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Pure castor oil — the whole label, up front
90%
Ricinoleic acid
The number that decides whether castor oil works — printed on every bottle.
0
Hexane
Extracted without the solvent most producers use and never mention.
1
Ingredient
Pure castor oil. Nothing else in the bottle, nothing to hide.
Why BioCentic
The number, printed
90% ricinoleic acid, stated on every bottle. If a brand won't print its concentration, ask why.
Hexane-free extraction
Extracted without the solvent most producers use and never mention. Nothing in the process you'd want to avoid.
One ingredient only
No fillers, no fragrance, no blend. Castor oil is the formula — fresh from small batches.
Why the number matters
Castor oil is only as good as its ricinoleic acid.
Ricinoleic acid is what people buy castor oil for — and most bottles won't tell you how much is inside. Ours is 90%, extracted without hexane, and we print it because you shouldn't have to take an oil on faith. One ingredient. One number. Nothing else in the bottle.
The whole story
Most castor oil is a mystery in a dark bottle. No concentration listed, no mention of the hexane used to extract it, no reason to believe one brand over another.
This is the opposite. BioCentic is one ingredient: pure castor oil, hexane-free, with 90% ricinoleic acid — the fatty acid that makes castor oil worth using in the first place. We print the number because it's the only one that matters, and because almost nobody else will.
The ritual is simple. Warm a few drops between your fingers and press into skin, massage into scalp, or smooth through brows and lashes at night. It's dense, golden, and slow — an oil you apply deliberately, not one that disappears in a rush. Thirty seconds, and done.
Bottled in small batches, so what reaches you is fresh — not something that sat on a shelf losing its reason to exist.
One ingredient. One number. Yours to verify.