{"product_id":"isntree-ultra-low-molecular-hyaluronic-acid-serum-50ml-mirai-skin-isntree-ultra-low-molecular-hyaluronic-acid-serum-50ml","title":"Isntree Ultra-Low Molecular Hyaluronic Acid Serum 50ml","description":"\u003ch2\u003eIsntree Ultra-Low Molecular Hyaluronic Acid Serum: Deep Hydration via Low-MW HA\u003c\/h2\u003e\n\u003cp\u003eIsntree's Ultra-Low Molecular Hyaluronic Acid Serum is the serum counterpart to their popular HA Toner, with a focus on the smallest-weight HA molecules for deep-layer hydration. At $24.08 for 50ml, this is one of the best-priced dedicated HA serums in the Korean market, undercutting Torriden Dive-In and other direct competitors.\u003c\/p\u003e\n\u003cp\u003eLow-molecular-weight hyaluronic acid is a key Korean skincare preference: smaller HA molecules penetrate deeper into the stratum corneum (though not the dermis, as sometimes claimed) and provide more sustained hydration than surface-only HA. The \"Ultra-Low Molecular\" framing emphasizes that this serum is weighted toward smaller molecules, for maximum depth of hydration.\u003c\/p\u003e\n\u003ch3\u003eWhat It Does\u003c\/h3\u003e\n\u003cp\u003eLow-molecular-weight hyaluronic acid (typically under 50 kDa, versus 1000+ kDa for surface HA) penetrates the upper skin layers more effectively. Once there, it binds water and creates sustained hydration from within. Supporting humectants and panthenol add barrier benefits. Over weeks of use, skin shows improved plumpness and reduced fine-line appearance from chronic dehydration.\u003c\/p\u003e\n\u003ch3\u003eWho It's For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDehydrated skin of all types:\u003c\/strong\u003e Primary use case.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoutines using drying actives:\u003c\/strong\u003e Counteracts retinol or acid dehydration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBudget-conscious HA enthusiasts:\u003c\/strong\u003e Best price for the category.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitive skin:\u003c\/strong\u003e HA is universally well-tolerated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLayering with HA toner:\u003c\/strong\u003e Builds deeper hydration than toner alone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Specs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVolume: 50ml\u003c\/li\u003e\n\u003cli\u003ePrice: $24.08\u003c\/li\u003e\n\u003cli\u003eHero active: ultra-low molecular weight hyaluronic acid\u003c\/li\u003e\n\u003cli\u003eSupports: panthenol, sodium hyaluronate crosspolymer\u003c\/li\u003e\n\u003cli\u003eTexture: watery serum, slightly gel-like\u003c\/li\u003e\n\u003cli\u003eFragrance: unscented\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003eAfter toner, apply 3 to 4 drops to slightly damp skin. Pat in to aid absorption. Follow with cream. Use AM and PM. For extra hydration, layer 2 applications with 30 seconds between.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003ch4\u003eIs low-MW HA actually better than regular HA?\u003c\/h4\u003e\n\u003cp\u003eDifferent mechanism. Low-MW HA penetrates deeper and provides more sustained hydration. Regular (high-MW) HA provides surface plumping. Best approach: use both. Low-MW serum for depth, higher-MW in a toner or moisturizer for surface.\u003c\/p\u003e\n\u003ch4\u003eHow does this compare to Torriden Dive-In?\u003c\/h4\u003e\n\u003cp\u003eBoth are quality low-MW HA serums at similar price points. Torriden has stronger brand marketing; Isntree has a larger HA-focused product family. Both work; choose on preference.\u003c\/p\u003e\n\u003ch4\u003eCan I use it with retinol?\u003c\/h4\u003e\n\u003cp\u003eYes, and it's recommended. Apply retinol first at night, let absorb, then this serum as a hydration buffer before cream.\u003c\/p\u003e\n\u003ch4\u003eDoes it pill under other products?\u003c\/h4\u003e\n\u003cp\u003eMinimal. The texture is designed for layering under additional serums or moisturizers without pilling.\u003c\/p\u003e\n\u003ch4\u003eHow long does 50ml last?\u003c\/h4\u003e\n\u003cp\u003eTwice-daily use: approximately 2 months.\u003c\/p\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cp\u003ePair with Isntree HA Toner Plus for full hydration routine. Browse the Isntree collection or Korean serums.\u003c\/p\u003e\n","brand":"mirai-skin","offers":[{"title":"Default Title","offer_id":51741074948384,"sku":"52944030859636","price":11.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/8333\/4432\/files\/e2fafe3048eb29b994bb4ee732042a70.webp?v=1779694467","url":"https:\/\/usmirai-skin.com\/products\/isntree-ultra-low-molecular-hyaluronic-acid-serum-50ml-mirai-skin-isntree-ultra-low-molecular-hyaluronic-acid-serum-50ml","provider":"usmirai-skin.com","version":"1.0","type":"link"}