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Frequently asked questions about korean skincare
What skincare routine do I actually need?
Morning: gentle cleanser + vitamin C serum + moisturizer + SPF (mandatory). Night: cleanser + retinoid (3 nights/week starting) + moisturizer. That's it. The 12-step Korean routine is overkill for most people and causes irritation. Add targeted treatments (hyaluronic acid, niacinamide) only if you have specific concerns.
How often should I use retinol?
Start 2 nights per week, increase gradually to nightly over 8-12 weeks. Use peas-sized amount for the whole face. Always pair with SPF the next morning (retinol increases sun sensitivity). Beginners: The Ordinary Granactive Retinoid 2% ($10) or Differin Gel ($13). After 6+ months: graduate to prescription tretinoin if you want more dramatic results.
What's the best sunscreen for daily use?
EltaMD UV Clear SPF 46 ($40) — favorite of dermatologists. Beauty of Joseon Relief Sun ($16) — Korean alternative with elegant texture. Supergoop! Unseen Sunscreen — invisible under makeup. Mineral (zinc oxide) for sensitive skin; chemical (avobenzone) for cosmetic invisibility. Apply every morning, even cloudy days, even indoors near windows.
Vitamin C serum — is it worth the money?
Yes — Vitamin C is the single most-researched ingredient for brightening, evening tone, and preventing photo-aging. Skinceuticals C E Ferulic ($169) is the gold standard but pricey. Cheaper effective alternatives: Timeless 20% Vitamin C+E+Ferulic ($30), The Ordinary Ascorbyl Glucoside ($12). Apply in the morning under sunscreen for synergistic effect.
How do I figure out my skin type?
Wash face, wait 30 minutes without applying anything, then assess: oily (shiny all over), dry (tight, flaky), normal (balanced), combination (oily T-zone, dry cheeks), sensitive (redness, reactivity). Skin type changes with season, age, hormones — reassess yearly. Most adults are combination — treat each zone differently.
Should I use morning and night moisturizer?
Yes — but they can be different formulas. Morning: lighter, with SPF (or layered under separate SPF). Night: thicker, with active ingredients (niacinamide, peptides, hyaluronic acid). Dry skin types may layer multiple moisturizers. Oily skin types can skip night moisturizer 1-2 nights per week to let skin self-regulate.
What causes acne in adults?
Hormones (perimenopause, periods, PCOS), stress (cortisol increases oil production), diet (high-glycemic foods + dairy in some people), skincare ingredients (coconut oil, isopropyl myristate clog pores), pillowcases not washed weekly. Most adult acne responds to: salicylic acid cleanser + retinoid + benzoyl peroxide spot treatment. Severe cases need dermatologist prescription (spironolactone, isotretinoin).