The 4-product Acne + Oil-Control Combo

1. • Cleanser — COSRX Salicylic Acid Daily Gentle Cleanser
     Why: gentle salicylic (BHA) cleanser that helps dissolve sebum and unclog pores without over-stripping — good daily base to reduce blackheads and breakouts.

   • Leave-on exfoliant / toner — Anua BHA 2% Gentle Exfoliating Toner
     Why: 2% BHA (salicylic acid) leave-on toner for mild chemical exfoliation and pore clearing; includes soothing/ barrier-friendly ingredients (ceramides, centella) to lower irritation risk. A good follow-up after cleansing to keep pores clear. Anua US+1

   • Treatment serum — Medicube Red Succinic Acid Clarifying Serum (Niacinamide + Succinic Acid)
     Why: combines succinic acid (acne-targeting, anti-inflammatory/exfoliating) with niacinamide to reduce blemishes, calm inflammation, and help with post-acne marks — a targeted leave-on treatment to apply before moisturizer.

   • Weekly mask — Medicube Zero Pore Blackhead Mud Mask
     Why: quick clay mask with AHA/BHA/PHA + clays (bentonite/kaolin) to draw out impurities, absorb excess sebum and tighten pores — a weekly face mask to deep-clean and reset congested skin.

🧴 Why these 4 work well together (short version)

• Gentle daily exfoliation + deep weekly clearing: the COSRX cleanser + Anua 2% BHA give daily and leave-on BHA benefits, while the Medicube mud mask provides a weekly deep clean using multiple acids and clays for congestion.

• Multi-mechanism acne control: salicylic acid (oil-soluble BHA) penetrates pores and dissolves sebum; succinic acid + niacinamide soothe, reduce redness and post-acne pigmentation.

• Barrier support considered: Anua toner lists ceramides and centella to protect the barrier, lowering irritation risk from active acids.

✅ Practical routine (how to use the 4 products)

Morning

1. Rinse/cleanse with COSRX Salicylic Acid Gentle Cleanser (gently, ~30–60s), rinse.

2. Pat dry → Anua BHA 2% Toner (apply with cotton or hands; can be used daily). Allow to absorb.

3. Apply Medicube Red Succinic Acid Serum (few drops) to acne-prone areas. Allow to absorb.

4. Moisturizer + sunscreen (important — acids can increase sun sensitivity).

Evening

1. Double-cleanse if wearing sunscreen/makeup (oil cleanser optional) → COSRX cleanser second.

2. Anua BHA 2% Toner (evening application is fine).

3. Medicube Red Succinic Acid Serum (same as AM or nightly, depending on tolerance).

4. Moisturizer (barrier repair if skin feels dry).

Weekly

• 1× a week: use Medicube Zero Pore Blackhead Mud Mask for 3–10 minutes (follow product instructions). Don’t combine mask on the same night as an aggressive peel; keep it to once weekly at first.

⚠️ Precautions & tips

• Don’t over-exfoliate. Two products with BHA (cleanser + 2% toner) is okay for many, but if you notice dryness/irritation drop the toner to every other day. Salicylic acid can irritate if overused.

• Patch test any new product (especially Medicube succinic serum and mask).

• If using retinoids: introduce retinol slowly and avoid combining strong actives on the same night initially.

• Always use sunscreen daily when using acids/exfoliants.

• If you have very sensitive/eczema-prone skin, swap the BHA toner for a gentler non-acid toner or reduce frequency.