{"product_id":"retinol-collagen-neck-firming-cream","title":"Retinol Collagen Neck Firming Cream","description":"\u003ch3\u003eTargeted neck care powered by 6-year-aged red ginseng and 100-dalton collagen\u003c\/h3\u003e\u003cp\u003eThis neck cream is designed to visibly improve the depth of neck lines. Formulated with 6-year-aged Korean red ginseng extract as its base, it features nano-collagen broken down to just 100 daltons. These ultra-fine particles—much smaller than standard collagen (500–3,000 daltons)—are engineered to penetrate deeper into the skin. The formula also includes 100 PPM retinol, niacinamide for tone correction, copper tripeptide-1 for elasticity support, and ceramides to reinforce the skin barrier, delivering comprehensive care for both firmness and texture across the neck area.\u003c\/p\u003e\u003ch3\u003eClinically measured results after 2 weeks\u003c\/h3\u003e\u003cp\u003eA 2-week clinical study conducted on 20 adults aged 35–60 showed meaningful improvements:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e17.9% reduction in neck line depth\u003c\/li\u003e\n\u003cli\u003e6.56% improvement in neck elasticity\u003c\/li\u003e\n\u003cli\u003e22.98% improvement in neck lifting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe formula also received a non-irritating rating with a 0.00 irritation index in a sensitive skin patch test. Despite containing retinol, the beginner-friendly concentration (100 PPM) makes it approachable even for first-time retinol users.\u003c\/p\u003e\u003ch3\u003eHow to use a retinol-infused product\u003c\/h3\u003e\u003cp\u003eFor the first two weeks, use every other day to allow your skin time to adjust. Once your skin has adapted, daily use is fine. It can be applied morning or evening, but if used during the day, sunscreen is essential. When layering with vitamin C products, apply vitamin C in the morning and reserve this neck cream for evening. Dispense one to two rice grains' worth of product and gently massage upward from the neck toward the collarbone in a rolling motion.\u003c\/p\u003e","brand":"josuntherapy","offers":[{"title":"1개","offer_id":41320763523136,"sku":"2795-1","price":34.96,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/8825\/4528\/files\/58701_202603111016430739_74284.png?v=1785285078","url":"https:\/\/piyonna.com\/products\/retinol-collagen-neck-firming-cream","provider":"PIYONNA","version":"1.0","type":"link"}