Stearic Acid
Stearic Acid
Stearic Acid
Stearic Acid
Stearic Acid
Stearic Acid
Stearic Acid
Stearic Acid
Stearic Acid
Stearic Acid
Stearic Acid
Stearic Acid

Stearic Acid

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Stearic acid is a saturated fatty acid that is widely used in a variety of industries, including cosmetics, personal care, and food. It is known for its thickening, emulsifying, and stabilizing properties, which make it a common ingredient in skincare and hair care products. Stearic acid is derived from both plant and animal sources, with the most common plant-based sources being palm oil and coconut oil.

Benefits of Stearic Acid

  • Emulsifying Agent: Stearic acid helps to stabilize emulsions, allowing oil and water-based components to blend smoothly in products like creams and lotions.
  • Thickening Agent: It adds viscosity to products, providing a desirable consistency in skincare and hair care items.
  • Surfactant Properties: Stearic acid acts as a surfactant, allowing it to cleanse and remove dirt and oils from the skin.
  • Skin Conditioning: It has mild emollient properties, helping to soften and condition the skin.
  • Environmentally Friendly: Plant-derived stearic acid is considered more sustainable and biodegradable compared to animal-derived sources.

Common Uses of Stearic Acid

Skincare Products

Stearic acid is commonly used in skincare products for its emulsifying and thickening properties. Common applications include:

  • Creams and Lotions: To stabilize emulsions and add thickness, typically used at 1–10%
  • Moisturizers: To provide a smooth, creamy texture
  • Cleansers and Body Washes: As a surfactant and thickening agent

Hair Care Products

In hair care, stearic acid helps create a rich texture and acts as a conditioner. Common uses include:

  • Shampoos and Conditioners: To add thickness and conditioning properties
  • Hair Masks and Treatments: For its emollient effects

Candle Making

Stearic acid is also used in candle making to harden candles, allowing them to hold their shape and burn more evenly. Common usage percentages for candle making are:

  • Candles: Typically 5–10%

Soap Making

Stearic acid is used in soap making to add hardness to the soap and enhance its lathering properties. Common usage percentages for soap making are:

  • Soaps: Generally 1–5%

Food and Pharmaceuticals

Stearic acid is also used in food products as an emulsifier and stabilizer. In pharmaceuticals, it acts as a tablet binder and lubricant.

Product Specifications

  • INCI Name: Stearic Acid
  • CAS No: 57-11-4
  • Form: Waxy solid
  • Color: White to off-white
  • Product Type: Fatty acid
  • Usage: Skincare, hair care, candles, soap making, food, pharmaceuticals
  • Purity: Typically 95–99%
  • Shelf Life: 2 years or more

Storage and Handling

Store stearic acid in a cool, dry place, in a sealed container to prevent contamination and moisture absorption. Keep it away from direct sunlight to maintain its quality and consistency.