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INGREDIENT DICTIONARY
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PEG-40 Hydrogenated Castor Oil

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INCI: PEG-40 Hydrogenated Castor Oil / CAS #: 61788-85-0

PEG-40 hydrogenated castor oil is a solubiliser used in cosmetic formulations to disperse oils and fragrance into water-based systems.

Key benefits

  • Improves solubilisation
  • Enhances sensory profile
  • Maintains clarity
  • Widely compatible

Behaviour in formulations

PEG-40 hydrogenated castor oil surrounds oil droplets and enables stable dispersion in water-based systems.

Pre-mix with oil phase or add directly to water phase with mixing.

Use level considerations

Use Rate (Min): 1.0
Use Rate (Max): 5.0

  • Solubilisation: 1–5%
  • Depends on oil/fragrance load

Starter Use Rate: 1–3% for most cosmetic formulations

Typically used at 1–5% depending on oil load.

Formulation summary

  • Premium solubiliser
  • Improves sensory vs polysorbates
  • Suitable for low to moderate oil loads
  • Helps maintain clarity

Quality notes

High-quality cosmetic grade PEG-40 hydrogenated castor oil with strong active content (92.12%) and controlled acid and hydroxyl values, supporting consistent formulation performance. 

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