Batch BB-2026-0142 · Brilho Brasileiro
Pure, proven, and nothing to hide.
We send every batch of our cold-pressed castor oil to an independent lab. Here is exactly what they found, test by test.
Single-origin · Bahia, Brazil
01
Composition
What the oil is actually made of. Castor oil is defined by one rare fatty acid, and ours leads with it.
Ricinoleic acid
The rare fatty acid that makes castor oil what it is. The richer the share, the truer the oil.
87.7%
The rare fatty acid that defines castor oil. The higher its share, the purer and more authentic the oil.
Fatty acid profile
GC-FAME · AOCS Ce 1-62
Ricinoleic
87.7%
Linoleic
4.4%
Oleic
3.6%
Palmitic
1.1%
Stearic
1.0%
Others
2.2%
Hydroxyl value
162mg KOH/g
High and consistent. A measure of all those ricinoleic hydroxyl groups doing their work.
Measures the hydroxyl groups on the ricinoleic acid — the part behind castor oil's slip and conditioning. Higher is better.
Refractive index
1.4787at 25 °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.
02
Quality & freshness
How clean and fresh the oil is the day it is bottled. Lower is calmer here.
Peroxide value
1.4
meq O₂/kg
Low and fresh. Barely any oxidation.
Tracks early oxidation. The lower the number, the fresher the oil and the slower it ages in the bottle.
Acid value
0.7
mg KOH/g
Gentle and stable, just as cold-pressed should be.
Measures free fatty acids from any breakdown of the oil. Low and stable is the mark of careful cold-pressing.
Moisture
0.16%
Karl Fischer
Dry and shelf-stable. Water stays out.
Exactly how much water is in the oil, by Karl Fischer titration. Less moisture means better stability and shelf life.
03
Purity & safety
The part that matters most for what touches your skin. Nothing added, nothing hiding.
Pesticide residue panel
Multi-residue screen, 500+ analytes
None detected
A broad screen for 500+ agricultural chemicals. None were found in this batch.
Residual solvents
USP <467> · cold-pressed, never solvent-extracted
None detected
Confirms no extraction solvents remain. Ours cannot have any: it is cold-pressed, never solvent-extracted.
Microbial enumeration
USP <61> · total aerobic & yeast/mould count
<10 CFU/g
Counts any bacteria, yeast, and mould present. Ours comes back essentially sterile.
Specified pathogens
USP <62> · E. coli, Salmonella, S. aureus, P. aeruginosa
Absent
Screens for the specific harmful organisms cosmetics must exclude. All confirmed absent.
Want the original paperwork?
Every number on this page comes straight from the lab. Read the full signed report for batch BB-2026-0142.
No additives, ever.
