First Light vs Green Goo: two natural mould sprays, compared
Both are plant-oil approaches. Green Goo is a tea-tree and clove spray with a 20-minute wait. First Light is a six-oil blend you use on the stain and in a diffuser. Our pick is First Light, with the Protection Kit if the room stays damp.
On 12 November 2026, Green Goo Anti Mould Spray 500ml was $29.99 (was $35), with their claim "kills 99.9% of mould and bacteria" and a 20-minute wait, up to 2 hours. That is their claim. We do not borrow another brand's percentage.
Side-by-side, 12 November 2026
| First Light | Green Goo Anti Mould Spray 500ml | |
|---|---|---|
| Oils | Clove, Litsea cubeba, tea tree, eucalyptus, peppermint, cedarwood | Tea tree and clove, as on their page |
| Price on 12 Nov 2026 | From A$39.99 | $29.99 (was $35) |
| How you use it | On the stain, and in a waterless diffuser for the room | Leave 20 minutes, up to 2 hours |
| The claim on the product | Lab tested: 99.2% on direct contact. | Their claim: kills 99.9% of mould and bacteria |
Our pick
First Light for the stain. Lab tested: 99.2% on direct contact. The Protection Kit for a still, damp room. Free standard shipping. 60-day money-back.
Shop First Light, from A$39.99 Shop the Protection Kit, from A$79.98
How the wait time changes a bathroom clean
Green Goo asks for 20 minutes, and up to 2 hours. First Light treats the stain, then you can run the Protection Kit in the same room. Bathroom method lives on how to stop mould in a bathroom with no window.
The tea-tree and clove method posts already exist: does tea tree oil kill mould and clove oil for mould. This page does not retell them. Euclove is the other clove-led brand comparison.
Questions people ask
Is Green Goo a natural mould spray?
Yes, on its own page it is a tea-tree and clove spray. That is their formula, not ours.
Why is First Light's test figure written differently?
We only use our own lab line: Lab tested: 99.2% on direct contact. We do not borrow another brand's percentage.
Which one can I run in a diffuser?
First Light is the oil blend we run in the Waterless Diffuser, and in the Protection Kit. Green Goo is sold as a spray you leave on a surface.
Aurala is a Gold Coast business. Shop First Light or shop the Protection Kit.
