Ingredient Deep Dive, Part 4: Why We Use Castor Oil

TL;DR: Castor oil is the lather whisperer. A small but mighty seven percent helps bubbles last longer and gives the lather a silky, stable body.

What castor oil brings to your skin

• Silky slip: The unique ricinoleic-rich profile adds glide to the lather.

• Lather stability: Bubbles hang around instead of vanishing mid-wash.

• Balanced feel: Helps the bar feel gentle even with solid cleansing power.

What castor oil does inside the recipe

• Foam support: It teams up with coconut oil to create and stabilize bubbles.

• Bar texture and feel: Adds that “creamy cushion” many people love.

• Label-speak: Ricinus Communis (Castor) Seed Oil. After saponification it appears as Sodium Castorate.

  
  

Why not 100% castor oil

Too much castor can make a bar sticky and soft with odd lather. We keep it in the 5 to 7 percent pocket where it shines.

Where castor oil fits in a daily routine

• Anytime boost: Good for anyone who wants a richer lather feel.

• Hands and body: Especially nice in cooler months when skin likes extra slip.

Quick facts

• Skin feel: silky and cushioned

• Lather style: stable, creamy bubbles

• Best for: all skin types that want a richer lather

• Plays well with: coconut oil for bubbles, shea for plushness
  

Honest sourcing note

We buy cosmetic-grade castor oil from consistent suppliers. Clear, fresh stock keeps performance on point.

FAQs

Will castor oil make the bar sticky?

Not at our level. We use just enough for performance without tack.

Is castor oil safe for sensitive skin?

Most people do well with it in rinse-off soap. As always, patch test if you are reactive.