What is Lactic Acid (AHA)?
One of the most popular ingredients in the cosmetic world supporting skin renewal, Lactic Acid is a prominent member of the Alpha Hydroxy Acid (AHA) family. Traditionally found naturally in dairy products, in modern cosmetic formulations, it is generally produced from plant sources or through biological fermentation methods to be vegan-friendly. Its molecular structure is larger compared to glycolic acid from the same family. This dimensional difference allows lactic acid to work in the upper layers of the skin in a slow and controlled manner. Frequently found in Lacinia products, this acid is known for its gentle nature and takes on the task of refreshing the skin without straining the upper barrier. It is considered one of the indispensable cornerstones of an ideal skincare routine.
Benefits in Skincare
Lactic acid is one of the rare acids with both exfoliant (peeling) and humectant (moisture-attracting) properties. While gently dissolving dead cell bonds on the skin surface to support a brighter and smoother appearance, it also significantly increases the skin's moisture capacity.
- Intensively moisturizes the skin: Lactic acid draws moisture from the environment and traps it in the skin, making the skin look fuller and saturated with moisture.
- Brightens skin tone: With regular use, it removes the dull and lifeless appearance on the skin surface, revealing a radiant and clear skin texture.
- Smoothes and softens texture: It gently purifies the rough skin surface, leaving a velvety soft feeling.
- Vitalizes the skin: It refreshes and invigorates tired-looking skin by supporting the cellular turnover process on a cosmetic scale.
How to Use?
The most ideal method is to include serums or tonics containing lactic acid in your evening skincare routine. After cleansing and drying your skin, you can apply it in a thin layer, then complete your routine with your favorite moisturizer. If you are new to cosmetic acids, it is recommended to start by using it once or twice a week to let your skin get used to it. Since the use of acids can increase skin sensitivity, a broad-spectrum sunscreen must be applied during daytime use or the following morning.
Who Can Use It?
Thanks to its large molecular structure, lactic acid is an ideal option for individuals with sensitive tendencies or dry skin types. All skin types that have become dull, lost moisture, have textural irregularities, and need radiance can benefit from this unique ingredient.
Things to Consider
It is always recommended to perform a patch test on the inside of your wrist before using a new cosmetic product. Since products containing acids can increase the skin's sensitivity to the sun, the use of sunscreen should never be neglected. Keeping it away from thin-textured, reactive areas such as the eye contour and lip edges is important for skin comfort.