{"product_id":"cosmedix-serum-16-30ml","title":"Cosmedix Serum 16 Rapid Renewal Serum 30ml","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eRetinol serum with LG-Retinex for anti-aging without irritation\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eRetinol has been known for decades as the golden ingredient against signs of aging — no other cosmetic ingredient is as thoroughly scientifically supported for reducing fine lines, wrinkles, and pigmentation spots. The downside is well known: redness, flaking, sensitivity, and a buildup period that takes months. For dry or sensitive skin, classic retinol is often simply too harsh, making the benefits unreachable.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eCosmedix Serum 16 solves this problem with 16% LG-Retinex, a proprietary micro-encapsulated combination of retinol and retinal. The lipid encapsulation ensures the ingredient is released in a controlled way in the skin, drastically reducing the typical irritation of retinol without compromising its effectiveness. At the same time, the serum delivers hydration through squalane, hyaluronic acid, vitamin E, and glycosaminoglycans — a combination that provides retinol results even for dry and sensitive skin without downtime.\u003c\/p\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.375rem] font-bold\"\u003eBenefits\u003c\/h2\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReduces the visibility of fine lines and deeper wrinkles\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEvens out pigmentation spots and uneven skin tone\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSuitable for dry and sensitive skin thanks to controlled release\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHydrates during the retinol effect through hyaluronic acid and squalane\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAlmost no redness or flaking — anti-aging without downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eActive ingredients\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003e16% LG-Retinex complex:\u003c\/strong\u003e A patent-pending technology from Cosmedix where retinol and retinal are encapsulated together in a lipid matrix. The micro-encapsulation has three effects: higher stability of the retinoid (no loss due to air exposure), improved penetration into the target layer of the skin, and controlled release that reduces the typical irritation of retinol. Retinal is also an intermediate step that converts faster into the active form retinoic acid than retinol.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSodium hyaluronate:\u003c\/strong\u003e A form of hyaluronic acid that retains moisture in the skin and supports the retinol effect. When using retinol, the skin can temporarily lose more moisture — sodium hyaluronate compensates for this and keeps the skin supple during the buildup period.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSqualane:\u003c\/strong\u003e A biomimetic lipid identical to a natural component of sebum. Strengthens the skin barrier and prevents moisture loss — especially valuable alongside retinol, which can temporarily weaken the barrier.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVitamin E (Tocopherol):\u003c\/strong\u003e A powerful antioxidant that supports the stability of retinol in the formula and protects the skin against free radicals. Also reduces the visibility of discolorations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGlycosaminoglycans:\u003c\/strong\u003e Natural molecular groups found in the skin known for their hydrating and restorative effects. Help keep the skin supple during the cell renewal cycle stimulated by retinol.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eL-proline:\u003c\/strong\u003e An amino acid that plays a role in the skin’s collagen structure. Supports the effect of retinol on skin firmness and contributes to a smoother texture.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSandalwood and lavender oil:\u003c\/strong\u003e Botanical ingredients that both soothe and contribute to a pleasant ritual. Sandalwood has a traditional use in skincare for calming irritated skin.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWitch hazel water and honeysuckle:\u003c\/strong\u003e Two gentle, soothing ingredients that support the skin barrier and help reduce skin sensitivity during retinol use.\u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eHow to use it\u003c\/h3\u003e\n\u003col class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eUse Serum 16 only in the evening — always wear SPF during the day\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCleanse and tone the skin according to the regular evening routine\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStart applying once every three nights in the first two weeks\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGradually build up to once every two nights and eventually daily\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eApply a coin-sized amount to clean, dry skin\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eOptionally finish with a moisturizing cream for extra comfort\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGive the skin 4 to 8 weeks to get used to retinol — small flakes are normal\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eSuitable for\u003c\/h3\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFirst signs of aging and visible fine lines\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eMature skin with deeper wrinkles and loss of firmness\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePigmentation spots and uneven skin tone\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFor those who poorly tolerate classic retinol due to sensitivity\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDry and sensitive skin that still wants results from a retinoid\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eNot suitable during pregnancy or breastfeeding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eWhat is the difference between Serum 16 and Cosmedix Define?\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eDefine is a lighter retinol treatment, suitable for those new to retinol or looking for maintenance. Serum 16 is highly concentrated (16% LG-Retinex) and aimed at visible results for mature skin or skin with clear signs of aging. Those just starting with retinol are better off starting with Define and possibly building up to Serum 16 later.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eWhen will I see the first results from Serum 16?\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eRetinol works on the natural cell renewal cycle, which lasts about 28 days. The first improvement in skin texture and radiance is usually visible after 4 to 6 weeks. For structural improvement of fine lines, wrinkles, and pigmentation spots, daily use for 8 to 12 weeks is needed. Consistency is crucial with retinol.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eWhy use only in the evening?\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eRetinol breaks down under UV radiation, which negates its effect. Additionally, retinol temporarily makes the skin more sensitive to the sun, increasing the risk of pigmentation and sun damage when used in the morning. In the evening, the skin also has the night to optimally recover and start the cell renewal cycle. Daily SPF the next day is non-negotiable.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eCan I use Serum 16 during pregnancy or breastfeeding?\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNo. Retinol and retinal are not recommended during either period due to possible risks to the child's development. For anti-aging during pregnancy and breastfeeding, alternatives like a peptide serum (Affirm or Cell ID) or a combination of niacinamide and vitamin C are safe choices.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eWhat should I do if my skin flakes or becomes irritated?\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eLight flaking and mild redness are normal in the first weeks — a sign that the skin is getting used to retinol. In that case, reduce the frequency to once every three nights and use a rich moisturizing cream. If irritation persists after three weeks, pause for a week and restart with a gentler buildup. In case of severe redness, burning, or pain, always stop and consult your skin therapist.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eCan I combine Serum 16 with other active ingredients like acids or vitamin C?\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNot on the same evening. Do not combine Serum 16 with AHA, BHA, or PHA acids or strong vitamin C formulas in the same routine — that overloads the skin. Classic schedule: Serum 16 in the evening, vitamin C and SPF in the morning. Or alternate active evening serums on different days of the week.\u003c\/p\u003e","brand":"Cosmedix","offers":[{"title":"Default Title","offer_id":56635832467787,"sku":null,"price":100.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/6908\/7307\/files\/fb8693d45554312ac1767ced80c97f2903a77288.jpg?v=1779224288","url":"https:\/\/webshop.glamskin.nl\/en\/products\/cosmedix-serum-16-30ml","provider":"Glam Skin Webshop","version":"1.0","type":"link"}