Lab Notes — changes, tests, batch logs
Lab Notes.
Everything we change, test or get wrong, written down. Reformulations come with the reason; batches come with their test results.
Reformulation
· 14 Oct 2026 · 6 min
212 of you said the serum felt tight by the afternoon. We ran three versions on a 40-person panel for four weeks. Here’s what changed, and what didn’t.
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Reformulations
Batch logs
Testing
Ingredients
02 Oct 2026
Batch log
OZ-03-2609: pH 5.58, micro clear, filled 4,180 bottles.
2 min
18 Sep 2026
Testing
Our SPF 50 got an independent in-vivo test. Result: SPF 53.
5 min
29 Aug 2026
Ingredients
New card in the index: bisabolol, the calm part of chamomile.
4 min
12 Aug 2026
Reformulation
We removed the citrus extract from Glycolic Night Fluid.
3 min
24 Jul 2026
Testing
Does 10% niacinamide sting? A 60-person patch test.
7 min
03 Jul 2026
Batch log
OZ-05-2606: retinal assay 0.051%, within ±5% of label.
2 min
Batch lookup
Type the number on your bottle.
You’ll see the fill date, pH, microbiology result and the assay of every active.
e.g. OZ-03-2609
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