Crest Pro-Health Nightly Bacteria Shield Mouthwash — Soothing Mint, Alcohol-Free, Overnight Antibacterial Protection (1 L / 33.8 fl oz)

Overnight bacterial activity is the dental hygiene blind spot — saliva production drops by 80% during sleep, removing the body's natural antibacterial defense. The result is morning breath, plaque buildup overnight, and increased gingivitis risk. Crest Pro-Health Nightly addresses this with the same CPC technology as the daytime variant but with a longer-acting compound base designed to keep antibacterial effect through the night.

1L bottle in "Soothing Mint" — a gentler, almost cooling flavor designed for bedtime use without the stimulation of stronger mints that could disrupt sleep. At normal use (10-20mL, 1× nightly), the bottle lasts ~10 weeks (longer than the daytime variant since it's once-daily). Many Korean shoppers use this nightly while keeping a daytime mouthwash separate.

1. Brush teeth as normal before bed.
2. Pour 10-20 mL into the cap.
3. Swish vigorously around all areas of the mouth for 30 seconds.
4. Spit out the mouthwash. Do NOT swallow.
5. Go directly to bed — do not eat, drink, or rinse for the rest of the night.
6. Use once nightly only. Pair with a different mouthwash for daytime use if desired.

Overnight-focused mouthwash is a category that barely exists in Korean retail — most Korean options assume single mouthwash for all-day use. The concept of separating daytime (clean breath) from nighttime (bacterial shield) is newer to the Korean market and resonates with Korean shoppers who research dental science.

Korean shoppers who experience persistent morning breath despite good oral hygiene often discover this product through dental science blogs and forums. The overnight saliva-drop science is well-documented but not widely marketed in Korean retail.

Free shipping to Korea — included in the listed price.

Shipped from the United States in secure protective packaging.

Orders dispatched within 1-2 business days. Tracking number 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.

We source directly from US retail and ship to Korea — no middlemen, no re-bottling, no extended storage in Asia warehouses. Every bottle is a fresh US production lot, sealed in original retail packaging.

Free shipping is built into the listed price — what you see is what you pay.

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