Coconut Oil: Primarily acts as a deep cleanser that produces a high, fluffy lather. Effective at removing oils
Palm Fruit Shortening: Adds hardness and longevity to the bar, ensuring it doesn't dissolve quickly in water. On the skin, it provides a stable, creamy lather and contains antioxidants like Vitamin E that help condition and protect the skin barrier.
Shea Butter: A luxury additive that provides exceptional moisturizing and conditioning properties. It is rich in vitamins A and E, making it ideal for soothing dry or sensitive skin without stripping natural oils. 
Olive Oil: A soap-making staple valued for its gentleness. It creates a low, lotion-like lather and is highly moisturizing due to its oleic acid content, which helps lock in hydration and soothe irritated conditions like eczema or psoriasis.
Canola Oil: Functions similarly to olive oil as a moisturizer. It contributes to a creamy lather and leaves the skin feeling soft.
Sunflower Oil: Provides a lightweight, conditioning feel. It is rich in Vitamin E and essential fatty acids, making it very gentle for sensitive skin.
Rice Bran Oil: Provides moisturizing, conditioning and nourishing qualities, creating a creamy lather and leaving skin silky smooth, while also adding mild hardness to the bar, making it great for sensitive or mature skin due to its antioxidants (like Vitamin E), fatty acids, squalene and other antioxidants, it protects skin from damage and promotes a healthy glow. It acts similarly to olive oil but offers a richer feel.
Sweet Almond Oil: Known for its emollient properties, it helps soften and recondition the skin. It is a favorite for specialized bars because it is lightweight yet deeply nourishing.
Castor Oil: Unique among soaping oils because it acts as a humectant, drawing moisture to the skin. Its primary role, however, is as a lather booster—it stabilizes and increases the bubbles produced by other oils like coconut.
Mary Jane Tea: Cannabis plant materials contain antioxidants that may offer some benefit to skin health. Adds a unique, earthy or natural scent profile to the soap, acts as a natural colorant.
French Pink Clay: Provides gentle exfoliation, a soft pink hue and a silky feel, perfect for sensitive skin, oily skin or shaving soaps, by absorbing oils and impurities while creating a rich lather. 
Rose Essential Oil: Provides a strong, minty fragrance and a pleasant cooling sensation due to its menthol content, making it refreshing for skin and aromatherapy, with benefits like soothing irritation, boosting focus and acting as a natural antiseptic (though it should be kept away from sensitive areas like eyes).
Hibiscus Berry Tea: Natural color, texture and a fresh scent; creates a lovely aesthetic.