The Ordinary Acid

On this page, acid can mean an exfoliant or a hydrating ingredient. Lactic, mandelic, and glycolic acids are exfoliating directions, while hyaluronic acid supports hydration rather than peeling.

This distinction is the most important shopping step. If you want smoother texture or glow, look at exfoliating acids. If your skin feels tight or dehydrated, hyaluronic acid is the more logical starting point.

The live assortment includes Lactic Acid 10%, Lactic Acid 5% style listings, and Mandelic Acid 10% formats. These are leave-on exfoliating acid products, so they should be introduced slowly.

Mandelic acid is often chosen when shoppers want a gentler exfoliating direction, while lactic acid is a familiar option for surface smoothing. Check the product title and percentage before buying because small wording differences matter with active formulas.

The grid includes The Ordinary Glycolic Acid 7% Exfoliating Toner 100ml. This belongs to the exfoliating side of the collection, not the hydrating side.

Use glycolic toner with care, especially if your skin is new to acids. Avoid stacking it in the same routine with several other exfoliating products until you know how your skin responds.

Hyaluronic Acid 2% + B5 appears in 30ml and 60ml formats in the live titles. This is the hydration-focused acid choice and is easier to place in a daily routine than exfoliating acids.

Apply hyaluronic acid serum before moisturizer. It pairs well under cream or sunscreen and is a better first pick for dehydrated-feeling skin than a peel-style acid.

Use exfoliating acids at night or in a routine where you can keep the rest of the steps simple. Cleanse, apply the acid product as directed, then follow with moisturizer.

Use sunscreen in the morning, especially when exfoliating acids are part of your routine. Hydrating acids such as hyaluronic acid can usually sit under sunscreen more easily than lactic, mandelic, or glycolic acid products.

If you are new to acids, start with one product and use it less often at first. Hyaluronic acid is the simplest entry point, while exfoliating acids require more caution.

If you already know your skin tolerates exfoliation, choose by acid type, percentage, and format. The Ordinary formulas are direct, so the label gives important information rather than decorative naming.

skinsli carries The Ordinary products in this live acid-focused assortment. This is not a Korean-only page, and the right product depends on the ingredient role shown in the title.

Before adding to cart, confirm whether the product is lactic, mandelic, glycolic, hyaluronic, or amino acid, then check the size and percentage. Similar-looking titles can have very different routine effects.