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INGREDIENT DICTIONARY
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Sodium Lactate (60%) – 60%

INCI: Sodium Lactate / CAS #: 72-17-3

Sodium lactate is a water-soluble humectant and buffering agent commonly used in cosmetic formulations to support hydration and maintain pH stability. It is typically supplied as an aqueous solution and is valued for its strong water-binding capacity.

Key benefits

  • Strong humectant with high water-binding capacity
  • Supports pH buffering and stability
  • Enhances hydration systems
  • Broad compatibility across formulations

Behaviour in formulations

Sodium lactate is compatible with:

  • water-based systems and emulsions
  • gels, lotions, and surfactant-based products
  • a wide range of actives and functional ingredient

It is typically added to the water phase and integrates easily under standard processing conditions

Add to the water phase with mixing until uniform. Suitable for cold-process and heated systems.

Use level considerations

Use Rate (Min): 0.5
Use Rate (Max): 5.0

  • Leave-on: 1–3%
  • Rinse-off: 1–5%
  • Higher levels may increase tack and require pH adjustment.
  • Often used in combination with glycerin or glycols

Starter Use Rate: 2-3% for most cosmetic formulations.

At typical use levels (1–5%), sodium lactate provides strong hydration and contributes to improved moisture retention.

At higher levels, it may increase tack or influence formulation viscosity and pH, so balancing within the system is recommended.

Formulation summary

  • Strong humectant with higher water-binding capacity than glycerin
  • Also functions as a buffering agent
  • Suitable for gels, emulsions, and surfactant systems
  • Often used to enhance hydration systems

Quality notes

This sodium lactate is a cosmetic-grade solution with a verified active content of 60.8% and high L-isomer purity (98.2%). It is batch tested for clarity, microbial safety, and consistency to support reliable formulation performance.

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