STEARIC ACID RSPO
Origin
Stearic Acid RSPO (Roundtable on Sustainable Palm Oil–certified) is a vegetable-derived saturated fatty acid obtained primarily from sustainably sourced palm and palm kernel oils. This ingredient is produced through the fractionation and hydrogenation of natural triglycerides, yielding a high-purity, biodegradable fatty acid. RSPO certification ensures that the palm oil used is ethically harvested under sustainable environmental and social standards, supporting eco-responsible supply chains.
Summary
Stearic Acid RSPO is a versatile structuring and emulsifying agent widely used in cosmetic, skincare, and haircare formulations. It provides excellent thickening, stabilizing, and consistency-enhancing properties in both oil-in-water (O/W) and water-in-oil (W/O) emulsions. Known for its creamy texture and elegant finish, Stearic Acid also acts as an emollient, imparting a smooth, soft feel while reinforcing emulsion stability. Its sustainable RSPO certification makes it an ideal choice for clean, natural, and eco-conscious formulations.
Technical Data
- INCI Name: Stearic Acid
- CAS Number: 57-11-4
- Chemical Class: Long-chain saturated fatty acid (C18)
- Source: RSPO-certified palm and palm kernel oil
- HLB (Hydrophilic-Lipophilic Balance): 15.0 (lipophilic; co-emulsifier and thickener)
- Molecular Formula: C₁₈H₃₆O₂
- Molecular Weight: 284.48 g/mol
- Melting Point: 69–70 °C
- Solubility: Insoluble in water; soluble in oils, alcohols, and ethers
- Acid Value: 203–210 mg KOH/g
- Iodine Value: ≤ 1.0
- Saponification Value: 206–212 mg KOH/g
- RSPO Certification: Mass Balance (MB) or Segregated (SG) available
- Shelf Life: 36 months (store in a cool, dry place away from direct light and moisture)
Usage Level in Cosmetics and Personal Care Products
- Creams & Lotions: 1–5 %
- Body Butters & Balms: 2–10 %
- Cleansers & Soaps: 1–8 %
- Conditioners & Hair Masks: 1–4 %
- Deodorants & Sticks: 3–8 %
Properties
- Provides structure, body, and stability to emulsions
- Acts as a co-emulsifier and thickener in O/W systems
- Enhances skin feel with smooth, non-greasy texture
- Contributes to opacity and consistency
- Compatible with natural oils, waxes, and emulsifiers
- 100% plant-derived and RSPO-certified sustainable
- Biodegradable and environmentally friendly
- Supports clean and eco-conscious product labeling
Appearance
White to off-white waxy flakes or beads with a mild, neutral odor.
Product Overview
Suncoast Personal Care Products Stearic Acid RSPO is a high-purity, sustainably sourced fatty acid that enhances stability, structure, and sensorial quality in a broad range of formulations. Functioning as a thickener, co-emulsifier, and emollient, it produces smooth, creamy, and elegant textures in creams, lotions, and conditioners. With RSPO-certified sustainability, Suncoast Personal Care Products Stearic Acid RSPO aligns perfectly with clean beauty and responsible formulation principles, offering performance with integrity.
Environmental Working Group (EWG) Safety Level
EWG Rating: 1 (Low Hazard) — Safe, non-toxic, and fully biodegradable; suitable for natural and sustainable formulations.
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