The material selection platform
Cosmetics Ingredients
The material selection platform
Cosmetics Ingredients


CAS Number 72-17-3 / 867-56-1
Chem/IUPAC Name: Sodium lactate
EINECS/ELINCS No: 200-772-0 / 212-762-3
COSING REF No: 79577
Sodium Lactate is a common ingredient used in cosmetics and personal care products. It is the sodium salt of lactic acid, a natural acid derived from the fermentation of sugars. Sodium Lactate is typically a clear, colorless liquid with a mild odor and serves multiple functions in skincare products. It acts as a humectant, attracting and retaining moisture in the skin, promoting hydration and preventing dryness. Additionally, Sodium Lactate can function as a pH regulator, helping to stabilize and adjust the pH of formulations. The chemical formula of Sodium Lactate is NaC3H5O3.

What is SODIUM LACTATE used for?

Sodium Lactate finds versatile uses in skincare, cosmetics, and hair care products, offering several benefits for each.
  • Skin care: It functions as a humectant, attracting and retaining moisture in the skin. It helps to hydrate and improve the skin's moisture balance, making it beneficial for dry or dehydrated skin types. Additionally, Sodium Lactate can contribute to the overall texture and feel of skincare formulations, providing a smoother and more luxurious application
  • Cosmetic products: It is commonly used as a pH regulator. It helps to stabilize and adjust the pH of formulations, ensuring they remain within the desired range for optimal effectiveness and compatibility with the skin. By maintaining the appropriate pH, Sodium Lactate supports the stability and efficacy of cosmetic products
  • Hair care: It can act as a conditioning agent, enhancing the softness and manageability of the hair. It can help to reduce frizz, improve combability, and promote a smoother appearance. Sodium Lactate's moisturizing properties aid in maintaining healthy and hydrated hair strands


Sodium Lactate is manufactured by neutralizing lactic acid with sodium hydroxide. This process involves combining lactic acid, obtained through fermentation or chemical methods, with sodium hydroxide to create Sodium Lactate. The resulting sodium salt is then purified for use in cosmetics and personal care products.

What does SODIUM LACTATE do in a formulation?

  • Buffering
  • Humectant
  • Keratolytic

Safety profile

Sodium Lactate is considered safe for use in cosmetics. It has undergone safety evaluations and is widely used in personal care products and cosmetics. However, it's important to note that individual sensitivities can vary, so it's recommended to perform a patch test before using it extensively to check for any potential allergic reactions or skin sensitivities.

Technical profile

Property Values
Boiling Point 113°C
Melting Point 161-162°C
pH 6.5
Solubility Highly soluble in water
Viscosity Low
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