The ISOV L-Toning Liquid is a professional-grade chemical peel formulated with 40% Lactic Acid at pH 2.5, designed to deliver controlled epidermal exfoliation while supporting hydration and pigment correction. This high free acid value enables effective breakdown of intercellular bonds within the stratum corneum, allowing for the targeted removal of melanin-laden keratinocytes.

Unlike more aggressive acid systems, lactic acid functions as a humectant while exfoliating, stimulating glycosaminoglycan (GAG) production and supporting intrinsic moisture retention during the peeling process. This makes the L-Toning Liquid particularly suitable for dry, melasma-prone, and sensitive skin types that cannot tolerate faster-penetrating acids such as glycolic acid.

The controlled resurfacing process improves tone uniformity, refines skin texture, and reduces visible dullness without excessive barrier disruption. By maintaining hydration throughout exfoliation, the skin remains more resilient, allowing for safer and more consistent treatment outcomes.

This formulation requires proper neutralisation to terminate acid activity and prevent over-exfoliation. This step is essential to ensure treatment safety, minimise irritation, and maintain full control over peel depth and performance.

Optimised for professional protocols, the L-Toning Liquid enhances the penetration of subsequent active ingredients, making it an ideal preparatory step within advanced brightening and skin renewal treatments. The result is a clearer, more even, and hydrated complexion with improved overall skin function.