Castor Oil
Castor oil is unique among soapmaking oils because of its unusually high ricinoleic acid content — a thick, humectant-like fatty acid that enhances lather, draws moisture to the skin, and adds silky texture.
What it does for skin:
- Boosts lather creaminess
- Helps retain skin moisture
- Contributes a smooth, silky glide
- Naturally conditioning
Scientific reference:
Bioactive-Based Cosmeceuticals (includes Castor Oil) – NIH/PMC
https://pmc.ncbi.nlm.nih.gov/articles/PMC8837976/
