Cleansing is the first step in every routine, and it's the one most people rush through—or overdo. Here's the simple version.

Why it matters

Your skin collects sunscreen, makeup, oil, and daily grime throughout the day. Cleansing clears that away so the rest of your routine can actually absorb instead of sitting on top of a layer of buildup.

How to do it

Wash with a gentle, low-foam cleanser once in the morning and once at night. If you wore sunscreen or makeup that day, consider a "double cleanse" in the evening: an oil-based cleanser first to break down makeup and SPF, followed by your regular water-based cleanser.

What to avoid

Skip anything that leaves your skin feeling tight or squeaky-clean—that's a sign it stripped your skin's natural barrier. A good cleanser should leave your face feeling comfortable, not stiff.

The takeaway

Twice a day, gentle formula, no scrubbing. That's it.

Short answer: it depends on your skin, and it's more helpful than the name suggests.

What toner actually does

Modern K-beauty toners aren't the harsh, alcohol-based astringents of the past. Today's toners are hydrating, prepping your skin to better absorb the products that follow—like a first layer of water for thirsty skin.

Who benefits most

If your skin tends toward dry, dull, or tight after cleansing, a hydrating toner can make a noticeable difference. If your skin is already balanced and comfortable, it's optional—a nice-to-have, not a must-have.

How to use it

Pat (don't rub) onto clean skin with your hands or a cotton pad, right after cleansing and before serum or moisturizer.

The takeaway

Not essential for everyone, but a low-effort way to boost hydration if your skin needs it.

Moisturizer is the step that seals everything in—but the right formula depends on your skin type.

Oily or combination skin

Look for lightweight, gel-based, or water-based moisturizers. You still need moisture—skipping it can actually cause your skin to overproduce oil.

Dry skin

Richer, cream-based formulas with ingredients like ceramides or hyaluronic acid help replenish moisture and support your skin barrier.

Sensitive skin

Look for short ingredient lists, fragrance-free formulas, and soothing ingredients like centella asiatica or panthenol.

Post-menopausal or mature skin

Skin often needs more support in the moisture-retention department. Richer creams with ceramides and peptides can help address both hydration and firmness.

The takeaway

Every skin type needs moisturizer—the formula is what changes.

If there's one step to never skip, it's this one.

Why it's the most important step

Sun exposure is the single biggest driver of visible skin aging. Fine lines, dark spots, and loss of firmness are largely sun-related. No serum or cream can undo daily unprotected sun exposure.

How to use it

Apply SPF 30 or higher every morning, rain or shine, as the last step of your routine (before makeup, if you wear it). Reapply if you're outdoors for extended periods.

Common myth

"My moisturizer has SPF in it" is often not enough coverage on its own. Check the label, and don't be afraid to add a dedicated sunscreen.

The takeaway

Every other step in your routine works better when your skin is protected.

Both are forms of vitamin A, and both help with fine lines, texture, and cell turnover — but they're not identical.

Retinol

The most common and widely available form. It converts to retinoic acid (the active form your skin uses) through two conversion steps, which makes it gentler but slower to show results.

Retinal (retinaldehyde)

One conversion step closer to retinoic acid, which generally means faster results — but also a higher chance of irritation for sensitive skin, especially when starting out.

Which to choose

If you're new to vitamin A products, start with retinol, a lower concentration, and just a few nights a week. If you've built up tolerance and want faster results, retinal is worth considering.

The takeaway

Both work. Retinol is gentler and slower; retinal is stronger and faster. Start low, go slow either way.

Azelaic acid is one of the more underrated ingredients in skincare—gentle, multitasking, and well tolerated by most skin types.

What it does

It helps calm redness, fade discoloration and dark spots, and can help with mild breakouts—all while being gentler than many other active ingredients.

Who it's good for

Because it's well tolerated, it's a solid option for sensitive skin, rosacea-prone skin, or anyone dealing with post-breakout marks or uneven tone.

How to use it

Usually applied once or twice daily as a serum, and it can typically be layered with other actives without much fuss.

The takeaway

A gentle multitasker worth considering if redness, discoloration, or occasional breakouts are a concern.

A staple in Korean skincare, sea buckthorn (Hippophae rhamnoides) is prized for its nutrient density.

What it is

An orange berry rich in omega fatty acids, vitamin C, and antioxidants, often used in oils and serums.

What it does

Helps support the skin barrier, adds nourishment, and offers antioxidant protection against everyday environmental stress.

Who it's good for

Especially well suited to dry or compromised skin barriers looking for deep nourishment.

The takeaway

A nutrient-rich, barrier-supporting ingredient that's great for skin needing extra nourishment.

Azelaic Acid — Calms redness, fades discoloration, and is gentle enough for sensitive skin.

Ceramides — Lipids that help repair and maintain the skin barrier.

Centella Asiatica (Cica) — A soothing, calming ingredient popular in K-beauty for irritated skin.

Hyaluronic Acid — A humectant that draws moisture into the skin.

Niacinamide — Helps improve tone, texture, and oil balance.

Panthenol — A soothing, hydrating derivative of vitamin B5.

Retinal / Retinol — Vitamin A derivatives that improve texture, fine lines, and cell turnover.

Sea Buckthorn — A nutrient-dense oil that supports the skin barrier and provides nourishment.