{"product_id":"signal-c™","title":"Signal C™","description":"\u003ch2 data-section-id=\"mut6t6\" data-start=\"150\" data-end=\"162\"\u003eSignal C™\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1wqw2bq\" data-start=\"163\" data-end=\"205\"\u003eVitamin CE + Ferulic Antioxidant Serum\u003c\/h3\u003e\n\u003cp data-start=\"207\" data-end=\"288\"\u003e\u003cstrong data-start=\"207\" data-end=\"288\"\u003eIntelligent antioxidant protection. Visible radiance. Healthier-looking skin.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"290\" data-end=\"558\"\u003eSignal C™ is a clinically inspired antioxidant serum formulated with 15% Vitamin C, 1% Vitamin E, and 0.5% Ferulic Acid to help visibly brighten skin, improve the appearance of uneven tone, and defend against environmental stressors that contribute to premature aging.\u003c\/p\u003e\n\u003cp data-start=\"560\" data-end=\"816\"\u003eThis advanced formulation combines three proven antioxidants that work synergistically to enhance stability and effectiveness while helping support a brighter, more radiant complexion. With continued use, skin appears more luminous, refined, and resilient.\u003c\/p\u003e\n\u003cp data-start=\"818\" data-end=\"989\"\u003eDesigned for daily use, Signal C™ absorbs quickly and layers seamlessly into any skincare routine, delivering powerful antioxidant protection without heaviness or residue.\u003c\/p\u003e\n\u003ch3 data-section-id=\"ycgkk5\" data-start=\"991\" data-end=\"1007\"\u003eKey Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1009\" data-end=\"1323\"\u003e\n\u003cli data-section-id=\"1congat\" data-start=\"1009\" data-end=\"1050\"\u003eHelps brighten dull, tired-looking skin\u003c\/li\u003e\n\u003cli data-section-id=\"cirvyb\" data-start=\"1051\" data-end=\"1096\"\u003eImproves the appearance of uneven skin tone\u003c\/li\u003e\n\u003cli data-section-id=\"mxw7a0\" data-start=\"1097\" data-end=\"1139\"\u003eProvides powerful antioxidant protection\u003c\/li\u003e\n\u003cli data-section-id=\"boaza\" data-start=\"1140\" data-end=\"1201\"\u003eHelps reduce the visible effects of environmental stressors\u003c\/li\u003e\n\u003cli data-section-id=\"1i0lnnv\" data-start=\"1202\" data-end=\"1256\"\u003eSupports a more radiant, youthful-looking complexion\u003c\/li\u003e\n\u003cli data-section-id=\"j31i99\" data-start=\"1257\" data-end=\"1323\"\u003eLightweight, fast-absorbing formula suitable for most skin types\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1nx5zqf\" data-start=\"1325\" data-end=\"1344\"\u003eKey Ingredients\u003c\/h3\u003e\n\u003cp data-start=\"1346\" data-end=\"1495\"\u003e\u003cstrong data-start=\"1346\" data-end=\"1363\"\u003e15% Vitamin C\u003c\/strong\u003e\u003cbr\u003eA potent antioxidant that helps brighten skin, improve the appearance of discoloration, and promote a more even-looking complexion.\u003c\/p\u003e\n\u003cp data-start=\"1497\" data-end=\"1615\"\u003e\u003cstrong data-start=\"1497\" data-end=\"1513\"\u003e1% Vitamin E\u003c\/strong\u003e\u003cbr\u003eSupports the skin barrier and works synergistically with Vitamin C to enhance antioxidant protection.\u003c\/p\u003e\n\u003cp data-start=\"1617\" data-end=\"1716\"\u003e\u003cstrong data-start=\"1617\" data-end=\"1638\"\u003e0.5% Ferulic Acid\u003c\/strong\u003e\u003cbr\u003eHelps stabilize Vitamins C and E while amplifying their antioxidant benefits.\u003c\/p\u003e\n\u003ch3 data-section-id=\"17h2msu\" data-start=\"1718\" data-end=\"1732\"\u003eHow To Use\u003c\/h3\u003e\n\u003cp data-start=\"1734\" data-end=\"1886\"\u003eApply 3–5 drops to clean, dry skin each morning. Follow with moisturizer and SPF. For best results, use daily as part of your Upper Theory Skin regimen.\u003c\/p\u003e","brand":"Upper Theory Skin","offers":[{"title":"Default Title","offer_id":45185906966710,"sku":null,"price":78.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/6122\/1046\/files\/ChatGPTImageJun13_2026_11_37_16AM.png?v=1781368789","url":"https:\/\/upper-theory-skin.myshopify.com\/products\/signal-c%e2%84%a2","provider":"Upper Theory Skin","version":"1.0","type":"link"}