Sodium Lactate (60%)

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.

What is Sodium Lactate (60%) – 60% & why is it used?

Sodium lactate functions as a humectant and buffer, helping to attract and retain moisture while contributing to pH control within a formulation.

It is commonly used in combination with other humectants to enhance overall hydration performance.

QUALITY MATTERS

Why specification quality matters

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.

Solubility Water soluble

Primary function Humectant

Use level 0.5–5.0%

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

Sensory notes

Sodium lactate contributes strong hydration but may feel slightly more tacky than glycols at higher use levels. It is typically used in combination with other humectants to balance sensory profile and improve overall formulation feel. Sensory outcome is formulation-dependent; bench testing is recommended.

Formulation considerations

PROCESSING

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

COMPATIBILITY

Compatible with most cosmetic ingredients
Supports pH stability in formulations
Works well in humectant blends

pH

Effective within typical cosmetic pH ranges. Contributes to buffering around neutral pH (~6–7).

FORMULATION EXAMPLES

Hydrating toner or mist

Sodium lactate: 2–4%
Glycerin: 2–3%
Actives as required
Preserved aqueous base to 100%

Enhances hydration while supporting moisture retention.

Serum or gel system

Sodium lactate: 2–5%
Complementary humectants as required
Polymer thickener: as required
Neutralise and preserve appropriately

Improves hydration performance and contributes to pH stability.

Cream or lotion (emulsion)

Sodium lactate: 1–3% (water phase)
Emollients and emulsifier system as required
Preserved to finished formula

Supports hydration and contributes to formulation balance

Use level considerations

Recommended range 0.5–5.0%

Suggested starting level 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

Sodium lactate is a highly effective humectant and buffering ingredient that strengthens hydration systems while supporting formulation stability. It is particularly useful in formulations requiring both moisture retention and pH control.

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.