{"product_id":"principia-mix-02-caffeine-serum","title":"Principia Mix-02 Caffeine Serum 5% + Tranexamic Acid 3% + Ferulic Acid 0.5% for Dark Circle \u0026 Dark Spot Care, 1.01 fl oz (30 mL)","description":"\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cp\u003e\u003cstrong\u003ePrincipia Mix-02\u003c\/strong\u003e is a Brazilian dermocosmetics serum developed to refine the look of under-eyes and uneven tone with a modern, minimalist approach. Featuring \u003cspan class=\"font-semibold\"\u003e5% caffeine\u003c\/span\u003e, \u003cspan class=\"font-semibold\"\u003e3% tranexamic acid\u003c\/span\u003e, and \u003cspan class=\"font-semibold\"\u003e0.5% ferulic acid\u003c\/span\u003e, it supports a brighter-looking eye area, a more even-looking complexion, and a smoother, more luminous finish over time. Lightweight and easy to layer, Mix-02 is designed for day-and-night routines—ideal for customers who want targeted care without complexity, and for salons and resellers seeking a globally understandable active story.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eDark spot appearance support\u003c\/strong\u003e:\u003c\/span\u003e Helps reduce the appearance of dark marks and supports a more even-looking complexion.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cstrong\u003e\u003cspan class=\"font-semibold\"\u003eUnder-eye brightening support:\u003c\/span\u003e\u003c\/strong\u003e Helps improve the look of under-eye darkness for a fresher appearance.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003ePuffiness appearance care\u003c\/strong\u003e:\u003c\/span\u003e Helps reduce the look of under-eye puffiness and support a smoother under-eye contour.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eTone uniformity support\u003c\/strong\u003e:\u003c\/span\u003e Helps refine the look of uneven pigmentation over time.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eGlow enhancement\u003c\/strong\u003e:\u003c\/span\u003e Helps improve the look of radiance for a polished, luminous finish.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eNon-comedogenic profile\u003c\/strong\u003e:\u003c\/span\u003e The brand reports no comedogenic or acnegenic effect in testing.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eDermatologically tested (brand-reported)\u003c\/strong\u003e:\u003c\/span\u003e The brand reports irritation and sensitization testing, plus hypoallergenic \/ non-photoirritating evaluation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan class=\"font-semibold\"\u003eHow to use\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003eUse daily, morning and night. Apply on clean, dry skin before creams, sunscreen, and makeup. Dispense a few drops onto fingertips (avoid touching the dropper to skin) and spread gently over the face, especially the under-eye area. Avoid direct contact with eyes. Store in a cool, dry place. Wear sunscreen daily.\u003c\/p\u003e\n\u003cp\u003eIn a \u003cspan class=\"font-semibold\"\u003e60-day perceived efficacy study\u003c\/span\u003e, participants reported improvements in the under-eye area: \u003cspan class=\"font-semibold\"\u003eoverall look (100%)\u003c\/span\u003e, \u003cspan class=\"font-semibold\"\u003ebrightening (100%)\u003c\/span\u003e, and \u003cspan class=\"font-semibold\"\u003esize appearance (97%)\u003c\/span\u003e for dark circles; and for puffiness: \u003cspan class=\"font-semibold\"\u003eoverall look (100%)\u003c\/span\u003e, \u003cspan class=\"font-semibold\"\u003esize appearance (97%)\u003c\/span\u003e, plus improvements in \u003cspan class=\"font-semibold\"\u003eluminosity (100%)\u003c\/span\u003e and \u003cspan class=\"font-semibold\"\u003euniformity (100%)\u003c\/span\u003e. The brand also reports improvement in melasma appearance (97%). Results may vary.\u003c\/p\u003e\n\u003ch3\u003eIngredients Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eTranexamic Acid (3%)\u003c\/strong\u003e:\u003c\/span\u003e A synthetic derivative of the amino acid lysine. Used in skincare to support mechanisms involved in skin pigmentation, helping reduce the appearance of dark spots—including those associated with blemishes and sun exposure (appearance-focused cosmetic claim).\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eFerulic Acid (0.5%)\u003c\/strong\u003e:\u003c\/span\u003e A plant-derived antioxidant found in seeds, leaves, and bark. Ferulic acid is valued for antioxidant and soothing support, helping protect key skin components such as keratinocytes, fibroblasts, collagen, and elastin—making it a refined partner ingredient in tone-focused routines.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eCaffeine (5%)\u003c\/strong\u003e:\u003c\/span\u003e A methylxanthine alkaloid found naturally in sources such as coffee beans and tea leaves. In skincare, caffeine is widely used to support a fresher-looking eye area; it is associated with vasoconstrictive, anti-inflammatory, and antioxidant properties, helping reduce the appearance of dark circles and puffiness and supporting the look of more even tone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003ch4\u003eAllergen warnings \/ cautions\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cul class=\"ml-1 list-outside list-disc\"\u003e\n\u003cli class=\"py-0\"\u003eFor external use only. Discontinue use if irritation occurs.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003eAvoid direct contact with eyes; rinse thoroughly if contact occurs.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003eAvoid unprotected sun exposure; use broad-spectrum sunscreen daily.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003eDo not use on children. Keep out of reach of children.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003eStore in a cool, dry place.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003eAccording to the brand, the formula is free from parabens, petrolatum, sulfates, silicones, fragrance, and gluten.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"font-semibold\"\u003ePrincipia\u003c\/span\u003e \u003c\/strong\u003eis a Brazilian \u003cstrong\u003edermocosmetics \u003c\/strong\u003ebrand founded in 2020 in São Paulo with a clear mission: \u003cspan class=\"font-semibold\"\u003edemocratize high-performance \u003cstrong\u003eskincare\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003ethrough science-backed formulas, radical ingredient transparency, and fair, accessible positioning. Instead of relying on hype, Principia focuses on what matters most for results-driven routines—\u003cstrong\u003e\u003cspan class=\"font-semibold\"\u003eactive ingredients at disclosed percentages\u003c\/span\u003e, straightforward formulations, and a minimalist, clinical aesthetic designed for everyday use.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"font-semibold\"\u003eCan I use Principia Mix-02 every day?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The brand indicates daily AM\/PM use. Apply gently, especially around the under-eye area.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"font-semibold\"\u003eIs Mix-02 only for the under-eye area?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is designed for use on the face with special focus around the eyes, supporting the look of dark circles, puffiness, and uneven tone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"font-semibold\"\u003eDo I need sunscreen while using Mix-02?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Daily broad-spectrum sunscreen helps maintain the look of tone improvements and protects the skin from sun-related unevenness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"font-semibold\"\u003eCan I layer Mix-02 with other serums?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. It is typically used before moisturizer and sunscreen. If your routine includes strong acids or retinoids, consider alternating to keep skin comfortable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"font-semibold\"\u003eCan Mix-02 cause visible peeling?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe brand indicates it generally does not cause visible peeling. If irritation occurs, reduce frequency and support with a moisturizer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"font-semibold\"\u003eIs Principia cruelty-free?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe brand states it does not test on animals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"size-full [\u0026amp;\u0026gt;*:first-child]:mt-0 [\u0026amp;\u0026gt;*:last-child]:mb-0 space-y-2\"\u003e\n\u003cp\u003eComplete your routine by exploring \u003cspan class=\"text-gray-500\" title=\"Blocked URL: {{INTERNAL_LINK}}\"\u003eour curated \u003ca href=\"https:\/\/mkpbr.com\/collections\/principia\"\u003ePrincipia Collection\u003c\/a\u003e\u003c\/span\u003e for a clean, balanced, everyday glow.\u003c\/p\u003e\n\u003ch3\u003eAdd Principia Mix-02 to your cart and bring Brazilian dermocosmetic elegance to your tone and under-eye routine.\u003c\/h3\u003e\n\u003ch4\u003eLegal Disclaimer\u003c\/h4\u003e\n\u003cp\u003e⚠️ The product label may contain additional or different information than stated on the website. Always read labels, warnings, and usage instructions before using or consuming.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Principia","offers":[{"title":"Default Title","offer_id":52626412044604,"sku":"MKPBR2024-1976","price":57.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0090\/2840\/3278\/files\/principia-mix-02-caffeine-serum-5-percent-tranexamic-acid-3-percent-ferulic-acid-0-5-percent-1-01-fl-oz-30-ml-front-bottle-buy-now-at-mkpbr-com-worldwide-shipping.png?v=1768398996","url":"https:\/\/mkpbr.com\/en-gp\/products\/principia-mix-02-caffeine-serum","provider":"MKPBR - Shine Like a Brazilian","version":"1.0","type":"link"}