Shaving Syndet Bar Recipe

Shaving Syndet Bar Recipe

Creamy Lather | Good Razor Slip | Firm Bar

This shaving syndet bar is formulated to provide a rich, creamy lather with excellent glide for shaving while remaining gentle on the skin. The combination of surfactants, stearic acid, and conditioning ingredients helps create a firm bar with stable foam and reduced crumbling.

Ingredients (1000g Batch)

Phase A – Surfactants

• SCI Powder – 420g (42%)
• SLSA – 120g (12%)
• Cocamidopropyl Betaine – 100g (10%)

Phase B – Structure & Performance

• Stearic Acid – 170g (17%)
• Cetyl Alcohol – 50g (5%)
• Kaolin Clay – 30g (3%)
• Tapioca Starch or Cornstarch – 20g (2%)
• Shea Butter – 30g (3%)

Phase C – Additives

• Glycerine – 20g (2%)
• Panthenol – 10g (1%)
• Preservative – 10g (1%) (recommended)
• Fragrance Oil or Essential Oil – 10g (1%)
• Distilled Water – 10g (1%) (optional, if required for consistency)

Total Batch Size: 1000g

Equipment Required

• Digital scale
• Heat-safe bowls
• Spatula or mixing spoon
• Double boiler or hot plate
• Face mask
• Gloves
• Moulds

Method

1. Wear gloves, eye protection, and a face mask when handling powdered surfactants.
2. Combine the SCI powder and SLSA in a heat-safe bowl.
3. Add the Cocamidopropyl Betaine and gently heat to approximately 70–75°C while stirring until a thick paste forms.
4. In a separate container, melt the stearic acid, cetyl alcohol, and shea butter.
5. Add the melted ingredients into the surfactant paste and mix thoroughly.
6. Add the kaolin clay and starch and mix until evenly incorporated.
7. Add the glycerine and continue mixing.
8. Allow the mixture to cool below 45°C.
9. Add the panthenol, preservative, fragrance, and optional distilled water if needed.
10. Mix thoroughly until uniform.
11. Press firmly into moulds while the mixture is still warm.
12. Leave to harden for 48–72 hours before unmoulding.
13. Allow bars to dry for 5–7 days for maximum hardness.

Notes

• Target pH: 5–6
• If the mixture is crumbly, slightly increase Cocamidopropyl Betaine.
• If the bars are too soft, slightly increase starch or reduce liquid ingredients.
• Store bars in a dry area between uses to extend lifespan.

This formula produces a firm shaving bar with dense creamy lather, good cushion, and improved razor glide.