Optimum Nutrition 40g Protein Shake — 14 fl oz (414mL) × 12 Bottles

Optimum Nutrition is one of the most recognized US sports nutrition brands, headquartered in Illinois and a longtime fixture in gym supplement aisles. The 40g Protein Shake is their RTD line — premium-positioned with a higher protein dose than most competitors. Iron-tested, banned-substance-free formulation used by athletes.

• Drink chilled within an hour of waking for breakfast protein
• Have one within 30 minutes after a workout for muscle recovery
• Use as a meal replacement when you don't have time to cook
• Pack in your gym bag — stable at room temperature until opened
• Pour over ice with a splash of cold brew for a homemade protein iced coffee
• Shake well before opening for the smoothest texture

Korea's ready-to-drink protein shake market has grown rapidly in the last five years. Korean fitness consumers searching for high-protein options often look to US brands for higher protein doses (20–40g per bottle) and broader flavor selection than what Korean local brands typically offer. Optimum Nutrition is a recognized name in this category.

• No mixing, no shaker bottle, no clumps, no cleanup
• Consistent protein dose per bottle — no scooping inconsistency
• Factory-engineered flavor profile, smoother than DIY mixed
• Pro-formulated with ultra-filtered milk protein for better texture
• Travel-friendly: one bottle in your bag, no powder spills
• Shelf-stable until opened — unlike fresh milk shakes

Free shipping on every order, with no minimum. No handling fees, no customs processing charges, nothing added at checkout. What you see is what you pay.

Orders are dispatched within 1 to 2 business days. A tracking number is sent to your email once your parcel is on its way.

All orders are processed as personal-use overseas purchases and clear Korean customs without requiring KC certification. Your shipment is handled using your Personal Customs Clearance Code (PCCC) and is trackable via Korea Customs Service UNI-PASS. Orders under USD 200 from the United States qualify for duty-free clearance. In the event of any customs issue, we issue a full refund without question.

We purchase directly from US retailers and ship to customers in Korea — no intermediary, no repackaging, no grey-market sourcing. Every order is the same product you would find on a US shelf. We back every order with a full refund in the event of customs failure or non-delivery.

1. Select your variant
2. Add to cart and proceed to checkout
3. Enter your Personal Customs Clearance Code (PCCC) when prompted
4. Confirm your Korean delivery address
5. Complete payment — your order is placed
6. Receive your tracking number by email within 1 to 2 business days

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