Palm oil makes a hard, long-lasting bar with stable lather — which is exactly why it's everywhere. But its links to deforestation push many makers to leave it out. The catch: drop palm carelessly and your bar goes soft, or your lather goes flat. Here's how to make a palm-free bar that still lathers like you mean it.
What palm was doing for your recipe
Palm pulls double duty: hardness (from palmitic acid) and a stable, creamy lather. Remove it and you have to replace both jobs deliberately — not just swap in "some other oil".
Replace the hardness
- Tallow or lard — the traditional hard fats; nearly a one-for-one stand-in for palm's body.
- Cocoa or shea butter — plant-based hardness at 5–15%; cocoa is firmer, shea more conditioning.
- A modest bump in coconut adds hardness too — but it also raises cleansing, so don't lean on it alone.
Now rescue the lather
Lather has two parts, and the calculator's quality bars name them directly:
- Bubbly lather comes from lauric and myristic acids — that's coconut (and babassu). Around 15–25% gives big, fluffy bubbles.
- Creamy, stable lather comes from palmitic, stearic, and ricinoleic acids. The star is castor oil at 5–8%: a little goes a long way and it keeps the bubbles from collapsing.
Coconut for the bubbles, castor for the staying power, a butter or tallow for the body — that's the palm-free lather trinity.
A starting recipe (palm-free)
- Olive oil — 40%
- Coconut oil — 25%
- Cocoa butter (or tallow) — 25%
- Castor oil — 7%
- Sweet almond oil — 3%
Run that through the calculator and watch the bars: you want Hardness and Conditioning both comfortably in range, Bubbly and Creamy up off the floor, and Cleansing not so high it dries the skin. Adjust 5% at a time until the bars sit where you like.
One more thing: sustainability isn't only about palm
If you do use palm, RSPO-certified sustainable palm exists. And every oil has a footprint — local, seasonal, minimally-processed fats are often the kinder choice regardless of the label. The most sustainable bar is the one you actually use up.
New to the lye side of things? Read the honest lye-safety guide first.