vegan and cruelty-free.
01
Pure and undiluted
No water, carrier oils, alcohol or fillers, so the fragrance comes through the way it was blended.
02
Made for the atomiser
Viscosity-matched so the diffuser runs cleanly and the scent stays even from the first hour to the last.
03
Hand poured in Australia
Blended and bottled on the Sunshine Coast in small batches.
Shop by collection
Four collections, six scent families.
Browse by collection, or use the filters above to shop by family: citrus, fresh, floral, woody, spicy and gourmand.
01
Hotel Inspired
Scents inspired by the lobbies of well-known five-star hotels.
02
Perfume Inspired
Room fragrances inspired by well-known designer perfumes.
03
Spa & Wellness
Calming and uplifting blends for winding down or resetting a room.
04
Natural
Clean, grounded scents that sit quietly in the background.
How to choose
Finding your scent, step by step.
You can’t smell a scent online, so start small and work up.
1
Start with a sample
Try up to 10 scents on test strips, or build a pack of 4, 6 or 8 × 20 mL oils.
2
Pick your size
20 mL to try a scent, 50 mL for everyday use, and 120 mL or 500 mL for bigger spaces and businesses.
3
Subscribe and save
Have your favourite delivered every 1, 2 or 3 months and save 20%.
Bottle sizes
The right amount for how you use it.
20 mL
The easy way to try a new scent, or mix four to eight in a pack.
Try
50 mL
Our core size. It typically lasts at least 30 days at 6–8 hours a day.
Everyday
120 mL and 500 mL
Larger bottles for heavy use, bigger spaces and businesses.
Stock up
Diffuser oil FAQs
What people ask before choosing an oil.
What is diffuser oil?
Diffuser oil is fragrance oil made to scent the air rather than to wear. Ascent Collection diffuser oils are pure and undiluted, blended for waterless cold-air diffusers.
What's the difference between diffuser oil and essential oil?
Essential oils are single plant extracts. Diffuser oils are fragrance blends, which allows more complex, longer-lasting scents than a single essential oil.
How long does a bottle of diffuser oil last?
A 50 mL bottle typically lasts at least 30 days at 6–8 hours a day, depending on your intensity and interval settings.
Can I use other oils in my Ascent diffuser?
We recommend Ascent Collection oils. They're viscosity-matched for cold-air diffusion, and other oils may affect performance and can void the diffuser warranty.
Should I dilute diffuser oil with water?
No. Waterless diffusers are designed for neat oil, and water damages the atomiser.
Can I try scents before buying a full bottle?
Yes. The fragrance test strip sample pack lets you try up to 10 scents, and scent packs let you choose 4, 6 or 8 × 20 mL oils.
Do you offer a diffuser oil subscription?
Yes. Subscribe and save 20%, with delivery every 1, 2 or 3 months.
Are the oils safe around children and pets?
They're IFRA-compliant, phthalate-free and paraben-free, and safe for homes with children and pets when used with normal household ventilation.
Not sure where to start?
Try before you commit.
Our fragrance test strip sample pack lets you smell up to 10 scents before you buy a full bottle.