Product information
- Country of origin: Spain
- Chemical formula: C18H36O2
- EM1647
- CAS number: 57-11-4
Prices always include VAT.
Description
Stearic acid is a saturated fatty acid with a wax-like appearance at room temperature, obtained by hydrogenating vegetable oils.
Its high melting point adds extra hardness to soaps and candles, while also providing shine and lowering the pH.
Lip balms tend to melt in summer, so adding stearic acid provides extra hardness to prevent this.
Used in creams, it helps moisturise the skin, adding softness and acting as a protective barrier.
In glycerine soaps, it prevents droplets from forming as the soap sweats in humid climates.
As different types of this product are available according to concentration and purity, here is a summary to help you choose the right one for the product you want to develop. For candles, 50/50 or 60/40 may be more suitable, as they add hardness while allowing some flexibility. The pure version provides extreme hardness and firmness.
1. Comparison of Stearic Acids Available at Mi Cosmética Casera
This short summary will help you choose the type that best suits your needs.
| Feature | Stearic 50/50 | Stearic 60/40 | Stearic 98% (Pure) |
|---|---|---|---|
| Composition | 50% stearic acid, 50% palmitic acid | 60% stearic acid, 40% palmitic acid | 98% stearic acid, 2% traces |
| Melting Point | Lower (approx. 54-56°C) | Intermediate (approx. 56-58°C) | Higher (approx. 69-70°C) |
| Final Texture | Softer | Intermediate | Firmer and more structured |
| Main Uses | Light lotions, soft creams | Thicker creams, medium-hard soap bars | Hard soaps, candles, pressed make-up |
| Oxidative Stability | Good | Very good | Excellent |
| Ease of Use in Formulation | Easy to incorporate at lower temperatures | Balance between hardness and stability | Requires greater temperature control |
2. Use in Soaps
| Feature | Stearic 50/50 | Stearic 60/40 | Stearic 98% (Pure) |
|---|---|---|---|
| Lather | Creamy and light | Creamy and dense | Rich but less creamy |
| Soap Hardness | Soft, less brittle | Intermediate | Very hard and long-lasting |
| Main Applications | Mild, economical soaps | Medium-hard soaps with greater longevity | Premium, long-lasting soaps |
3. Use in Emulsions
| Feature | Stearic 50/50 | Stearic 60/40 | Stearic 98% (Pure) |
|---|---|---|---|
| Properties | Softens and stabilises | Improves stability and texture | Provides high stability and firmness |
| Emulsion Texture | Light and easy to apply | Thicker and more consistent | Very firm and structured |
| Main Applications | Light lotions and creams | Body and facial creams | Anti-ageing creams, sunscreens |
4. Use in Candles and Solid Products
| Feature | Stearic 50/50 | Stearic 60/40 | Stearic 98% (Pure) |
|---|---|---|---|
| Hardness | Low, less suitable | Intermediate | Ideal for maximum hardness |
| Product Longevity | Moderate | Good | Excellent |
| Main Applications | Less commonly used in candles | Intermediate solid products | Premium candles, compact solid products |
Use in Lip Balms.
This stearic acid, with a melting point above 70ºC, is ideal for making your lip balms more resistant in summer by providing the necessary stability and hardness.
More technical information
Certificate of analysis:
| Result | Standard |
Molecular illustration
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Reviews
Customer reviews 24 item(s)
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Me gusta mucho el envase de papel
Pros (original): Todas
Cons (original): Ninguna
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Lo he añadido a mis jabones para que sean un poco más duros. Cuando los pruebe, -están fraguando sus 40 dias--,comentaré el resultado.
Pros (original): Todas para lo que lo quería
Cons (original): Ninguna
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Todo bien
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Este ácido esteárico ha sido mi salvación. Consigues una textura uniforme y los bálsamos no se derriten con facilidad incluso en zonas de alta temperatura.
Pros (original): Todas!!!!
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con prácticamente la mitad consigues lo mismo que con otros de otras marcas. La diferencia es muy grande y endurece con muy poco. Para las velas prefiero el de siempre ya que aún no he podido ajustar la fórmula con este
Pros (original): Calidad y precio. El envase es ideal
Cons (original): Para velas hay que tener cuidado si quieres hacer formas.
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Necesitaba un a.estearico puro y es el unico sitio donde lo he encontrado
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Excelente calidad.
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Gosto muito
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Satisfecha con la compra
Pros (original): Calidad del producto
Cons (original): Los envíos a Canarias tardan. aunque vale la pena esperar.
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Bien sellado y contenta con el producto. Lo uso para endurecer los jabones. Lo recomiendo! Con el hice estos jaboncitos, que podéis ver próximamente en mi perfil @naturmentallers
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