{"product_id":"nioxin-diamax-advanced-hair-thickening-serum-3-38-fl-oz-daily-leave-in-with-caffeine-niacinamide-for-fuller-looking-stronger","title":"NIOXIN Diamax Advanced Hair Thickening Serum 3.38 fl oz — Daily Leave-In with Caffeine \u0026 Niacinamide for Fuller-Looking, Stronger","description":"\u003cp\u003e\u003cstrong\u003eNioxin Diamax Advanced is a daily leave-in serum that visibly thickens each hair strand and helps protect against breakage for fuller-looking hair.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned by a salon brand with decades of thinning-hair experience, this leave-in treatment combines HTX technology with caffeine, niacinamide and panthenol to temporarily increase hair diameter and support stronger-looking lengths. Use it as part of your routine to add instant fullness while nourishing the scalp without heavy buildup.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will I notice thicker-looking hair?\u003c\/h3\u003e\n\u003cp\u003eMany users see an immediate visual increase in hair diameter after application, with the thicker appearance lasting through the day. Consistent daily use improves resilience and helps hair maintain that fuller look over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstant optical thickening effect that lasts up to several hours.\u003c\/li\u003e\n  \u003cli\u003eDaily application helps reduce breakage and preserve length.\u003c\/li\u003e\n  \u003cli\u003eWorks on all hair textures without weighing strands down.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat ingredients make Diamax Advanced effective?\u003c\/h3\u003e\n\u003cp\u003eThe formula relies on HTX technology and proven actives such as caffeine for energizing the scalp, niacinamide to support surface health, and panthenol to add moisture and pliability. These components work together to fortify the hair shaft and improve strand appearance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCaffeine: energizes scalp areas and supports a healthy-looking environment.\u003c\/li\u003e\n  \u003cli\u003eNiacinamide: helps fortify the hair surface and supports overall scalp condition.\u003c\/li\u003e\n  \u003cli\u003ePanthenol (pro-vitamin B5): increases moisture retention and flexibility of hair fiber.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use this serum for best results?\u003c\/h3\u003e\n\u003cp\u003eApply to clean, towel-dried hair and distribute evenly through roots and lengths. Style as usual—this lightweight leave-in won’t create heavy residue—and use daily for continued protection against breakage and a fuller appearance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse after cleansing on damp hair for optimal spreadability.\u003c\/li\u003e\n  \u003cli\u003eConcentrate at scalp and along lengths prone to damage.\u003c\/li\u003e\n  \u003cli\u003eCombine with your preferred Nioxin cleansing and conditioning routine for best maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this product work on my hair type and color-treated hair?\u003c\/h3\u003e\n\u003cp\u003eDiamax Advanced is formulated to be compatible with a wide range of hair textures and colors. Its lightweight conditioning agents are suitable for fine, medium, or coarse hair and are safe to use on color-treated strands when used as directed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuitable for fine through coarse textures without adding weight.\u003c\/li\u003e\n  \u003cli\u003eSafe for color-treated hair when incorporated into a gentle care routine.\u003c\/li\u003e\n  \u003cli\u003eNon-greasy finish that layers well with styling products.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Nioxin Diamax Advanced is aimed at anyone seeking visibly thicker-looking hair and improved resistance to breakage—especially people noticing reduced strand diameter, those wanting fuller styles, or anyone who wants a lightweight, daily leave-in that supports hair strength and scalp health. It is ideal for users who prefer salon-grade treatments with science-backed ingredients and a non-heavy finish.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eALCOHOL DENAT., AQUA\/WATER\/EAU, NIACINAMIDE, PEG\/PPG-20\/23 DIMETHICONE, CAFFEINE, ACRYLATES\/C10-30 ALKYL ACRYLATE CROSSPOLYMER, PARFUM\/FRAGRANCE, GLYCERIN, TETRAHYDROXYPROPYL ETHYLENEDIAMINE, MENTHA PIPERITA (PEPPERMINT) OIL, MENTHA ARVENSIS LEAF OIL, MENTHOL, PEG-30 DIPOLYHYDROXYSTEARATE, BENZYL SALICYLATE, HEXYL CINNAMAL, TRIDECETH-6, ALPHA-ISOMETHYL IONONE, LINALOOL, LIMONENE, CITRONELLOL\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use Diamax daily?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Diamax is formulated for daily leave-in use to maintain thicker-looking hair and reduce breakage when applied to damp or dry hair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will it weigh my hair down?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The lightweight formula is designed to add diameter without heavy residue, suitable for fine to coarse hair types.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NIOXIN","offers":[{"title":"Default Title","offer_id":57794271674700,"sku":"B086G3LFD1","price":67.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/5912\/6860\/files\/nioxin-diamax-front-packaging.jpg?v=1781477850","url":"https:\/\/belvera.co.uk\/products\/nioxin-diamax-advanced-hair-thickening-serum-3-38-fl-oz-daily-leave-in-with-caffeine-niacinamide-for-fuller-looking-stronger","provider":"Belvera | British Beauty, Skin Care \u0026 Personal Wellness","version":"1.0","type":"link"}