Sodium Lactate (60% Solution)

SODIUM LACTATE (60% SOLUTION)

Origin & Source

Sodium Lactate is the sodium salt of lactic acid, produced through the natural fermentation of plant-derived sugars—most commonly from corn or sugar beets. During fermentation, sugars are converted into lactic acid, which is then neutralized with sodium to create sodium lactate. The 60% solution refers to the concentration commonly used in cosmetic formulations, dissolved in purified water for accuracy, stability, and ease of use. Although produced through fermentation, sodium lactate mirrors a compound naturally present in human skin.

Biochemical Profile & Relationship to Skin Biology

Sodium Lactate is a key component of the skin’s Natural Moisturizing Factor (NMF)—a group of substances that maintain hydration, elasticity, and barrier function in healthy skin. Its molecular structure allows it to bind water very efficiently, often outperforming glycerin in long-lasting hydration. Unlike exfoliating lactic acid, sodium lactate is non-acidic and does not exfoliate the skin; instead, it focuses purely on hydration, comfort, and barrier support.

Skin Function & Benefits

On the skin, Sodium Lactate delivers deep, sustained hydration by drawing water into the stratum corneum and helping retain it over time. It improves skin softness, smoothness, and flexibility while reducing the feeling of tightness or dryness. Because it supports the skin’s natural moisture balance, it is especially beneficial for dry, mature, or barrier-compromised skin. When properly formulated, it is well tolerated and suitable for sensitive skin.

Formulation Role & Performance Benefits

In formulation, Sodium Lactate serves multiple functional roles. It acts as a powerful humectant, a pH buffer, and a formulation stabilizer. It enhances preservative efficacy, improves skin feel, and helps prevent products from drying out. In emulsions, it contributes to a smoother, more hydrated finish without tackiness. Because it is hygroscopic, it also helps improve the longevity and performance of water-based formulas.

Typical Uses in Skincare & Body Care

Sodium Lactate is commonly used in creams, lotions, body butters, facial serums, toners, sprays, cleansers, soaps, and hair care products. It is especially valuable in leave-on formulations designed to deliver long-lasting hydration and improved barrier comfort.

Why Unicorn Tears Uses It

Unicorn Tears uses Sodium Lactate (60%) because it delivers biologically relevant hydration—the kind the skin recognizes and responds to naturally. It enhances moisture retention, improves softness, and supports barrier health while refining the overall sensory experience of a formulation. As a fermentation-derived, skin-native hydrator, it aligns perfectly with the brand’s philosophy of intelligent luxury, transparency, and truly effective skincare.