{"product_id":"yonka-vitamin-c-serum-20-concentrated-brightening-firming-serum-0-17-fl-oz-stabilized-oil-soluble-vitamin-c","title":"Yonka Vitamin C Serum 20% — Concentrated Brightening \u0026 Firming Serum, 0.17 fl oz (Stabilized Oil-Soluble Vitamin C)","description":"\u003cp\u003e\u003cstrong\u003eYon-Ka 20% Vitamin C Serum is a highly concentrated facial treatment that brightens uneven tone, helps firm texture, and supports collagen production using a stabilized, oil-soluble vitamin C formula.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis lightweight serum delivers a 20% concentration of stabilized Vitamin C (ascorbyl tetraisopalmitate) in a formula composed almost entirely of natural-origin ingredients. Designed for daytime and evening use, it pairs botanical cell actives—like turmeric and pomegranate—with a green-science vitamin C derivative to target hyperpigmentation, loss of firmness, and dullness without heavy residues. Clinical monitoring shows measurable improvements in tone evenness and a reduction in uneven patches with twice-daily application.\u003c\/p\u003e\n\n\u003ch3\u003eHow fast will I see improvements in skin tone and texture?\u003c\/h3\u003e\n\u003cp\u003eVisible changes depend on starting condition and consistency, but Yon-Ka’s monitored use study reported measurable improvements within four weeks and continued progress by eight weeks. Results often appear first as increased radiance and gradual fading of dark spots.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstrumental testing showed a marked increase in tone evenness after 28 days.\u003c\/li\u003e\n  \u003cli\u003eFurther reduction in uneven patches was recorded at 56 days with continued use.\u003c\/li\u003e\n  \u003cli\u003eExpect subtle radiance within 1–4 weeks; more significant correction by 6–8 weeks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan this serum work with my other skincare steps or procedures?\u003c\/h3\u003e\n\u003cp\u003eThe Yon-Ka vitamin C serum is formulated to integrate smoothly into most routines and can be used alone or under creams, morning and night. It is also suitable as an intensive course after clinical procedures when recommended by your professional, though you should follow post-procedure guidance for active ingredient use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApply to clean skin before moisturizer for daytime or nighttime routines.\u003c\/li\u003e\n  \u003cli\u003eCompatible with creams and many serums; patch-test if layering strong actives.\u003c\/li\u003e\n  \u003cli\u003eMay be used as a post-procedure adjunct when cleared by your clinician.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this Vitamin C stable and suitable for sensitive skin?\u003c\/h3\u003e\n\u003cp\u003eThis serum uses ascorbyl tetraisopalmitate, an oil-soluble, stabilized form of Vitamin C derived by green-science methods, chosen for better skin compatibility and longer shelf stability compared with ascorbic acid. Formulated with plant cell actives and a high percentage of natural-origin ingredients, it aims to reduce irritation risk while delivering potent antioxidant benefits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUses stabilized, oil-soluble Vitamin C for improved tolerance and persistence on skin.\u003c\/li\u003e\n  \u003cli\u003eContains botanical actives (turmeric, pomegranate) to support firmness and tone.\u003c\/li\u003e\n  \u003cli\u003eHigh natural-origin content minimizes synthetic fillers but perform a patch test if extremely reactive.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Yon-Ka 20% Vitamin C Serum is intended for anyone seeking targeted correction of dark spots, dullness, and early signs of aging—particularly those who prefer high-efficacy, naturally derived actives in a professional-grade formulation. It is suitable for individuals looking to boost radiance, support collagen production, and even skin tone with a concentrated, lightweight treatment. If you have sensitive or highly reactive skin, consult a dermatologist before introducing potent active serums and consider starting with less frequent application while your skin adapts.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKey actives:\u003c\/strong\u003e 20% ascorbyl tetraisopalmitate, turmeric cells, pomegranate cells.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTexture \u0026amp; use:\u003c\/strong\u003e Lightweight serum for AM and PM; layer under moisturizer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClinical context:\u003c\/strong\u003e Dermatologist-monitored improvements noted at 28 and 56 days in a Yon-Ka study.\u003c\/li\u003e\n\u003c\/ul\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: How often should I use Yon-Ka 20% Vitamin C Serum?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use morning and evening on clean skin; start once daily if sensitive, then increase to twice daily as tolerated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this serum reduce dark spots?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Regular application can help fade hyperpigmentation over weeks; measurable improvements were recorded at 28–56 days in monitored testing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Yonka","offers":[{"title":"Default Title","offer_id":49620127514762,"sku":"B0DHSR2P17","price":134.18,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/4825\/6394\/files\/yon-ka-front-packaging.jpg?v=1782835394","url":"https:\/\/auviraskincare.com\/products\/yonka-vitamin-c-serum-20-concentrated-brightening-firming-serum-0-17-fl-oz-stabilized-oil-soluble-vitamin-c","provider":"Auvira Beauty","version":"1.0","type":"link"}