{"product_id":"alterego-40-vol-12-coactivator-cream-33-8-oz","title":"ALTEREGO 40 Vol 12 % Coactivator Cream 33.8 oz","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:9365e135-c420-4db1-afea-675e9ab4289b-374\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:9365e135-c420-4db1-afea-675e9ab4289b-374\" data-turn-id-container=\"request-WEB:9365e135-c420-4db1-afea-675e9ab4289b-374\" data-testid=\"conversation-turn-430\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"c9d97000-97e9-4876-bb32-81b5b287f25e\" dir=\"auto\" data-message-model-slug=\"gpt-5-6\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"LR5Y_W_content markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp dir=\"auto\" data-start=\"262\" data-end=\"639\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong data-start=\"262\" data-end=\"318\"\u003eAlter Ego Italy 40 Vol 12% Coactivator Cream 33.8 oz\u003c\/strong\u003e is a professional cream developer formulated for use with compatible \u003cstrong data-start=\"388\" data-end=\"465\"\u003eAlter Ego Italy permanent hair color and professional lightening products\u003c\/strong\u003e. With a \u003cstrong data-start=\"474\" data-end=\"525\"\u003e40 Volume \/ 12% hydrogen peroxide concentration\u003c\/strong\u003e, this high-strength coactivator is designed for professional color services requiring substantial lifting action.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"641\" data-end=\"969\"\u003eIts creamy consistency helps provide \u003cstrong data-start=\"678\" data-end=\"750\"\u003esmooth mixing, controlled application, and even product distribution\u003c\/strong\u003e, allowing professional colorists to create consistent color and lightening mixtures. The large \u003cstrong data-start=\"846\" data-end=\"867\"\u003e33.8 oz \/ 1000 mL\u003c\/strong\u003e salon-size bottle is ideal for professional environments with frequent color and lightening services.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"971\" data-end=\"1207\"\u003eBecause 40 Volume developer provides significant lifting power, product selection, mixing ratios, application, and processing should always follow the directions for the specific compatible Alter Ego Italy color or lightener being used.\u003c\/p\u003e\n\u003ch2 dir=\"auto\" data-start=\"1209\" data-end=\"1224\"\u003eWhat It Does\u003c\/h2\u003e\n\u003cp dir=\"auto\" data-start=\"1226\" data-end=\"1391\"\u003eAlter Ego Italy 40 Vol 12% Coactivator Cream works as an \u003cstrong data-start=\"1283\" data-end=\"1306\"\u003eoxidizing developer\u003c\/strong\u003e that activates compatible professional oxidative hair color and lightening formulas.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"1393\" data-end=\"1536\"\u003eThe \u003cstrong data-start=\"1397\" data-end=\"1425\"\u003e40 Volume \/ 12% strength\u003c\/strong\u003e provides high lifting action for professional services where a stronger developer is specifically recommended.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"1538\" data-end=\"1689\"\u003eIts cream texture helps create a workable mixture for \u003cstrong data-start=\"1592\" data-end=\"1688\"\u003econtrolled application, consistent saturation, and professional color or lightening services\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2 dir=\"auto\" data-start=\"1691\" data-end=\"1706\"\u003eKey Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1708\" data-end=\"2347\"\u003e\n\u003cli data-start=\"1708\" data-end=\"1752\"\u003e\u003cstrong data-start=\"1710\" data-end=\"1752\"\u003e40 Volume \/ 12% professional developer\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1753\" data-end=\"1784\"\u003eHigh-strength oxidizing cream\u003c\/li\u003e\n\u003cli data-start=\"1785\" data-end=\"1832\"\u003eDesigned for professional hair color services\u003c\/li\u003e\n\u003cli data-start=\"1833\" data-end=\"1882\"\u003eSuitable for compatible professional lighteners\u003c\/li\u003e\n\u003cli data-start=\"1883\" data-end=\"1915\"\u003eProvides strong lifting action\u003c\/li\u003e\n\u003cli data-start=\"1916\" data-end=\"1968\"\u003eActivates compatible oxidative hair color formulas\u003c\/li\u003e\n\u003cli data-start=\"1969\" data-end=\"2005\"\u003eCreamy consistency for easy mixing\u003c\/li\u003e\n\u003cli data-start=\"2006\" data-end=\"2055\"\u003eHelps create smooth professional color mixtures\u003c\/li\u003e\n\u003cli data-start=\"2056\" data-end=\"2089\"\u003eSupports controlled application\u003c\/li\u003e\n\u003cli data-start=\"2090\" data-end=\"2135\"\u003eHelps provide consistent product saturation\u003c\/li\u003e\n\u003cli data-start=\"2136\" data-end=\"2196\"\u003eSuitable for professional high-lift services when directed\u003c\/li\u003e\n\u003cli data-start=\"2197\" data-end=\"2257\"\u003eDesigned to complement compatible Alter Ego Italy products\u003c\/li\u003e\n\u003cli data-start=\"2258\" data-end=\"2283\"\u003eLarge salon-size bottle\u003c\/li\u003e\n\u003cli data-start=\"2284\" data-end=\"2318\"\u003eIdeal for professional colorists\u003c\/li\u003e\n\u003cli data-start=\"2319\" data-end=\"2347\"\u003e\n\u003cstrong data-start=\"2321\" data-end=\"2342\"\u003e33.8 oz \/ 1000 mL\u003c\/strong\u003e size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"auto\" data-start=\"2349\" data-end=\"2362\"\u003eHow to Use\u003c\/h2\u003e\n\u003cp dir=\"auto\" data-start=\"2364\" data-end=\"2394\"\u003e\u003cstrong data-start=\"2364\" data-end=\"2394\"\u003eFor professional use only.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"2396\" data-end=\"2573\"\u003eMix \u003cstrong data-start=\"2400\" data-end=\"2448\"\u003eAlter Ego Italy 40 Vol 12% Coactivator Cream\u003c\/strong\u003e with the appropriate compatible Alter Ego Italy hair color or lightening product according to the manufacturer's directions.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"2575\" data-end=\"2767\"\u003eAlways use the \u003cstrong data-start=\"2590\" data-end=\"2680\"\u003eexact mixing ratio and processing time specified for the color or lightener being used\u003c\/strong\u003e. Do not substitute 40 Volume developer when a lower developer strength is recommended.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"2769\" data-end=\"3015\"\u003eWear suitable protective gloves during preparation, application, and rinsing. Avoid contact with the eyes and scalp irritation, and follow all manufacturer instructions, warnings, strand-testing procedures, and allergy-alert testing requirements.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"3017\" data-end=\"3179\"\u003eBecause \u003cstrong data-start=\"3025\" data-end=\"3095\"\u003e40 Volume \/ 12% developer is a high-strength professional oxidizer\u003c\/strong\u003e, it should be used only for services where this strength is specifically indicated.\u003c\/p\u003e\n\u003ch2 dir=\"auto\" data-start=\"3181\" data-end=\"3192\"\u003eKeywords\u003c\/h2\u003e\n\u003cp dir=\"auto\" data-start=\"3194\" data-end=\"3910\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eAlter Ego 40 Vol Coactivator Cream 33.8 oz, Alter Ego Italy 40 Volume Developer, Alter Ego 12 percent developer, Alter Ego Coactivator Cream, 40 volume cream developer, 12% cream developer, professional hair color developer, professional peroxide developer, salon hair developer, high lift developer, hair lightening developer, developer for professional hair color, Alter Ego Italy developer, Alter Ego hair color developer, professional oxidizing cream, 40 vol peroxide developer, 1000 mL developer, 33.8 oz hair developer, salon size developer, professional color coactivator, hair color oxidizing cream, Alter Ego Italy Coactivator 40 Vol, Alter Ego 40 Vol 12% Coactivator Cream, professional hair color supplies\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden has-[\u0026gt;_:empty]:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Alterego","offers":[{"title":"Default Title","offer_id":44583176732923,"sku":"OB8008277038346","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/2798\/8647\/files\/transparent-2026-10-07T192052.828.png?v=1791426062","url":"https:\/\/www.overstock-beauty.com\/products\/alterego-40-vol-12-coactivator-cream-33-8-oz","provider":"Overstock Beauty Supply","version":"1.0","type":"link"}