Lactic Acid, a member of the alpha hydroxy acid (AHA) family, has garnered attention in the realm of skincare for its multifaceted benefits rooted in scientific research. This gentle yet potent exfoliant has revolutionised skincare routines, demonstrating efficacy in addressing various skin concerns and fostering a healthier complexion.
As an (AHA) alpha hydroxy acid with all the associated benefits of increasing cell turnover and smoothing aged skin. It works to dissolve the bonds between old, dead skin cells. It’s therefore known as an exfoliator, and for working particularly well at improving discolouration and dull skin.
However, it is composed of slightly larger molecules than other AHAs. Its larger size means it works at a slighter slower pace, making this unsung AHA a more predictable worker than its quicker and (dare we say) more unruly counterparts. This slower-motion action means you get all the action, and none of the potential sensitivity that can be associated with acidic exfoliation. So, it’s the perfect AHA for ALL skin types and ideal if you have sensitive skin, those who are new to using acids or those who want to combine AHAs with retinoids.
The lower the percentage of lactic acid, the more frequently you can use it.
Benefits:
- Gentle Exfoliation and Skin Renewal: Lactic Acid's larger molecular size allows for gentler exfoliation compared to some AHAs. It aids in dissolving the bonds between dead skin cells, promoting their shedding. This process reveals a smoother skin texture, stimulates cellular turnover, and imparts a radiant complexion.
- Hydration Amplification and Moisture Retention: Unlike some exfoliants, Lactic Acid also exhibits humectant properties. Lactic acid has been shown to have hydrating properties by binding to water molecules. It attracts moisture to the skin, enhancing hydration levels and supporting a plump, supple skin texture, making it suitable for dry or sensitive skin types.
- Collagen Production and Anti-Ageing Effects: Scientific studies indicate Lactic Acid's potential to stimulate collagen synthesis. Increased collagen production contributes to improved skin elasticity, diminished fine lines, and a reduction in the appearance of wrinkles, promoting a more youthful skin appearance.
- Pigmentation Control and Even Skin Tone: Lactic Acid's exfoliative action aids in reducing the appearance of dark spots and hyperpigmentation. By encouraging cellular turnover, it helps even out skin tone, diminishing discolouration and promoting a more uniform complexion.
- Skin Barrier Support and Sensitivity Alleviation: Its gentle exfoliating properties are suitable for sensitive skin. Lactic Acid assists in maintaining the skin's natural barrier function, aiding in alleviating sensitivity and reducing the occurrence of irritation.
Sources
https://www.ncbi.nlm.nih.gov/pubmed/8784274
https://pubmed.ncbi.nlm.nih.gov/30270529/
