{"id":3839,"date":"2026-05-28T19:31:00","date_gmt":"2026-05-28T16:31:00","guid":{"rendered":"https:\/\/originalskinshop.com\/?post_type=product&#038;p=3839"},"modified":"2026-08-15T19:14:11","modified_gmt":"2026-08-15T16:14:11","slug":"eqqualberry-vitamin-illuminating-serum-30ml-niacinamide-stable-vitamin-c-for-dark-spots-acne-marks-uneven-tone","status":"publish","type":"product","link":"https:\/\/originalskinshop.com\/en\/product\/eqqualberry-vitamin-illuminating-serum-30ml-niacinamide-stable-vitamin-c-for-dark-spots-acne-marks-uneven-tone\/","title":{"rendered":"EQQUALBERRY Vitamin Illuminating Serum 30ml \u2014 Niacinamide + Stable Vitamin C for Dark Spots, Acne Marks &#038; Uneven Tone"},"content":{"rendered":"<p>If you&#8217;ve tried a dozen vitamin C serums and ended up with stinging cheeks and zero glow, this is the one that fixes the maths. EQQUALBERRY built the Yellow Vitamin Illuminating Serum around 3-O-Ethyl Ascorbic Acid \u2014 a stable form of Vitamin C that doesn&#8217;t oxidise into a useless orange liquid two weeks after opening \u2014 and stacked it with 4% niacinamide, 2% arbutin, glutathione, tranexamic acid, ferulic acid and 40% acerola water for a dark spot care complex that actually works on real GCC pigmentation.<\/p>\n<p>It&#8217;s for anyone tired of melasma, sun spots, post-acne marks, or the dull lifeless cast that comes from years of heat, hard water, and aggressive actives. Niacinamide calms inflammation that drives pigment in the first place. Arbutin and stable Vitamin C interrupt melanin production at two different points in the chain. Tranexamic acid and glutathione fade what&#8217;s already there. Ferulic acid stabilises everything and pushes the antioxidant capacity higher.<\/p>\n<p>Texture is a silky watery-gel. Two to three drops, morning and night, before moisturiser. Layers cleanly under SPF in the morning and under retinol or peptides at night. No fragrance, no essential oils, no alcohol drama \u2014 safe for sensitive and reactive skin.<\/p>\n<p>Expect to see surface dullness lift in 2\u20133 weeks. Visible fading of post-acne marks and sun spots in 6\u20138 weeks of consistent daily use. Pair with SPF every morning \u2014 Vitamin C without sunscreen is half a routine.<\/p>\n<p><em>Sourced direct from Boosters Co. Korea. 100% authentic, tracked from manufacturer to your door.<\/em><\/p>\n<h3>Key Ingredients<\/h3>\n<ul>\n<li><strong>4% Niacinamide<\/strong> \u2014 calms redness, evens tone, refines pores, regulates oil<\/li>\n<li><strong>2% Arbutin<\/strong> \u2014 plant-based skin lightener that blocks tyrosinase (the enzyme that makes pigment)<\/li>\n<li><strong>3-O-Ethyl Ascorbic Acid (stable Vitamin C)<\/strong> \u2014 antioxidant + brightener that doesn&#8217;t oxidise in the bottle<\/li>\n<li><strong>Tranexamic Acid<\/strong> \u2014 targets stubborn pigment such as melasma and post-acne marks<\/li>\n<li><strong>40% Acerola Water<\/strong> \u2014 natural Vitamin C and skin-priming base<\/li>\n<\/ul>\n<h3>How to Use<\/h3>\n<ol>\n<li>Cleanse and tone.<\/li>\n<li>Apply 2\u20133 drops to face and neck.<\/li>\n<li>Press gently with palms \u2014 don&#8217;t rub.<\/li>\n<li>Follow with moisturiser. AM: finish with SPF (mandatory).<\/li>\n<li>Use twice daily.<\/li>\n<\/ol>\n<h3>FAQ<\/h3>\n<p><strong>Q: Can I use this with retinol?<\/strong><br \/>Yes \u2014 niacinamide and Vitamin C pair perfectly with retinol. Apply this serum first, then retinol on top at night. New retinol users should start every other night.<\/p>\n<p><strong>Q: Is it safe during pregnancy?<\/strong><br \/>Yes \u2014 the formula is free of retinoids, hydroquinone, salicylic acid and high-dose actives. Always check with your doctor on any product during pregnancy.<\/p>\n<p><strong>Q: When will I see results?<\/strong><br \/>Surface dullness lifts in 2\u20133 weeks. Dark spots and post-acne marks fade with consistent twice-daily use over 6\u20138 weeks. Wearing SPF daily is the deal-breaker.<\/p>\n<p><strong>Q: Will it sting on sensitive skin?<\/strong><br \/>Most users tolerate it well \u2014 3-O-Ethyl Ascorbic Acid is far gentler than L-Ascorbic Acid. Patch test on the inner arm for 48 hours if you&#8217;re reactive.<\/p>\n<p><strong>Q: Can I layer it with my other EQQUALBERRY serums?<\/strong><br \/>Yes \u2014 apply thinnest texture first. Yellow then Blue is a great dark spot care + hydration combo for mornings.<\/p>\n<p><strong>Q: How do I know it&#8217;s authentic?<\/strong><br \/>Every bottle from OSS is sourced direct from Korea with batch traceability. The brand&#8217;s braille embossing on the carton is a counterfeit-resistant signature \u2014 check it.<\/p>\n<h3>Full Ingredients (INCI)<\/h3>\n<p><em>Malpighia Glabra (Acerola) Fruit Water, Water, Butylene Glycol, Glycerin, Cetyl Ethylhexanoate, Niacinamide, 1,2-Hexanediol, Arbutin, Hydrogenated Lecithin, Pentaerythrityl Tetrabehenate, Diethoxyethyl Succinate, Betaine, Ceramide NP, Hydroxyethyl Urea, Caprylic\/Capric Triglyceride, Melia Azadirachta Leaf Extract, Cetearyl Alcohol, Squalane, Melia Azadirachta Flower Extract, Panthenol, Curcuma Longa (Turmeric) Root Extract, Tocopherol, Carbomer, Butyrospermum Parkii Butter, Tromethamine, Xanthan Gum, Allantoin, Ethylhexylglycerin, 2,3-Butanediol, Ocimum Sanctum Leaf Extract, Disodium EDTA, Sodium Hyaluronate, Sodium Carboxymethyl Beta-Glucan, Corallina Officinalis Extract, 3-O-Ethyl Ascorbic Acid, Glutathione, Tranexamic Acid, Ferulic Acid.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A daily dark spot care serum stacked with 4% Niacinamide, 2% Arbutin, stable Vitamin C (3-O-Ethyl Ascorbic Acid), Tranexamic Acid and Glutathione \u2014 formulated to fade dark spots, acne marks and uneven tone without irritation.<\/p>\n","protected":false},"featured_media":3850,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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