{"title":"Niacinamide Skincare — Vitamin B3 Serums and Formulas for Sensitive, Oily, and Acne-Prone Skin","description":"\u003ch2\u003eWhat Niacinamide Does — and Why Concentration Matters\u003c\/h2\u003e\n\u003cp\u003eNiacinamide is the amide form of vitamin B3 and a precursor of NAD⁺ — nicotinamide adenine dinucleotide — an essential coenzyme involved in cellular energy production and DNA repair. In skin, NAD⁺ levels decline with age, which contributes to slower cell repair, weakened barrier function, and increased visible aging. Topical niacinamide helps replenish this pathway.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAt the skin surface, niacinamide works through multiple simultaneous mechanisms. It stimulates ceramide synthesis, which directly strengthens the lipid barrier and reduces transepidermal water loss. It inhibits the transfer of melanosomes from melanocytes to keratinocytes, which is the mechanism responsible for its visible brightening and hyperpigmentation-reducing effect. It regulates sebaceous gland activity, reducing excess sebum without stripping. And it exerts measurable anti-inflammatory activity, making it particularly effective for acne-prone, rosacea-adjacent, and reactive skin that does not tolerate more aggressive actives.\u003c\/p\u003e\n\u003ch3\u003e5% vs 10% — which concentration is right\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e5% niacinamide\u003c\/strong\u003e is the concentration at which brightening, barrier support, and redness reduction are clinically documented. It is appropriate for daily use across all skin types, including the most sensitive, and is the concentration used in several By Valenti formulas paired with complementary actives.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10% niacinamide\u003c\/strong\u003e delivers stronger sebum regulation, more visible pore refinement, and faster results on uneven tone and post-acne marks. The Aqua b3 serum is formulated at 10% in a minimalist base — no zinc, no alcohol, no fillers — making it one of the few 10% niacinamide formulas suitable for sensitive skin without the irritation risk associated with high-concentration zinc combinations.\u003c\/p\u003e\n\u003ch2\u003eBy Valenti Niacinamide Formulas\u003c\/h2\u003e\n\u003ch3\u003eAqua b3 — 10% Niacinamide Serum\u003c\/h3\u003e\n\u003cp\u003eA lightweight, crystal-clear water-based serum delivering 10% niacinamide alongside sea kelp bioferment and humectants. Formulated without zinc, fragrance, alcohol, or essential oils. Suitable for all skin types including sensitive, teenage, and acne-prone skin. Targets enlarged pores, redness, uneven texture, and excess sebum. Fast-absorbing. Daily AM and PM use.\u003c\/p\u003e\n\u003ch3\u003eBarcola Azzurro Mare Replenishing Elixir — 5% Niacinamide + Hyaluronic Acid Serum\u003c\/h3\u003e\n\u003cp\u003eAn award-winning oil-free serum combining 5% niacinamide with low and high molecular weight hyaluronic acid and sea kelp bioferment. Targets barrier repair, multi-depth hydration, and skin texture simultaneously. Designed for sensitive skin. Fragrance-free. Contains no essential oils — suitable for use during pregnancy and breastfeeding.\u003c\/p\u003e\n\u003ch3\u003eAzzurrino Bi-Phase Brightening Serum — Niacinamide + Vitamin C\u003c\/h3\u003e\n\u003cp\u003eA bi-phase serum combining niacinamide and vitamin C to target uneven skin tone, post-acne marks, and dullness alongside hyaluronic acid and olive squalane for hydration and barrier support. Results visible in 1–3 weeks with twice-daily use.\u003c\/p\u003e\n\u003ch3\u003eRoses \u0026amp; Hibiscus Toner — 5% Niacinamide\u003c\/h3\u003e\n\u003cp\u003eA lightweight toner-serum hybrid with in-house formulated hibiscus and rose extracts, 5% niacinamide, and provitamin B5. Refreshes, hydrates, and prepares skin for active absorption. Suitable for all skin types. Can be used as a toner or throughout the day as a facial mist.\u003c\/p\u003e\n\u003ch3\u003eRoses \u0026amp; Hibiscus Serum — 5% Niacinamide + Hyaluronic Acid\u003c\/h3\u003e\n\u003cp\u003eA hydrating toner-serum hybrid combining niacinamide, hyaluronic acid, and botanical extracts to address redness, dehydration, and uneven tone in a single application. Lightweight formula suitable for sensitive and dry skin.\u003c\/p\u003e\n\u003ch2\u003eWho Niacinamide Skincare Is For\u003c\/h2\u003e\n\u003cp\u003eNiacinamide is one of the few high-performance actives with no meaningful exclusion criteria by skin type. It is documented to benefit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOily and combination skin\u003c\/strong\u003e — regulates sebum, reduces shine, minimizes pore appearance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcne-prone skin\u003c\/strong\u003e — anti-inflammatory, reduces post-acne marks, does not promote purging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitive and reactive skin\u003c\/strong\u003e — strengthens barrier, reduces redness, well-tolerated at both 5% and 10%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry and dehydrated skin\u003c\/strong\u003e — stimulates ceramide production, supports moisture retention\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAging and mature skin\u003c\/strong\u003e — reduces fine lines, improves elasticity, addresses hyperpigmentation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHyperpigmented skin\u003c\/strong\u003e — inhibits melanin transfer, visibly brightens uneven tone over consistent use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use Niacinamide in Your Routine\u003c\/h2\u003e\n\u003cp\u003eNiacinamide is compatible with most other active ingredients including hyaluronic acid, vitamin C, bakuchiol, AHAs, BHAs, and peptides. It does not require isolation from other actives and can be used morning and evening.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eLayering order\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eApply niacinamide after cleansing and toning, before heavier serums, oils, or moisturizers. In a multi-serum routine, apply water-based formulas before oil-based ones.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eWith vitamin C\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eNiacinamide and vitamin C are compatible when used in stable, well-formulated products. The concern about niacin flush from combining them is based on outdated research involving unstable forms of vitamin C and niacin rather than niacinamide. Modern stable vitamin C formulations do not produce this reaction.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eCan niacinamide be used every day?\u003c\/h3\u003e\n\u003cp\u003eYes. Niacinamide does not cause photosensitivity, purging, or an adjustment period. It is one of the safest daily-use actives at both 5% and 10% concentrations.\u003c\/p\u003e","products":[{"product_id":"roses-facial-toner","title":"Tonico Viso a Rosa e Ibisco con Niacinamide per Pelle Secca","description":"\u003cp data-start=\"2499\" data-end=\"2581\"\u003eTonico viso multiuso formulato per idratare, riequilibrare e rinfrescare la pelle.\u003c\/p\u003e\n\u003cp data-start=\"2583\" data-end=\"2848\"\u003eGli estratti di rosa e ibisco aiutano a tonificare e lenire, mentre la niacinamide supporta un miglioramento della texture e una chiarezza visibile. La formula leggera può essere utilizzata come tonico o come mist viso per ravvivare l’incarnato durante la giornata.\u003c\/p\u003e\n\u003cp data-start=\"2850\" data-end=\"2881\"\u003eAdatto a tutti i tipi di pelle.\u003c\/p\u003e","brand":"by valenti","offers":[{"title":"100 ml","offer_id":47585961115898,"sku":"FT0004","price":39.0,"currency_code":"USD","in_stock":true},{"title":"50 ml ricarica","offer_id":47585961148666,"sku":"FT0004-r","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/2227\/0458\/files\/byvalenti-roses-and-hibiscus-toner.webp?v=1767070577"},{"product_id":"roses-hibiscus-serum","title":"Siero Leggero Super Idratante a Rosa e Ibisco","description":"\u003cp data-start=\"4078\" data-end=\"4165\"\u003eTrattamento viso multiuso formulato per idratare, riequilibrare e rinfrescare la pelle.\u003c\/p\u003e\n\u003cp data-start=\"4167\" data-end=\"4490\"\u003eL’idrolato di rosa e l’ibisco aiutano a lenire e tonificare. L’acido ialuronico supporta un’idratazione prolungata. La niacinamide aiuta ad affinare la texture cutanea e a ridurre i rossori visibili, mentre la vitamina B5 e l’acido salicilico favoriscono la chiarezza della pelle e il rinnovamento della superficie cutanea.\u003c\/p\u003e\n\u003cp data-start=\"4492\" data-end=\"4540\"\u003eFormula leggera. Adatto a tutti i tipi di pelle.\u003c\/p\u003e","brand":"by valenti","offers":[{"title":"100 ml","offer_id":47585957970170,"sku":"SERUM0001","price":49.0,"currency_code":"USD","in_stock":true},{"title":"50 ml ricarica","offer_id":47585958002938,"sku":"SERUM0001-r","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/2227\/0458\/files\/byvalenti-roses-and-hibiscus-niacinamide-toner.webp?v=1767070333"},{"product_id":"barcola-replenishing-elixir","title":"Barcola Azzurro Mare Elisir Riequilibrante","description":"\u003cp data-start=\"3271\" data-end=\"3460\"\u003eSiero viso privo di oli con acido ialuronico e niacinamide per migliorare la texture della pelle, supportare la barriera cutanea e ripristinare l’idratazione. Formulato per pelli sensibili.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"3462\" data-end=\"3821\"\u003eAcido ialuronico (basso e alto peso molecolare) – Idratazione a più livelli, effetto rimpolpante\u003c\/li\u003e\n\u003cli data-start=\"3462\" data-end=\"3821\"\u003eNiacinamide (5 %) – Riequilibra il sebo, supporta la barriera cutanea, aiuta ad affinare i pori\u003c\/li\u003e\n\u003cli data-start=\"3462\" data-end=\"3821\"\u003eBiofermento di alghe marine – Ricco di nutrienti, aiuta a lenire la pelle\u003c\/li\u003e\n\u003cli data-start=\"3462\" data-end=\"3821\"\u003eIdrolati di rosa e cetriolo – Rinfrescano delicatamente senza agenti sensibilizzanti\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"by valenti","offers":[{"title":"30 ml","offer_id":44667179761914,"sku":"TRST0002","price":140.0,"currency_code":"USD","in_stock":true},{"title":"15 ml","offer_id":44836285612282,"sku":"TRST0002-t","price":70.0,"currency_code":"USD","in_stock":true},{"title":"30 ml ricarica","offer_id":45770027106554,"sku":"TRST0002-rl","price":140.0,"currency_code":"USD","in_stock":true},{"title":"15 ml ricarica","offer_id":45770027139322,"sku":"TRST0002-rs","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/2227\/0458\/files\/byvalenti-barcola-azzurro-mare.webp?v=1772247136"},{"product_id":"aqua-b3-niacinamide-serum","title":"Aqua B3 Siero viso acquoso","description":"\u003cp data-start=\"3815\" data-end=\"4127\"\u003eFormulato per affinare la grana della pelle, riequilibrare la produzione di sebo, lenire i rossori e supportare la funzione barriera grazie a una formula minimalista a base acquosa con il 10 % di niacinamide. A rapido assorbimento e adatto a tutti i tipi di pelle, comprese quelle sensibili e a tendenza acneica.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"4129\" data-end=\"4571\"\u003eSiero alla niacinamide con 8 ingredienti\u003c\/li\u003e\n\u003cli data-start=\"4129\" data-end=\"4571\"\u003e10 % di niacinamide + biofermento di alghe marine — ricco di minerali e polisaccaridi\u003c\/li\u003e\n\u003cli data-start=\"4129\" data-end=\"4571\"\u003eRiduce visibilmente i rossori. Affina i pori. Bilancia il sebo. Idrata.\u003c\/li\u003e\n\u003cli data-start=\"4129\" data-end=\"4571\"\u003ePer tutti i tipi di pelle — inclusa la pelle adolescente\u003c\/li\u003e\n\u003cli data-start=\"4129\" data-end=\"4571\"\u003eSenza profumo. Senza alcool. Leggero e a rapido assorbimento\u003c\/li\u003e\n\u003cli data-start=\"4129\" data-end=\"4571\"\u003eProgettato dermatologicamente per adolescenti e adulti\u003c\/li\u003e\n\u003cli data-start=\"4129\" data-end=\"4571\"\u003e86 % degli ingredienti di origine naturale\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"by valenti","offers":[{"title":"30 ml","offer_id":44754254463226,"sku":"TRST0004","price":76.0,"currency_code":"USD","in_stock":true},{"title":"15 ml","offer_id":45769991553274,"sku":"TRST0004-rl","price":35.0,"currency_code":"USD","in_stock":true},{"title":"30 ml ricarica","offer_id":47209900114170,"sku":null,"price":76.0,"currency_code":"USD","in_stock":true},{"title":"15 ml ricarica","offer_id":47209900146938,"sku":null,"price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/2227\/0458\/files\/aquab3niacinamideserum-1.webp?v=1769875733"},{"product_id":"l-essenza-triestina-repair-bundle","title":"L’Essenza Triestina  Set Riparatore","description":"\u003cp data-start=\"4196\" data-end=\"4397\"\u003eSistema in due fasi formulato per migliorare la levigatezza della pelle, l’elasticità e l’equilibrio generale. Indicato per pelli che mostrano segni di sensibilità, squilibrio o invecchiamento precoce.\u003c\/p\u003e\n\u003cp data-start=\"4399\" data-end=\"4607\"\u003e\u003cstrong data-start=\"4399\" data-end=\"4431\"\u003eSiero Levigante al Bakuchiol\u003c\/strong\u003e\u003cbr data-start=\"4431\" data-end=\"4434\"\u003eL’1 % di bakuchiol aiuta a affinare la texture cutanea e a ridurre l’aspetto delle prime linee, supportando al contempo la calma della pelle e l’equilibrio dell’idratazione.\u003c\/p\u003e\n\u003cp data-start=\"4609\" data-end=\"4870\"\u003e\u003cstrong data-start=\"4609\" data-end=\"4649\"\u003eCrema Notte Riparatrice al Bakuchiol\u003c\/strong\u003e\u003cbr data-start=\"4649\" data-end=\"4652\"\u003eL’1 % di bakuchiol e lo 0,3 % di palmitato di retinile supportano il rinnovamento cutaneo notturno. Ceramidi, acido ialuronico e squalano di oliva aiutano a mantenere l’integrità della barriera cutanea e l’idratazione.\u003c\/p\u003e\n\u003cp data-start=\"4872\" data-end=\"5027\"\u003e\u003cstrong data-start=\"4872\" data-end=\"4882\"\u003eBonus:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eSiero Aqua B3 con il 10 % di niacinamide e biofermento di alghe marine per aiutare ad affinare la texture e riequilibrare la produzione di sebo.\u003c\/p\u003e","brand":"by valenti","offers":[{"title":"Default Title","offer_id":47698006114554,"sku":null,"price":260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/2227\/0458\/files\/byvalenti-lessenza-triestina-1.webp?v=1763215874"},{"product_id":"aqua-b3-10-niacinamide-aqueous-serum-olio-di-c-10-vitamin-c-lipid-serum-bundle","title":"Duo Aqua B3 + Olio di C","description":"\u003cp data-start=\"3225\" data-end=\"3339\"\u003eDuo di sieri a base acquosa e lipidica progettato per supportare l’equilibrio cutaneo e la luminosità della pelle.\u003c\/p\u003e\n\u003cp data-start=\"3341\" data-end=\"3352\"\u003e\u003cstrong data-start=\"3341\" data-end=\"3352\"\u003eAqua B3\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"3354\" data-end=\"3690\"\u003eNiacinamide (10 %): Aiuta a regolare la produzione di sebo, affinare la texture cutanea e supportare la barriera della pelle\u003c\/li\u003e\n\u003cli data-start=\"3354\" data-end=\"3690\"\u003eBiofermento di alghe marine: Contribuisce all’idratazione e al mantenimento dell’equilibrio cutaneo\u003c\/li\u003e\n\u003cli data-start=\"3354\" data-end=\"3690\"\u003eSorbitolo + propandiolo 1,3: Umettanti che aiutano a preservare l’idratazione e la morbidezza della pelle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3692\" data-end=\"3705\"\u003e\u003cstrong data-start=\"3692\" data-end=\"3705\"\u003eOlio di C\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"3707\" data-end=\"4013\"\u003eVitamina C (10 % tetrahexyldecyl ascorbate): Antiossidante liposolubile che supporta la luminosità e l’uniformità del tono cutaneo\u003c\/li\u003e\n\u003cli data-start=\"3707\" data-end=\"4013\"\u003eSqualano di oliva: Rafforza la barriera lipidica e limita la perdita di idratazione\u003c\/li\u003e\n\u003cli data-start=\"3707\" data-end=\"4013\"\u003eTanaceto blu: Contribuisce ad azioni lenitive e aiuta a ridurre l’aspetto dei rossori\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"by valenti","offers":[{"title":"Default Title","offer_id":47725401112826,"sku":null,"price":167.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/2227\/0458\/files\/byvalenti-oliodic-aquab3-bundle-2.webp?v=1766284563"},{"product_id":"azzurrino-bi-phase-superb-brightening-serum","title":"Azzurrino Siero bifasico ad azione illuminante intensa","description":"\u003cp\u003eSiero bifasico leggero a rapido assorbimento, senza residui. Ispirato al Mare Adriatico, formulato per idratare, illuminare visibilmente e aiutare a riequilibrare la produzione di sebo per un incarnato più chiaro e uniforme.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNiacinamide e vitamina C agiscono sul tono non uniforme.\u003c\/li\u003e\n\u003cli\u003eNiacinamide aiuta a migliorare i segni post-acne per una pelle visibilmente più uniforme.\u003c\/li\u003e\n\u003cli\u003eAcido ialuronico e biofermento di alga marina idratano e rimpolpano la pelle.\u003c\/li\u003e\n\u003cli\u003eLo squalano di oliva supporta la barriera cutanea naturale.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdatto a tutti i tipi di pelle. Risultati in 1–3 settimane.\u003c\/p\u003e\n\u003cp\u003e92,8 % di ingredienti di origine naturale.\u003c\/p\u003e","brand":"by valenti","offers":[{"title":"Default Title","offer_id":47928164581626,"sku":"SERUM0003","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/2227\/0458\/files\/byvalenti-azzurrino-bi-phase-superb-brightening-serum.webp?v=1768774966"},{"product_id":"trieste-smoothing-eye-renewal-mask","title":"Trieste Smoothing Eye Renewal Mask","description":"\u003cp\u003eSpirulina extract, sea kelp bioferment, hyaluronic acid, and 5% niacinamide provide lightweight hydration to support a more even, balanced-looking eye area. The balm, with CoQ10, retinol, and vitamin C, seals in moisture, helping soften the appearance of fine lines and other visible signs of aging.\u003c\/p\u003e\n\u003cp\u003eSkin around the eyes appears smoother, more hydrated, and refreshed with regular use.\u003c\/p\u003e","brand":"by valenti","offers":[{"title":"Default Title","offer_id":48083872448762,"sku":null,"price":157.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/2227\/0458\/files\/by-valenti-eye-gift-set_page1.webp?v=1766276869"},{"product_id":"the-building-blocks-brightening-set","title":"The Building Blocks Brightening Set","description":"\u003cp\u003eA three-step routine designed to improve the appearance of uneven skin tone, dullness, and visible discoloration. This set supports brighter-looking skin while maintaining barrier function without irritation.\u003c\/p\u003e\n\u003cp\u003eUneven skin tone is often misinterpreted as excess pigmentation. In many cases, the issue lies in irregular melanin distribution, barrier disruption, and oxidative stress rather than overproduction alone.\u003c\/p\u003e\n\u003cp\u003eSuitable for all skin types including reactive skins it contains: a foaming cleanser, a barrier support serum with 10% niacinamide and brightening serum. with 10% vitamin C tetrahexyldecyl ascorbate (THDA). \u003c\/p\u003e\n\u003cp\u003eVitamin C THDA inhibits the enzyme (tyrosinase) responsible for producing melanin, while niacinamide inhibits the transfer of pigment to skin cells. The result is reduction of dark and brown spots without irritation.\u003c\/p\u003e","brand":"by valenti","offers":[{"title":"Default Title","offer_id":48521968058618,"sku":null,"price":206.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/2227\/0458\/files\/byvalenti-building-blocks-brightening-set-2.webp?v=1774359524"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/2227\/0458\/collections\/newsletter-byvalenti-aquab3niacinamideserum-2.webp?v=1779399569","url":"https:\/\/it.byvalenti.com\/collections\/niacinamide-serum.oembed","provider":"By Valenti","version":"1.0","type":"link"}