What is lactic acid and how is it used in skincare?
Lactic acid is an alpha hydroxy acid (AHA) derived from milk and sugar that is widely used in skincare for its exfoliating properties. It helps remove dead skin cells from the surface, promoting a brighter and smoother complexion. This ingredient is commonly found in cleansers, serums, and peels to improve skin texture and tone.
Is lactic acid safe for all skin types?
Lactic acid is generally considered safe for most skin types, including sensitive skin, due to its mild nature. However, it’s always advised to do a patch test before incorporating it into your routine. People with very sensitive or damaged skin should consult a dermatologist before use to avoid irritation.
What are the main benefits of lactic acid?
Lactic acid offers several skincare benefits. It gently exfoliates the skin, unclogs pores, and improves moisture retention. It also reduces the appearance of fine lines, dark spots, and uneven skin tone. Over time, regular use of lactic acid can lead to smoother, clearer, and healthier-looking skin.
How often should I use lactic acid products?
Lactic acid can be used anywhere from once a week to a few times a week depending on the product’s strength and your skin’s tolerance. Beginners should start with a lower concentration and apply it once or twice a week to avoid irritation, gradually increasing frequency as tolerated.
Can lactic acid cause side effects?
Although lactic acid is milder compared to other chemical exfoliants, it can still cause side effects like redness, dryness, or irritation, especially when overused. Always follow the instructions on the product and consider layering it with moisturizing ingredients to protect your skin barrier.
Should I use sunscreen with lactic acid?
Yes, applying sunscreen daily is essential when using lactic acid products. Lactic acid increases cell turnover, which can make your skin more sensitive to the sun. Using a broad-spectrum SPF of at least 30 helps protect against sun damage and maintains the benefits of your skincare routine.
What products can I combine with lactic acid?
Lactic acid pairs well with hydrating ingredients like hyaluronic acid, which can boost moisture and help mitigate dryness. Avoid combining it with other strong acids or active ingredients like retinol unless directed by a professional, as this may increase the risk of irritation.
What is the difference between lactic acid and glycolic acid?
Both lactic acid and glycolic acid are AHAs, but lactic acid has a larger molecular size, making it less likely to penetrate deeply and cause irritation. Glycolic acid is stronger and may work faster, while lactic acid is better suited for sensitive skin or those new to chemical exfoliants.