{"product_id":"trstay-nicotinamide-dark-spot-brightening-face-serum","title":"TRSTAY Nicotinamide Dark Spot Brightening Serum | 5–50ml","description":"\n\u003cp\u003eReveal a visibly brighter, more even-looking complexion with the \u003cstrong\u003eTRSTAY Advanced Nicotinamide Face Serum\u003c\/strong\u003e. Powered by a concentrated nicotinamide (Vitamin B3) formula, this lightweight oil-based serum helps reduce the appearance of dark spots and discolouration while deeply moisturising the skin for a luminous, healthy-looking glow. Suitable for all skin types and genders, it's your go-to daily essential for a radiant complexion.\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\u003eBrightening Nicotinamide Complex:\u003c\/strong\u003e Visibly diminishes the look of dark spots, uneven skin tone, and dullness for a more luminous appearance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeep Moisturisation:\u003c\/strong\u003e Rich oil-based formulation locks in hydration, leaving skin feeling soft, supple, and nourished.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; Fast-Absorbing:\u003c\/strong\u003e Silky texture sinks in quickly without greasiness — ideal for use morning or night.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnisex Formula:\u003c\/strong\u003e Thoughtfully designed for all skin types and genders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Size Options:\u003c\/strong\u003e Available in 5ml, 15ml, 30ml, and 50ml — perfect for travel, gifting, or everyday use.\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\u003eKey Ingredient:\u003c\/strong\u003e Nicotinamide (Vitamin B3)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGender:\u003c\/strong\u003e Unisex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSizes Available:\u003c\/strong\u003e 5ml \/ 15ml \/ 30ml \/ 50ml\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in 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 gently pat your face dry.\u003c\/li\u003e\n  \u003cli\u003eApply 2–3 drops of serum to your fingertips.\u003c\/li\u003e\n  \u003cli\u003eMassage evenly onto the face and neck using upward circular motions.\u003c\/li\u003e\n  \u003cli\u003eFollow with your favourite moisturiser. Use daily for best results.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eExplore More Skincare Favourites\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/temporary-tattoo-markers-dual-end-10-colors-body-face-paint-pens\"\u003e10 Dual-End Temporary Tattoo Markers – Body \u0026amp; Face Paint Pens\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-5mm-mini-pocket-gel-pen-quick-dry-waterproof-10-refills\"\u003e0.5mm Mini Pocket Gel Pen – Quick Dry, Waterproof \u0026amp; 10 Refills\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTrusted Skincare Guidance\u003c\/h2\u003e\n\u003cp\u003eFor more information on the role of Vitamin B3 (Niacinamide\/Nicotinamide) in skin health and care, visit the \u003ca href=\"https:\/\/ods.od.nih.gov\/factsheets\/Niacin-Consumer\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIH Office of Dietary Supplements – Niacin Consumer Fact Sheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does the TRSTAY Nicotinamide Face Serum do for my skin?\u003c\/h4\u003e\n\u003cp\u003eA: The TRSTAY Nicotinamide Dark Spot Serum is formulated with nicotinamide (Vitamin B3) to help visibly reduce the appearance of dark spots and uneven skin tone. Its moisturising oil-based formula also helps keep skin hydrated and looking bright and healthy over time.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Which skin type is this nicotinamide serum suitable for?\u003c\/h4\u003e\n\u003cp\u003eA: This serum is designed as a unisex formula suitable for all skin types, including dry, oily, combination, and normal skin. The lightweight oil formulation absorbs easily without clogging pores.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What size options are available for this brightening serum?\u003c\/h4\u003e\n\u003cp\u003eA: The TRSTAY Advanced Nicotinamide Serum is available in four convenient sizes: 5ml, 15ml, 30ml, and 50ml — making it ideal for trying out, travelling, or committing to a full daily skincare routine.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How often should I use this dark spot face serum?\u003c\/h4\u003e\n\u003cp\u003eA: For best results, apply the serum daily — either in the morning before sunscreen and makeup, or at night as part of your evening skincare routine. Consistent daily use is key to seeing visible improvements in skin brightness and tone.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the TRSTAY Nicotinamide Face Serum do for my skin?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The TRSTAY Nicotinamide Dark Spot Serum is formulated with nicotinamide (Vitamin B3) to help visibly reduce the appearance of dark spots and uneven skin tone. Its moisturising oil-based formula also helps keep skin hydrated and looking bright and healthy over time.\"}}, {\"@type\": \"Question\", \"name\": \"Which skin type is this nicotinamide serum suitable for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This serum is designed as a unisex formula suitable for all skin types, including dry, oily, combination, and normal skin. The lightweight oil formulation absorbs easily without clogging pores.\"}}, {\"@type\": \"Question\", \"name\": \"What size options are available for this brightening serum?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The TRSTAY Advanced Nicotinamide Serum is available in four convenient sizes: 5ml, 15ml, 30ml, and 50ml — making it ideal for trying out, travelling, or committing to a full daily skincare routine.\"}}, {\"@type\": \"Question\", \"name\": \"How often should I use this dark spot face serum?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"For best results, apply the serum daily — either in the morning before sunscreen and makeup, or at night as part of your evening skincare routine. Consistent daily use is key to seeing visible improvements in skin brightness and tone.\"}}]}\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 Nicotinamide Dark Spot Brightening Serum | 5–50ml\", \"item\": \"https:\/\/oasis-select.com\/products\/trstay-nicotinamide-dark-spot-brightening-face-serum\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"15ML","offer_id":47742473142377,"sku":"14:173#15ML","price":7.18,"currency_code":"USD","in_stock":true},{"title":"5ML","offer_id":47742473175145,"sku":"14:366#5ML","price":5.43,"currency_code":"USD","in_stock":true},{"title":"50ML","offer_id":47742473207913,"sku":"14:175#50ML","price":10.66,"currency_code":"USD","in_stock":true},{"title":"30ML","offer_id":47742473240681,"sku":"14:29#30ML","price":8.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S58c0f2ba429b47fc8460397d7977b6b1D.webp?v=1783003832","url":"https:\/\/oasis-select.com\/products\/trstay-nicotinamide-dark-spot-brightening-face-serum","provider":"Oasis Select","version":"1.0","type":"link"}