Why we put castor oil in every bar

If you've ever wondered why some handmade soaps produce a stable, creamy lather while others fizzle out in seconds, the answer is almost always castor oil.

What castor oil does in soap

Castor oil is a humectant — it pulls moisture from the air into your skin. In cold-process soap, it does two other things almost no other oil can: it stabilizes lather, and it boosts bubble density. Without castor oil, most natural soap recipes lather thinly and briefly. Add just 5–8% and the whole bar transforms.

Why it matters for your skin

• Ricinoleic acid — the fatty acid unique to castor oil, prized for its softening properties
• Humectant behavior — draws moisture into the skin during the wash instead of stripping it
• Anti-inflammatory profile — traditionally used in balms for irritated skin

Why we use it (and why factories don't)

Castor oil is meaningfully more expensive than palm oil, which is why mass producers avoid it. Every GHAM Naturals bar includes cold-pressed castor oil at a ratio dialed in for a rich, dense, long-lasting foam — the kind that clings to your skin instead of running down the drain.

How to spot a bar with castor oil

The lather test is honest. Wet your hands, rub the bar three times, and lather up. If the foam is dense, creamy, and lingers — castor oil is in there. If it's airy and disappears — it isn't.