Proof, not promises.

A real-world mould test using white bread, a humid jar, and fourteen days.

The bread test is the simple observation. The laboratory test is the controlled measurement. Both shown here.

Bread, humid jar, fourteen days. One side used First Light every day. The other side did not. Same room. Same air. Different result.

Results will vary.

Why This Test

Mould is difficult to demonstrate honestly.

Laboratory tests are important, but they often feel abstract. Real environments are messy, uncontrolled, and imperfect. That is exactly where mould thrives.

So instead of starting with claims, we started with something familiar.

White bread rolls, left exposed to everyday indoor air. Observed over time.

One roll placed in an environment where First Light was present. One roll placed in an environment without First Light.

Nothing hidden. Nothing accelerated. Just comparison.

How this test was run

The test was conducted in a real indoor environment using materials mould commonly grows on. Conditions were intentionally simple so the outcome could be clearly observed.

What was controlled:

  • Same bread type
  • Same environment
  • Same exposure time
  • Same handling
  • Airflow variability
  • Ambient humidity fluctuations
  • Background microbial load

Those variables exist in real homes. We chose to keep them consistent.

What this shows

A visible difference in mould development under real-world conditions.

The oils spreading through the air over time.

A visible difference without laboratory framing.

Performance under conditions mould favours.

What this does not claim

Not a registered disinfectant. Not a remediation product.

This is not a medical claim.

This is not a regulatory pass or fail test.

Results will vary by environment.

How to read this result

This observation is not intended to stand alone.

It is one piece of evidence, alongside the laboratory test, formulation discipline, and real-world use over time.

We share it not to persuade, but to allow scrutiny.

the lab result

The lab test.

The bread jar is the home test. This is the lab test.


99.2% reduction in Aspergillus niger (black mould) on direct contact, under independent laboratory conditions.

How it works. Aspergillus niger builds its cell wall around a compound called ergosterol. Eugenol (clove) and citral (Litsea Cubeba) disrupt that wall. Without it the spore can't germinate.

Mechanism documented in Industrial Crops and Products, 2024.

Vapour-phase result confirmed in Antibiotics, 2022 (UNSW Sydney) — a lab aerosol chamber test that cut 72% of viable Aspergillus spores in 10 minutes using essential oil vapour.

For the full mechanism, the three-stage model, and why bleach makes mould worse, read how mould works.

the product

First Light Bottle

First Light. The product used in the bread test. A 100% natural mould defence blend. Use it however suits your home, a diffuser, a few drops in your cupboard, a spray bottle. Laboratory tested. 99.2% reduction in Aspergillus niger (black mould).

First Light Bottle
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First Light Bottle · one bottle
$34.99
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