{"product_id":"crest-3d-whitestrips-professional-effects-supreme-bright-dual-pack","title":"Crest 3D Whitestrips Professional Effects + Supreme Bright Bonus Brightening — Dual Pack Whitening Kit, 20 Professional Strips + 10 Brightening Strips (Hydrogen Peroxide, At-Home Treatment)","description":"\u003cstyle\u003e\n\/* Wonjo canonical stylesheet v3.0 — see wonjo-style-LOCKED.md for documentation *\/\n\n  \/* === WRAPPERS === *\/\n  .wonjo-wrap { font-family: 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif; color: #2b2b2b; font-size: 16px; line-height: 1.85; max-width: 720px; }\n  .wonjo-wrap-kr { font-family: 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif; color: #2b2b2b; font-size: 16px; line-height: 1.95; max-width: 720px; }\n\n  \/* === COMMON TEXT === *\/\n  .wonjo-wrap p, .wonjo-wrap-kr p { margin: 0 0 13px 0; color: #3a3a3a; }\n  .wonjo-wrap ul, .wonjo-wrap-kr ul { margin: 0 0 13px 0; padding-left: 18px; color: #3a3a3a; }\n  .wonjo-wrap ul li, .wonjo-wrap-kr ul li { margin-bottom: 7px; }\n\n  \/* === HEADINGS — H2 (old protein template) === *\/\n  .wonjo-wrap h2 { font-size: 16px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.2px; color: #4a7c59; margin: 36px 0 8px 0; }\n  .wonjo-wrap-kr h2 { font-size: 18px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.8px; color: #4a7c59; margin: 36px 0 8px 0; }\n\n  \/* === HR SEPARATOR (under h2 + inside details) === *\/\n  .wonjo-wrap hr, .wonjo-wrap-kr hr,\n  .wonjo-wrap details hr, .wonjo-wrap-kr details hr { border: none; border-top: 1.5px solid #4a7c59; margin: 0 0 18px 0; }\n\n  \/* === DETAILS \/ SUMMARY (rounds 1-4 + LEGO) === *\/\n  .wonjo-wrap details, .wonjo-wrap-kr details { margin: 0; border-bottom: 1px solid #e8e8e4; }\n  .wonjo-wrap details:last-of-type, .wonjo-wrap-kr details:last-of-type { border-bottom: none; }\n\n  .wonjo-wrap details summary { font-size: 16px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.2px; color: #4a7c59; padding: 20px 30px 20px 0; cursor: pointer; list-style: none; position: relative; }\n  .wonjo-wrap-kr details summary { font-size: 18px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.8px; color: #4a7c59; padding: 20px 30px 20px 0; cursor: pointer; list-style: none; position: relative; }\n\n  .wonjo-wrap details summary::-webkit-details-marker, .wonjo-wrap-kr details summary::-webkit-details-marker { display: none; }\n  .wonjo-wrap details summary::after, .wonjo-wrap-kr details summary::after { content: '+'; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 20px; font-weight: normal; color: #4a7c59; }\n  .wonjo-wrap details[open] summary::after, .wonjo-wrap-kr details[open] summary::after { content: '−'; }\n\n  \/* Content spacing — handles both direct-children variant AND \u003cdiv\u003e wrapper variant *\/\n  .wonjo-wrap details \u003e *:not(summary):not(hr), .wonjo-wrap-kr details \u003e *:not(summary):not(hr) { margin-bottom: 13px; }\n  .wonjo-wrap details \u003e *:last-child, .wonjo-wrap-kr details \u003e *:last-child { margin-bottom: 18px; }\n  .wonjo-wrap details \u003e div, .wonjo-wrap-kr details \u003e div { padding: 0 0 20px 0; }\n\n  \/* === SPEC GRID === *\/\n  .wonjo-wrap .spec-grid, .wonjo-wrap-kr .spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 0 0 16px 0; border: 1px solid #e8e8e4; border-radius: 4px; overflow: hidden; }\n  .wonjo-wrap .spec-item, .wonjo-wrap-kr .spec-item { padding: 10px 14px; border-bottom: 1px solid #e8e8e4; font-size: 14px; }\n  .wonjo-wrap .spec-item:nth-last-child(-n+2), .wonjo-wrap-kr .spec-item:nth-last-child(-n+2) { border-bottom: none; }\n  .wonjo-wrap .spec-label, .wonjo-wrap-kr .spec-label { font-size: 13px; text-transform: uppercase; letter-spacing: 0.8px; color: #4a7c59; display: block; margin-bottom: 2px; font-weight: bold; }\n  .wonjo-wrap .spec-value, .wonjo-wrap-kr .spec-value { color: #2b2b2b; }\n\n  \/* === TIPS \/ WARNINGS === *\/\n  .wonjo-wrap .tip, .wonjo-wrap-kr .tip { background: #f4f8f5; border-left: 3px solid #4a7c59; padding: 12px 16px; font-size: 13.5px; color: #4a5a4a; margin: 14px 0; font-style: italic; }\n  .wonjo-wrap .tip-warn, .wonjo-wrap-kr .tip-warn { background: #fdf6e3; border-left: 3px solid #b8860b; padding: 12px 16px; font-size: 13.5px; color: #6e5828; margin: 14px 0; font-style: italic; }\n\n  \/* === BADGES === *\/\n  .wonjo-wrap .badge-row, .wonjo-wrap-kr .badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 16px 0; }\n  .wonjo-wrap .badge, .wonjo-wrap-kr .badge { font-size: 11.5px; border: 1px solid #c2d8c9; background: #eef5f0; color: #3a6b48; border-radius: 3px; padding: 5px 11px; font-weight: bold; letter-spacing: 0.3px; }\n  .wonjo-wrap .badge-eco, .wonjo-wrap-kr .badge-eco { border-color: #b5cfa9; background: #e8f3e0; color: #2d5c1f; }\n  .wonjo-wrap .badge-safe, .wonjo-wrap-kr .badge-safe { border-color: #d4a574; background: #fdf3e3; color: #8a5a1a; }\n\n  \/* === SKILL TAG ROW (rounds 1-4 kids\/toys) === *\/\n  .wonjo-wrap .skill-row, .wonjo-wrap-kr .skill-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 18px 0; padding-bottom: 16px; border-bottom: 1px solid #e8e8e4; }\n  .wonjo-wrap .skill-tag, .wonjo-wrap-kr .skill-tag { font-size: 11px; background: #fdfcf8; border: 1px solid #e4e0d6; color: #6a5a3a; border-radius: 14px; padding: 4px 10px; letter-spacing: 0.2px; }\n\n  \/* === REVIEW CARDS (protein listings) === *\/\n  .wonjo-wrap .review-card, .wonjo-wrap-kr .review-card { background: #fdfcf8; border: 1px solid #e4e0d6; border-radius: 6px; padding: 18px 20px; margin-bottom: 14px; }\n  .wonjo-wrap .review-text, .wonjo-wrap-kr .review-text { color: #3a3a3a; margin: 0 0 10px 0; font-style: italic; }\n  .wonjo-wrap .review-name, .wonjo-wrap-kr .review-name { font-size: 12.5px; color: #888; font-style: normal; }\n\n  \/* === SET CARDS (LEGO bundle template) === *\/\n  .wonjo-wrap .set-card, .wonjo-wrap-kr .set-card { background: #fdfcf8; border: 1px solid #e4e0d6; border-radius: 6px; padding: 18px 22px; margin-bottom: 16px; }\n  .wonjo-wrap .set-card .set-no, .wonjo-wrap-kr .set-card .set-no { font-size: 13px; letter-spacing: 1px; color: #4a7c59; text-transform: uppercase; margin: 0 0 4px 0; font-weight: bold; }\n  .wonjo-wrap .set-card h3, .wonjo-wrap-kr .set-card h3 { font-size: 17px; margin: 0 0 10px 0; color: #2b2b2b; font-weight: 700; }\n  .wonjo-wrap .set-card p, .wonjo-wrap-kr .set-card p { margin: 0 0 8px 0; }\n  .wonjo-wrap .set-card .set-stats, .wonjo-wrap-kr .set-card .set-stats { font-size: 13.5px; color: #666; margin-top: 8px; }\n\n  \/* === PLAY STAGES (rounds 1-4 age-progression) === *\/\n  .wonjo-wrap .play-stage, .wonjo-wrap-kr .play-stage { padding: 10px 0; border-bottom: 1px dashed #e8e8e4; }\n  .wonjo-wrap .play-stage:last-child, .wonjo-wrap-kr .play-stage:last-child { border-bottom: none; }\n  .wonjo-wrap .play-stage-age, .wonjo-wrap-kr .play-stage-age { font-size: 13px; text-transform: uppercase; letter-spacing: 0.8px; color: #4a7c59; font-weight: bold; display: block; margin-bottom: 4px; }\n  .wonjo-wrap .play-stage-text, .wonjo-wrap-kr .play-stage-text { color: #3a3a3a; font-size: 14.5px; }\n\n  \/* === FAQ === *\/\n  .wonjo-wrap .faq-q, .wonjo-wrap-kr .faq-q { font-size: 13.5px; color: #4a7c59; font-weight: bold; margin: 14px 0 6px 0; }\n  .wonjo-wrap .faq-a, .wonjo-wrap-kr .faq-a { color: #3a3a3a; margin: 0 0 13px 0; padding-left: 14px; border-left: 2px solid #e8e8e4; }\n\n  \/* === STEPS (numbered ordering process) === *\/\n  .wonjo-wrap .steps, .wonjo-wrap-kr .steps { list-style: none; padding: 0; margin: 0 0 13px 0; }\n  .wonjo-wrap .steps { counter-reset: wonjo-steps; }\n  .wonjo-wrap-kr .steps { counter-reset: wonjo-steps-kr; }\n  .wonjo-wrap .steps li { counter-increment: wonjo-steps; padding: 10px 0 10px 38px; border-bottom: 1px solid #e8e8e4; position: relative; color: #3a3a3a; }\n  .wonjo-wrap-kr .steps li { counter-increment: wonjo-steps-kr; padding: 10px 0 10px 38px; border-bottom: 1px solid #e8e8e4; position: relative; color: #3a3a3a; }\n  .wonjo-wrap .steps li:last-child, .wonjo-wrap-kr .steps li:last-child { border-bottom: none; }\n  .wonjo-wrap .steps li::before { content: counter(wonjo-steps); position: absolute; left: 0; top: 11px; font-size: 11px; font-weight: bold; color: #4a7c59; width: 22px; height: 22px; border: 1.5px solid #4a7c59; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; }\n  .wonjo-wrap-kr .steps li::before { content: counter(wonjo-steps-kr); position: absolute; left: 0; top: 11px; font-size: 11px; font-weight: bold; color: #4a7c59; width: 22px; height: 22px; border: 1.5px solid #4a7c59; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; }\n\n  \/* === INTRO SUBTITLE === *\/\n  .wonjo-wrap .intro-subtitle, .wonjo-wrap-kr .intro-subtitle { font-size: 17px; line-height: 1.6; color: #4a7c59; font-style: italic; margin: 0 0 18px 0; padding-bottom: 18px; border-bottom: 1px solid #e8e8e4; }\n\n  \/* === SECTION SUBTITLE === *\/\n  .wonjo-wrap .section-subtitle, .wonjo-wrap-kr .section-subtitle { font-size: 13px; color: #777; font-style: italic; margin: -2px 0 16px 0; }\n\n  \/* === KEYWORDS (related searches at bottom) === *\/\n  .wonjo-wrap .keywords, .wonjo-wrap-kr .keywords { font-size: 13px; color: #777; line-height: 1.7; letter-spacing: 0.2px; }\n\n  \/* === MOBILE MEDIA QUERY === *\/\n  @media (max-width: 600px) {\n    .wonjo-wrap details summary, .wonjo-wrap-kr details summary { padding: 18px 30px 18px 0 !important; }\n    .wonjo-wrap details summary, .wonjo-wrap h2 { font-size: 15px !important; letter-spacing: 1px !important; }\n    .wonjo-wrap-kr details summary, .wonjo-wrap-kr h2 { font-size: 18px !important; letter-spacing: 0.8px !important; }\n    .wonjo-wrap, .wonjo-wrap-kr { font-size: 16px !important; }\n    .wonjo-wrap .intro-subtitle, .wonjo-wrap-kr .intro-subtitle { font-size: 17px !important; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"wonjo-wrap\"\u003e\n\n  \u003cp class=\"intro-subtitle\"\u003eCrest's professional-grade at-home whitening strips — Hydrogen Peroxide adhesive strips that apply directly to teeth for 30-60 minutes per session. This dual-pack combines 20 Professional Effects strips (10-day intensive treatment) with 10 Supreme Bright strips (5-day touch-up program). The most-imported US whitening product among Korean shoppers.\u003c\/p\u003e\n\n  \u003cdetails open\u003e\n    \u003csummary\u003eAbout This Product\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003cp\u003eWhitestrips work fundamentally differently from whitening toothpastes. Each strip is a thin, flexible piece coated with a Hydrogen Peroxide gel — you apply one strip to your upper teeth and one to your lower teeth, leave them on for 30-60 minutes depending on the variant, then remove. The peroxide oxidizes stain molecules INSIDE the tooth, not just on the surface. Results are significantly more pronounced than any whitening toothpaste.\u003c\/p\u003e\n\u003cp\u003eThis dual pack provides a complete cycle: the 20 Professional Effects strips (10 days × 2 strips\/day) deliver the main whitening treatment, and the 10 Supreme Bright strips (5 touch-up sessions) maintain results 2-3 weeks after the main cycle. Korean retail price for similar Crest Whitestrips products is significantly higher — direct import provides real cost savings. Single most-requested US oral care import on Korean parenting and beauty forums.\u003c\/p\u003e\n      \u003cdiv class=\"badge-row\"\u003e\n        \u003cspan class=\"badge\"\u003eDirect from US\u003c\/span\u003e\n        \u003cspan class=\"badge\"\u003eFree Shipping\u003c\/span\u003e\n        \u003cspan class=\"badge\"\u003ePersonal Import\u003c\/span\u003e\n      \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eProduct Details\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003cdiv class=\"spec-grid\"\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eBrand\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003eCrest (P\u0026amp;G)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eProduct Type\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003eTeeth Whitening Strips (Hydrogen Peroxide Treatment)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eContents\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003e20 Professional Effects strips + 10 Supreme Bright strips (30 strips total)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eTreatment Length\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003e10 days main treatment + 5 days touch-up\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003ePer Session\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003e30-60 minutes (varies by strip type)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eFormat\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003eFlexible adhesive strips with Hydrogen Peroxide gel coating\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eAge Range\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003eAdults only — NOT for use under age 18\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eCountry of Origin\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003eUSA\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tip\"\u003eApply strips after brushing but with dry teeth (gently pat your front teeth with a paper towel to remove saliva). The strips adhere better to dry enamel. Avoid eating or drinking anything except water during the 30-60 minute session. For best photos-ready results, time your main 10-day cycle to finish 2-3 days before the event you're whitening for.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eHow to Use\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003col class=\"steps\"\u003e\n\u003cli\u003eBrush teeth gently before applying (do not floss right before — wait at least 30 minutes after flossing).\u003c\/li\u003e\n\u003cli\u003ePat front teeth dry with a paper towel.\u003c\/li\u003e\n\u003cli\u003ePeel one strip from backing; apply the longer strip to upper teeth, shorter strip to lower teeth.\u003c\/li\u003e\n\u003cli\u003ePress strips firmly against teeth so they stay in place. Fold any excess strip behind teeth.\u003c\/li\u003e\n\u003cli\u003eLeave on for 30-60 minutes (check specific timing on the product packaging for each strip type).\u003c\/li\u003e\n\u003cli\u003eRemove strips, discard, and rinse mouth thoroughly. Do NOT brush teeth for 30 minutes after.\u003c\/li\u003e\n\u003cli\u003eUse 2 strips per day (1 upper, 1 lower) for the prescribed treatment length.\u003c\/li\u003e\n\u003cli\u003eDo NOT use more than recommended; do NOT use if you have dental work that includes crowns or veneers on front teeth (whitening will not work on these).\u003c\/li\u003e\n\u003c\/ol\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eActive Ingredients\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003cdiv class=\"spec-grid\"\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eActive Ingredient\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003eHydrogen Peroxide (concentration varies by strip type — Professional Effects ~10%, Supreme Bright ~5.25%)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003ePurpose\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003eTeeth whitening (oxidative bleaching of intrinsic and extrinsic stains)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eInactive Ingredients\u003c\/span\u003e\u003cspan class=\"spec-value\"\u003eWater, Glycerin, Hydrogen Peroxide, PVP, Acrylate Copolymer, Sodium Hydroxide, Sodium Saccharin, Pyrophosphate\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy Korean Customers Reach For This\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003cp\u003eCrest 3D Whitestrips are the gold standard for at-home teeth whitening in the US. Korean dental whitening procedures cost ~₩300,000-₩600,000 per session at clinics, with multiple sessions often needed. Whitestrips deliver comparable results at home for under ₩150,000 total — a massive cost savings that's driven significant import demand.\u003c\/p\u003e\n\u003cp\u003eKorean shoppers also import Whitestrips because they're rarely sold through Korean retail (regulatory restrictions on consumer-grade Hydrogen Peroxide products limit local distribution). This dual-pack format isn't available in Korean retail at all — direct import is the only access path.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eShipping\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003cp\u003e\u003cstrong\u003eFree shipping to Korea — included in the listed price.\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eShipped from the United States in plain, unmarked packaging. The shipping label does not reference the product contents.\u003c\/p\u003e\n      \u003cp\u003eOrders dispatched within 1-2 business days. Tracking number sent to your email once your parcel is on its way.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eCustoms \u0026amp; Import\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003cp\u003eAll 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.\u003c\/p\u003e\n      \u003cdiv class=\"tip\"\u003eIf you do not yet have a Personal Customs Clearance Code (PCCC), you can get one free in under five minutes at unipass.customs.go.kr.\u003c\/div\u003e\n      \u003cdiv class=\"tip-warn\"\u003eADULTS ONLY — NOT FOR USE UNDER AGE 18. DO NOT USE during pregnancy or breastfeeding. DO NOT use if you have dental conditions (active cavities, gum disease, sensitive teeth) without dentist consultation first. May cause temporary tooth sensitivity or gum irritation — this typically resolves within 24-48 hours of stopping treatment. Whitening will NOT work on crowns, veneers, fillings, or other dental work — only on natural tooth enamel. Do NOT exceed the recommended treatment schedule. Discontinue if sensitivity persists or worsens. Store in a cool, dry place away from heat. Keep out of reach of children — this product contains Hydrogen Peroxide which is harmful if swallowed.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy This Shop\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003cp\u003eWe source directly from US retail and ship to Korea — no middlemen, no re-bottling, no extended storage in Asia warehouses. Every product is a fresh US production lot, sealed in original retail packaging.\u003c\/p\u003e\n      \u003cp\u003eFree shipping is built into the listed price — what you see is what you pay.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eFrom Our First Customers\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003e\n\u003cspan class=\"review-name\"\u003ePark S.\u003c\/span\u003e \u003cspan class=\"review-source\"\u003eNaver Verified Buyer\u003c\/span\u003e \u003cspan class=\"review-stars\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-text\"\u003eSaved thousands by using Whitestrips instead of dental whitening. The 10-day cycle visibly worked. Used the Supreme Bright bonus strips 2 weeks later for touch-up. Teeth genuinely 3-4 shades whiter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003e\n\u003cspan class=\"review-name\"\u003eLee K.\u003c\/span\u003e \u003cspan class=\"review-source\"\u003eCoupang Customer\u003c\/span\u003e \u003cspan class=\"review-stars\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-text\"\u003eBest US oral care import. Korean retail doesn't have anything comparable at this price point. Recommend buying the dual pack — having touch-ups available makes a real difference.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003e\n\u003cspan class=\"review-name\"\u003eKim H.\u003c\/span\u003e \u003cspan class=\"review-source\"\u003eNaver Verified Buyer\u003c\/span\u003e \u003cspan class=\"review-stars\"\u003e★★★★☆\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-text\"\u003eSome sensitivity during days 5-8 of the main cycle. I skipped a day and resumed — got through the cycle fine. Results are real but the sensitivity is a known side effect. Use sensitivity toothpaste before and after.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eHow to Order\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003col class=\"steps\"\u003e\n\u003cli\u003eSelect the product\u003c\/li\u003e\n\u003cli\u003eAdd to cart and proceed to checkout\u003c\/li\u003e\n\u003cli\u003eEnter your Personal Customs Clearance Code (PCCC)\u003c\/li\u003e\n\u003cli\u003eConfirm your Korean delivery address\u003c\/li\u003e\n\u003cli\u003eComplete payment — your order is placed\u003c\/li\u003e\n\u003cli\u003eReceive your tracking number by email within 1-2 business days\u003c\/li\u003e\n\u003c\/ol\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eRelated Searches\u003c\/summary\u003e\n    \u003chr\u003e\n      \u003cp class=\"keywords\"\u003eCrest 3D Whitestrips Korea · Crest Professional Effects · whitening strips direct import · at-home teeth whitening · Hydrogen Peroxide strips · 미국 화이트스트립스\u003c\/p\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Crest","offers":[{"title":"Default Title","offer_id":45421989199919,"sku":"CREST-3d-whitestrips-professional-bonus-brightening","price":103000.0,"currency_code":"KRW","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/5190\/3791\/files\/crest-3d-whitestrips-professioonal-effects-supreme-bright-bonus-brightening-dual-pack-set-1.png?v=1780949848","url":"https:\/\/wonjo.com\/en\/products\/crest-3d-whitestrips-professional-effects-supreme-bright-dual-pack","provider":"원조 - WONJO","version":"1.0","type":"link"}