Certificate of analysis
Batch B1001 · Brilho Brasileiro
Pure, proven, and nothing to hide.
We send every batch of our cold-pressed castor oil to an independent lab. You can view our latest batch results below.
Single-origin · Northeastern Brazil
01
Composition
Measures what the oil is actually made of. Castor oil is defined by one rare fatty acid, anything else isn't castor oil.
Refractive index
1.4792at 20 °C
Right where pure castor oil should sit. A simple fingerprint of authenticity.
How light bends passing through the oil. Pure castor oil has a known value, so this is a quick check against dilution.Ideal range 1.477–1.481 at 20 °C
02
Quality & freshness
How clean and fresh the oil is the day it is bottled. Lower is calmer here.
Moisture
0.09%
USP <731>
Dry and shelf-stable. Water stays out.
Exactly how much water is in the oil, measured by USP <731>. Less moisture means better stability and shelf life.Ideal range ≤ 0.2%
03
Purity & safety
The part that matters most for what touches your skin.
Pesticide residue panel
LC/MS/MS · 189 compounds
None detected
A screen for 189 agricultural chemicals. Every one came back not detected.
Microbial enumeration
USP <2021> · total aerobic count plus yeast and mould
<100 cfu/g
Counts the bacteria, yeast and mould present. Aerobic count under 100 cfu/g and yeast and mould under 10 cfu/g, both at the reporting floor.
Specified pathogens
USP <2022> · E. coli, Salmonella, S. aureus, P. aeruginosa
Absent
The organisms cosmetics must exclude. All four confirmed absent in this lot.
Want the original paperwork?
Every number on this page comes straight from the lab. Read the full signed report for batch B1001.
No additives, ever.
