Stearic Acid III Pressed Slab is one of those foundational ingredients that quietly underpins some of the most beloved products in cosmetics, soap making, and candle crafting. Derived from natural vegetable and animal fat sources and pressed into solid slabs for clean, easy handling, this high-purity fatty acid brings structure, stability, and a luxuriously smooth texture to everything it touches.
In a cream or lotion, it’s the ingredient that gives the formula its body — that satisfying richness that spreads evenly and feels substantial without being heavy. In a bar of soap, it’s what makes the bar firm, long-lasting, and satisfying to hold. In a candle, it hardens the wax and extends burn time. A true multi-tasker that earns its place in every formulator’s toolkit.
Key Benefits
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Effective Emulsifier – acts as a co-emulsifier to help blend oil and water phases
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Thickening Agent – builds viscosity and body in creams, lotions & emulsions
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Stabilizer – prevents phase separation and improves shelf stability
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Hardening Agent – adds firmness and longevity to soaps and candles
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Texture Enhancer – contributes a smooth, creamy, rich finish to formulations
Applications
Cosmetics & Personal Care
- Creams, lotions & body butters
- Cleansers & emulsions
- Hair conditioners & styling products
Soap Making
- Bar soaps & handmade soap formulations
- Liquid soaps (as co-ingredient)
Candle Making
- Improves hardness and extends burn time
- Enhances structural stability of wax
Industrial
- Rubber & plastic processing
- Lubricants & protective coatings
Recommended Usage Levels
| Application |
Usage Level |
| Creams & Lotions |
2% – 5% |
| Soap Making |
3% – 10% |
| Candles |
5% – 20% |
Adjust percentage based on desired thickness, hardness, and texture of the final product.
Technical Profile
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INCI: Stearic Acid
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Form: Solid pressed slabs
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Color: White to off-white
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Source: Vegetable / animal origin
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Function: Emulsifier, thickener, stabilizer, hardening agent
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Grade: Cosmetic & Industrial
Formulation Tips
Melt fully in the oil phase before emulsification — it blends most effectively when fully liquefied. Combine with emulsifying wax or other co-emulsifiers for enhanced stability in cream and lotion formulations. Ideal for creating rich, thick textures in both rinse-off and leave-on products. Adjust the percentage to control the final hardness and viscosity of your formulation.
