Car Diffuser Refill


Bringing the full range of Treebrush Alchemy candle and wax melt fragrances to your car: a car diffuser refill is an excellent way of infinitely reusing your existing diffuser.

These 20mL refills are intended for our car diffuser range including the Pendant, Square and Bauble designs, but you can use them for any refillable diffuser you have. They come with a handy dropper for mess-free refilling, and each bottle will refill up to four 5mL diffusers.

Can’t get enough of our absolutely divine fragrance range? Run your diffuser dry and want to give it a new lease of life? Our NEW range of car diffuser refills is a brilliant way to top up your favourite car diffuser fragrance, or to try something new.

These will work with any diffuser that can hold liquid, not just ours!

And if you don’t see your favourite fragrance here, but know we’ve stocked it in the past, purchasing the custom fragrance option will get you your fave (or a completely custom blend) made fresh for you. Pop us an email to check it’s in stock!


  • Avoid spilling the fragrance oil on surfaces or on yourself; this is a strong diffuser blend intended to be effective even in a tiny car diffuser
  • You can use this refill to top up a reed diffuser, but you cannot use this in steam diffusers, tea light diffusers, or as an essential oil substitute on diffuser bracelets
  • Do not use as a perfume substitute
Weight 0.1 kg

Apricot, Bergamot, Black Raspberry & Vanilla, Cherry Blossom, Citron & Mandarin, Driftwood, Egyptian Amber, Frangipani, Frankincense & Myrrh, French Pear, Guava & Lychee, Honeysuckle & Jasmine, Lavender, Lemon Verbena, Lime in the Sand, Mango & Tangerine, Peachy Keen, Pear & Rose, Pomegranate & Sage, Red Roses, Rustic Lodge, Sandalwood, Sea Salt, Strawberry & Rhubarb, Tonka & Oud, Touch Grass, Vanilla, Wakey Juice, Watermelon, Wild Honeysuckle, Custom Fragrance – Contact Us

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