Can Lactic Acid Improve Skin Smoothness?
Lactic acid is a gentle ingredient from the alpha hydroxy acid family that helps make skin smoother by removing dead cells from the surface. It works without causing much irritation, especially for people with sensitive or dry skin.
This acid acts like a mild peel. It breaks down the bonds holding old skin cells together, so they shed naturally. Over time, this reveals fresher skin underneath, reducing roughness and uneven texture. Unlike stronger acids, lactic acid stays mostly on the surface because its molecules are larger. This slow action smooths the skin while keeping the protective barrier intact.
What makes lactic acid special is its double job. It exfoliates and pulls in moisture at the same time. As a humectant, it attracts water to the skin, leaving it soft and plump. Studies show it can boost skin hydration by a lot, even after short use. This hydration helps fill out fine lines and makes the surface feel even.
For sensitive skin, lactic acid shines as a safer choice over retinoids or harsh peels. Retinoids fight deeper aging but can irritate. Lactic acid offers steady improvement in texture and brightness without redness or dryness. Products like serums at 5 percent strength are common for beginners. They target dullness and rough patches, often with added soothing elements.
You can find lactic acid in creams, lotions, and body treatments. Start low, like once a day at night, and build up. It pairs well with moisturizers since it hydrates too. For rough areas like elbows or heels, higher amounts in creams soften thick skin fast.
People with conditions like eczema or rosacea often see benefits. It eases scaling and itching while smoothing. Always patch test first to check for reactions.
Sources
https://www.sadanews.ps/en/news/260052.html
https://www.newdirectionsaromatics.com/cosmetic-ingredients/raw-materials/lactic-acid
https://massivebio.com/urea-lactic-acid-based-cream-bio/
https://theordinary.com/en-us/lactic-acid-5-ha-exfoliator-100427.html
https://artisanthegoat.com/blogs/news/lactic-acid-in-skincare-the-source-matters-more-than-you-think
