{"product_id":"trstay-collagen-face-serum-moisturizing-firming-oil","title":"TRSTAY Collagen Face Serum – Firming \u0026 Moisturizing Oil","description":"\n\u003cp\u003eRevive your complexion with the \u003cstrong\u003eTRSTAY Collagen Boosting Face Serum\u003c\/strong\u003e — a lightweight, oil-formulated serum designed to visibly smooth the look of fine lines, deeply hydrate, and help skin appear firmer, plumper, and more radiant with consistent use. Available in 5ml, 15ml, 30ml, and 50ml sizes to suit your skincare routine and budget.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eThese statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollagen-Supporting Formula:\u003c\/strong\u003e Helps encourage a visibly firmer, more supple skin appearance over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntensive Moisturization:\u003c\/strong\u003e Oil-based formulation delivers deep hydration to dry, dull, or dehydrated skin.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmoothing Effect:\u003c\/strong\u003e Works to soften the appearance of fine lines and promote a more even skin texture.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSkin-Tightening Feel:\u003c\/strong\u003e Leaves skin feeling toned, lifted, and velvety-smooth after each application.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnisex Formula:\u003c\/strong\u003e Suitable for all skin types and genders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Formulated without listed high-concern chemical ingredients.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e TRSTAY\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Face Serum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFormulation:\u003c\/strong\u003e Oil\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature:\u003c\/strong\u003e Moisturizing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGender:\u003c\/strong\u003e Unisex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e One Unit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e 5ml \/ 15ml \/ 30ml \/ 50ml\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eCleanse and tone your face thoroughly.\u003c\/li\u003e\n  \u003cli\u003eApply a few drops of the serum to your fingertips.\u003c\/li\u003e\n  \u003cli\u003eGently press and smooth onto face and neck using upward motions.\u003c\/li\u003e\n  \u003cli\u003eAllow the serum to absorb fully before applying moisturizer or SPF.\u003c\/li\u003e\n  \u003cli\u003eUse morning and\/or evening for best results.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eExplore More Skincare Essentials\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ampoule-head-shock-absorbing-cap-adapter-03ml-05ml-hyaluronic-pen\"\u003e0.3ml \u0026amp; 0.5ml Ampoule Head Cap Adapter for Hyaluronic Pen\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-3ml-0-5ml-ampoule-head-cartridge-hyaluron-pen-skin-care\"\u003e0.3ml \u0026amp; 0.5ml Hyaluron Pen Ampoule Head Cartridge | Skin Care\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eExpert Reference\u003c\/h2\u003e\n\u003cp\u003eLearn more about how skincare ingredients and topical products are regulated and assessed for safety at the \u003ca href=\"https:\/\/www.fda.gov\/cosmetics\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. Food \u0026amp; Drug Administration – Cosmetics\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: What skin types is the TRSTAY Collagen Face Serum suitable for?\u003c\/h4\u003e\n\u003cp\u003eA: This face serum is designed as a unisex, all-skin-type formula. Whether you have dry, combination, or normal skin, the moisturizing oil-based formulation is crafted to deliver hydration and a firmer-looking complexion for a wide range of users.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How often should I apply the collagen-boosting serum?\u003c\/h4\u003e\n\u003cp\u003eA: For optimal results, apply the serum once or twice daily — in the morning and\/or evening — after cleansing and before your moisturizer. Consistent daily use is key to seeing a visible improvement in skin texture and suppleness over time.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Which size should I choose — 5ml, 15ml, 30ml, or 50ml?\u003c\/h4\u003e\n\u003cp\u003eA: The 5ml size is perfect for travel or trying the product for the first time. The 15ml and 30ml sizes are ideal for regular daily use, while the 50ml bottle offers the best value for those who have made this serum a staple in their skincare routine.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this serum be used under makeup?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! Allow the serum to fully absorb into your skin (approximately 1–2 minutes) before applying sunscreen, moisturizer, or makeup. The lightweight formula is designed to layer well under other skincare and beauty products.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What skin types is the TRSTAY Collagen Face Serum suitable for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This face serum is designed as a unisex, all-skin-type formula. 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The lightweight formula is designed to layer well under other skincare and beauty products.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Face Serums\", \"item\": \"https:\/\/oasis-select.com\/collections\/face-serums\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"TRSTAY Collagen Face Serum – Firming \u0026 Moisturizing Oil\", \"item\": \"https:\/\/oasis-select.com\/products\/trstay-collagen-face-serum-moisturizing-firming-oil\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"50ML","offer_id":47742545264745,"sku":"14:193#50ML","price":10.4,"currency_code":"USD","in_stock":true},{"title":"5ML","offer_id":47742545297513,"sku":"14:366#5ML","price":10.37,"currency_code":"USD","in_stock":true},{"title":"15ML","offer_id":47742545330281,"sku":"14:173#15ML","price":10.37,"currency_code":"USD","in_stock":true},{"title":"30ML","offer_id":47742545363049,"sku":"14:29#30ML","price":9.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Sc3b15da2a7c04321b4731e6762d5caeat.webp?v=1783005483","url":"https:\/\/oasis-select.com\/products\/trstay-collagen-face-serum-moisturizing-firming-oil","provider":"Oasis Select","version":"1.0","type":"link"}