{"product_id":"principia-am-10-mandelic-acid-serum","title":"Principia AM-10 Mandelic Acid Serum 10% + Alpha Arbutin 1% for Dark Spot \u0026 Oil Control 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 AM-10\u003c\/strong\u003e is a Brazilian dermocosmetics night serum designed for visible refinement—supporting clearer-looking pores, smoother texture, and a more even-looking complexion. With \u003cspan class=\"font-semibold\"\u003e10% mandelic acid (AHA)\u003c\/span\u003e and \u003cspan class=\"font-semibold\"\u003e1% alpha arbutin\u003c\/span\u003e, it offers a polished approach to tone and congestion concerns: gentle resurfacing paired with targeted pigment appearance support.\u003c\/p\u003e\n\u003cp\u003eThe result is a modern routine step that feels elegant and intentional, ideal for everyday users, salon retail, and international resellers seeking a globally understood brightening story with clearly stated active concentrations.\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\u003cstrong\u003e\u003cspan class=\"font-semibold\"\u003eDark spot appearance support:\u003c\/span\u003e\u003c\/strong\u003e Helps reduce the appearance of dark spots and supports a more even-looking tone.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eOil control\u003c\/strong\u003e:\u003c\/span\u003e Helps regulate the look of excess sebum for a fresher finish.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eBlemish-prone support\u003c\/strong\u003e:\u003c\/span\u003e Helps reduce the look of blackheads and blemishes by supporting clearer-looking pores.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003ePore appearance support\u003c\/strong\u003e:\u003c\/span\u003e Helps minimize the look of enlarged pores as surface buildup is reduced.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eSoftness + smooth feel\u003c\/strong\u003e:\u003c\/span\u003e Helps refine skin texture for a softer, more polished touch.\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 luminosity and overall radiance.\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\u003eApply on alternate nights for 1 week, then every night as tolerated. Use before creams. With a clean, dry face, dispense a few drops onto fingertips (avoid touching the dropper to skin) and spread gently over the face, including the under-eye area if tolerated.\u003cbr\u003eDo not apply on eyelids, on the outer corners of the nose and mouth, or on irritated\/broken skin. Avoid sun exposure during use and 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: \u003cspan class=\"font-semibold\"\u003etone (100%)\u003c\/span\u003e, \u003cspan class=\"font-semibold\"\u003epore size appearance (100%)\u003c\/span\u003e, \u003cspan class=\"font-semibold\"\u003esoftness (100%)\u003c\/span\u003e, \u003cspan class=\"font-semibold\"\u003eglow (100%)\u003c\/span\u003e, \u003cspan class=\"font-semibold\"\u003eoiliness (94%)\u003c\/span\u003e, \u003cspan class=\"font-semibold\"\u003emelasma appearance (93%)\u003c\/span\u003e, \u003cspan class=\"font-semibold\"\u003eunder-eye dark circles (93%)\u003c\/span\u003e, and \u003cspan class=\"font-semibold\"\u003eunder-eye puffiness (93%)\u003c\/span\u003e. The brand also reports instrumental measurements related to hydration, firmness, and elasticity indicators, plus an image-based analysis showing a reduction in the length of under-eye wrinkle appearance after 30 and 60 days. 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\u003eMandelic Acid (10%)\u003c\/strong\u003e:\u003c\/span\u003e An AHA derived from bitter almond extract. With a higher molecular weight than some other AHAs, mandelic acid is often associated with a gentler-feeling renewal process. It supports surface exfoliation and cell turnover, helping smooth the look of texture, regulate the look of oiliness, and support pore clarity by reducing surface buildup.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003e\n\u003cspan class=\"font-semibold\"\u003e\u003cstrong\u003eAlpha Arbutin (1%)\u003c\/strong\u003e:\u003c\/span\u003e A biosynthetic active used to support more even-looking tone by influencing melanin-related processes. Helps reduce the appearance of dark spots and supports a brighter, more uniform complexion (appearance-focused cosmetic claim).\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. Do not apply on irritated, broken, or compromised skin.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003eAvoid eyelids and sensitive facial folds; avoid direct contact with eyes. If contact occurs, rinse thoroughly.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003eDuring the first week, use small amounts on alternate nights; temporary stinging, tingling, or dryness may occur.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003eIf irritation persists, stop use and seek medical guidance.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003eAvoid sun exposure during use; wear broad-spectrum sunscreen daily.\u003c\/li\u003e\n\u003cli class=\"py-0\"\u003eKeep out of reach of children. Do not use on 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\u003cli class=\"py-0\"\u003ePairing note: The brand indicates it can be used with other formulas, with some restrictions—avoid combining with high concentrations of other AHAs in the same routine.\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\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\"\u003eWhen should I use Principia AM-10?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse it at night. Start on alternate nights for one week, then increase to nightly use as tolerated.\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 AM-10?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Daily broad-spectrum sunscreen is essential when using exfoliating acids to help protect the look of tone and results.\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 AM-10 suitable for oily or blemish-prone skin?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is suitable for all skin types and is often chosen for routines focused on oil control, pore appearance, and the look of blackheads and blemishes.\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 apply AM-10 around the eyes?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe brand indicates safety and efficacy were evaluated for the eye area. Apply gently, avoid eyelids, and avoid direct contact with eyes.\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 combine AM-10 with other acids?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe brand notes it can be used with other formulas, but avoid stacking with high concentrations of other AHAs in the same routine to reduce the risk of irritation.\u003c\/p\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\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 AM-10 to your cart and elevate your night routine with Brazilian dermocosmetic precision.\u003c\/h3\u003e\n\n\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 18px; background: #F6F7FB; border: 1px solid #E7E9F3; border-radius: 14px; padding: 12px; color: rgba(20,32,62,.74); font-size: 12.5px; line-height: 1.6; max-width: 100%; box-sizing: border-box; overflow: hidden;\"\u003e\n\u003cstrong style=\"color: #14203e;\"\u003eDisclaimer:\u003c\/strong\u003e For external use only. Patch test before use and discontinue use if irritation occurs. Individual results may vary. Product packaging may be labeled in Portuguese. Our Brazilian-brand products are sourced in Brazil and are regularized with ANVISA (Agência Nacional de Vigilância Sanitária), Brazil's national health authority, under the applicable regulatory framework for each product category. ANVISA regularization applies to the Brazilian market and is not equivalent to U.S. FDA approval. See our full \u003ca href=\"\/en-ie\/pages\/disclaimers\" style=\"color: rgba(20,32,62,.74); text-decoration: underline;\"\u003eDisclaimers \u0026amp; Important Information\u003c\/a\u003e.\u003c\/div\u003e","brand":"Principia","offers":[{"title":"Default Title","offer_id":52626609963324,"sku":"MKPBR2024-1978","price":36.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0090\/2840\/3278\/files\/principia-am-10-mandelic-acid-serum-10-percent-alpha-arbutin-1-percent-1-01-fl-oz-30-ml-front-bottle-buy-now-at-mkpbr-com-worldwide-shipping_ca99d98b-646c-4dc5-aa47-f513b78ffa4b.png?v=1784529666","url":"https:\/\/mkpbr.com\/en-ie\/products\/principia-am-10-mandelic-acid-serum","provider":"MKPBR - Shine Like a Brazilian","version":"1.0","type":"link"}