The World's Leading Skincare Glossary, brought to you by Lesielle

The 1st Customized Skincare System that Adapts to YOUR Changing Needs


INCI: Sodium lactate

What is Sodium lactate?

Sodium lactate is the sodium salt of lactic acid, which is a type of alpha hydroxy acid (AHA). Sodium lactate is obtained through the fermentation of sugar sources such as corn starch, potatoes, or molasses. It is a clear liquid without any odor and is soluble in water. Sodium lactate is used as a preservative, bulking agent, and in medicines.

Use & Benefits:

Uses & Benefits:
•    Humectant, Preservative, and Buffering Agent: Sodium lactate is used in a variety of cosmetic products.
•    Natural Moisturizing Factor (NMF): Sodium lactate occurs naturally in the skin as part of NMF. With aging, the NMF factor reduces, which leads to aging effects such as fine lines and wrinkles.
•    Replenishes and Moisturizes Skin: Sodium lactate present in the product replenishes and moisturizes the skin. It draws water from the water vapor present in the air and moisturizes the skin.
•    Suitable for All Skin Types: It can be used on all skin types, especially on normal and mildly dry skin types.
•    Retains Moisture and Enhances Water Retention: It helps in retaining moisture in the skin, enhances the water retention capacity of the skin, and aids in shedding dead cells from the skin.
•    Protects Skin from Infections: It protects the skin from infections such as acne.
•    Improves Skin Appearance: It makes the skin appear softer, smoother, and more hydrated.

pH Balance:
•    Maintains Skin's Normal pH Balance: The pH of the skin is slightly acidic, known as the acidic mantle. It is maintained by the sebaceous glands, sweat glands, and natural flora of the skin.
•    Provides Protection to the Skin: This provides protection to the skin from external factors such as microbes, irritants, and exposure to harmful rays.
•    Reduces Premature Aging and Irritation: It helps in reducing premature aging and irritation of the skin.
•    Important to Maintain Normal pH Balance: It is important to maintain the normal pH balance of the skin to prevent detrimental effects on the skin such as itching and depletion of vital lipids from the skin.
•    Functions as pH Adjusters and Mild Preservative: pH adjusters or buffers maintain this pH balance of the product and prevent the skin's pH from shifting too far from the normal one. It also functions as a mild preservative and protects the product from deteriorating due to the growth of fungus in the product.

Usage in Products:
•    Used in Various Cosmetic and Hair Care Products: Sodium lactate is used in the formulation of makeup products, eye contour, shampoos, conditioners, and other skin and hair care products.

Personalized & Adaptive skincare system

Create your own custom skincare and  adapt it to your skin changes

How to create your own Personalized Skincare with Lesielle?

Icons of the lesielle custom skin care system

Step 1: Select a nourishing base compatible with your skin, and your desired moisturization level

Step 2: Complete your treatment with up to four active ingredients for consistent and occasional use.

Step 3: Insert your base and up to four actives ingredients into your Lesielle device to produce a fresh single dose of face cream on demand when you need it.

Complete your routine with a cleanser and other complimentary products and accessories.


Don't you know what Base and Actives your skin needs?

Take our personalized skincare quiz.

Notice: the information collected here is limited in terms of use and scope. See terms and conditions.

The skincare system for an ever evolving skin, using recognized active ingredients with scientifically proven efficacy to create treatment tailored to each day's State of Skin. 

  • All rights reserved 2022.