{"product_id":"cosrx-5pdrn-collagen-intense-vitalizing-serum-100ml","title":"COSRX - 5 PDRN Collagen Intense Vitalizing Serum 100ml","description":"\u003cp\u003eCOSRX 5 PDRN Collagen Intense Vitalizing Serum combines five types of PDRN with 200Da low molecular collagen — a lightweight all-in-one serum for skin that looks flat and tired.\u003c\/p\u003e\u003ch2\u003eFive PDRN sources in one formula\u003c\/h2\u003e\u003cp\u003eSalmon, centella asiatica, rice, lactobacillus and sea grape. Most PDRN products use one source; drawing from five broadens the ingredient story, and the plant and microbial versions reflect where the category is heading in 2026.\u003c\/p\u003e\u003ch2\u003e200Da collagen — what the number means\u003c\/h2\u003e\u003cp\u003eDaltons measure molecular weight, and 200Da is very low for collagen. Worth being honest about what topical collagen does: molecules are too large to travel into deeper skin layers regardless of size. What they do genuinely well is hold water at the surface, which makes skin look plumper and softens the appearance of fine dryness lines.\u003c\/p\u003e\u003ch2\u003eEight types of hyaluronic acid\u003c\/h2\u003e\u003cp\u003eDifferent molecular weights sit at different levels — larger molecules hold water at the surface, smaller ones distribute through the upper layers. A spread of eight covers both ends.\u003c\/p\u003e\u003ch2\u003eNiacinamide, panthenol and peptides\u003c\/h2\u003e\u003cp\u003eNiacinamide for evenness and dullness, panthenol for soothing, peptides for the look of firmness. It’s a genuinely full formula rather than one active with filler.\u003c\/p\u003e\u003ch2\u003eLightweight, layers cleanly\u003c\/h2\u003e\u003cp\u003eThe texture absorbs without tackiness, so it sits under moisturizer and sunscreen without disrupting anything else in your routine.\u003c\/p\u003e\u003ch2\u003eRealistic expectations\u003c\/h2\u003e\u003cp\u003eHydration and a plumper look show up quickly. Anything to do with fine lines takes months of consistent use — and daily sunscreen matters more for that than any serum does.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhat is PDRN?\u003c\/h3\u003e\u003cp\u003ePolydeoxyribonucleotide — originally from salmon DNA, now also produced from plant and microbial sources. One of the defining Korean skincare ingredients of 2026.\u003c\/p\u003e\u003ch3\u003eIs this vegan?\u003c\/h3\u003e\u003cp\u003eNo — one of the five PDRN sources is salmon, and the collagen is animal-derived.\u003c\/p\u003e\u003ch3\u003eWhere does it go in my routine?\u003c\/h3\u003e\u003cp\u003eAfter toner, before moisturizer. Pat into slightly damp skin, then seal with a cream.\u003c\/p\u003e\u003ch3\u003eCan I use it with retinol?\u003c\/h3\u003e\u003cp\u003eYes — a hydrating serum layered around retinol is a common way to keep skin comfortable. Introduce one new active at a time.\u003c\/p\u003e\u003ch3\u003eHow long does 100ml last?\u003c\/h3\u003e\u003cp\u003eSerums are used sparingly, so expect several months of twice-daily use. That’s a generous size for the category.\u003c\/p\u003e\u003ch2\u003ePairs well with\u003c\/h2\u003e\u003cp\u003ePrep with the \u003ca href=\"https:\/\/k-touch.us\/products\/cosrx-5-pdrn-b5-vital-soothing-toner-280ml\"\u003e5 PDRN B5 Toner\u003c\/a\u003e. Browse \u003ca href=\"https:\/\/k-touch.us\/collections\/pdrn\"\u003ePDRN\u003c\/a\u003e, \u003ca href=\"https:\/\/k-touch.us\/collections\/collagen\"\u003ecollagen\u003c\/a\u003e, \u003ca href=\"https:\/\/k-touch.us\/collections\/korean-serums\"\u003eKorean serums\u003c\/a\u003e and \u003ca href=\"https:\/\/k-touch.us\/collections\/anti-aging-firming\"\u003efirming\u003c\/a\u003e picks.\u003c\/p\u003e","brand":"COSRX","offers":[{"title":"Default Title","offer_id":48605496049886,"sku":"12600470504","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/9453\/6926\/files\/IMG-3863.png?v=1786886343","url":"https:\/\/k-touch.us\/es\/products\/cosrx-5pdrn-collagen-intense-vitalizing-serum-100ml","provider":"K-Touch","version":"1.0","type":"link"}