{"id":41050,"date":"2025-11-07T11:57:02","date_gmt":"2025-11-07T11:57:02","guid":{"rendered":"https:\/\/mostincrediblevalue.com\/beauty\/index.php\/product\/kiehls-since-1851-ultra-pure-high-potency-serum-9-8-glycolic-acid-1-oz\/"},"modified":"2025-11-07T11:57:03","modified_gmt":"2025-11-07T11:57:03","slug":"kiehls-since-1851-ultra-pure-high-potency-serum-9-8-glycolic-acid-1-oz","status":"publish","type":"product","link":"https:\/\/mostincrediblevalue.com\/beauty\/index.php\/product\/kiehls-since-1851-ultra-pure-high-potency-serum-9-8-glycolic-acid-1-oz\/","title":{"rendered":"Kiehl’s Since 1851 Ultra Pure High-Potency Serum 9.8% Glycolic Acid 1 oz."},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"

What It Is:A concentrated 9.8% Glycolic Acid serum made with only 7 ingredients that visibly smoothes skin texture and boosts skin’s glow.What It Does:With 9.8% Glycolic Acid, this serum is formulated with just seven ingredients to help visibly refine and smooth skin’s texture and boost skin’s glow. Free of fragrance and colorants, this concentrated serum is minimally formulated for skin absorption and smoothing effect.How To Use It:In the evening, apply 2-3 drops to clean, dry skin.Clinical Res<\/p>\n","protected":false},"featured_media":0,"comment_status":"closed","ping_status":"open","template":"","meta":[],"product_brand":[],"product_cat":[284,282,283,570],"product_tag":[194],"class_list":{"0":"post-41050","1":"product","2":"type-product","3":"status-publish","5":"product_cat-cosmetics","6":"product_cat-health-beauty","7":"product_cat-personal-care","8":"product_cat-skin-care","9":"product_tag-kiehls-since-1851","11":"first","12":"instock","13":"product-type-external","14":"add-to-wishlist-after_add_to_cart"},"yoast_head":"\nKiehl's Since 1851 Ultra Pure High-Potency Serum 9.8% Glycolic Acid 1 oz.<\/title>\n<meta name=\"description\" content=\"Kiehl's Since 1851 Ultra Pure High-Potency Serum 9.8% Glycolic Acid 1 oz. - What It Is:A concentrated 9.8% Glycolic Acid serum made with only 7 ingredients that visibly smoothes skin texture and boosts skin's glow.What It Does:With 9.8% Glycolic Acid, this serum is formulated with just seven ingredients to help visibly refine and smooth skin's texture and boost skin's glow. Free of fragrance and colorants, this concentrated serum is minimally formulated for skin absorption and smoothing effect.How To Use It:In the evening, apply 2-3 drops to clean, dry skin.Clinical Res\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mostincrediblevalue.com\/beauty\/index.php\/product\/kiehls-since-1851-ultra-pure-high-potency-serum-9-8-glycolic-acid-1-oz\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kiehl's Since 1851 Ultra Pure High-Potency Serum 9.8% Glycolic Acid 1 oz.\" \/>\n<meta property=\"og:description\" content=\"Kiehl's Since 1851 Ultra Pure High-Potency Serum 9.8% Glycolic Acid 1 oz. - What It Is:A concentrated 9.8% Glycolic Acid serum made with only 7 ingredients that visibly smoothes skin texture and boosts skin's glow.What It Does:With 9.8% Glycolic Acid, this serum is formulated with just seven ingredients to help visibly refine and smooth skin's texture and boost skin's glow. Free of fragrance and colorants, this concentrated serum is minimally formulated for skin absorption and smoothing effect.How To Use It:In the evening, apply 2-3 drops to clean, dry skin.Clinical Res\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mostincrediblevalue.com\/beauty\/index.php\/product\/kiehls-since-1851-ultra-pure-high-potency-serum-9-8-glycolic-acid-1-oz\/\" \/>\n<meta property=\"og:site_name\" content=\"Health & Beauty\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-07T11:57:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mostincrediblevalue.com\/beauty\/wp-content\/uploads\/2023\/11\/12744707_fpx.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"300\" \/>\n\t<meta property=\"og:image:height\" content=\"375\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/mostincrediblevalue.com\\\/beauty\\\/index.php\\\/product\\\/kiehls-since-1851-ultra-pure-high-potency-serum-9-8-glycolic-acid-1-oz\\\/\",\"url\":\"https:\\\/\\\/mostincrediblevalue.com\\\/beauty\\\/index.php\\\/product\\\/kiehls-since-1851-ultra-pure-high-potency-serum-9-8-glycolic-acid-1-oz\\\/\",\"name\":\"Kiehl's Since 1851 Ultra Pure High-Potency Serum 9.8% Glycolic Acid 1 oz.\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/mostincrediblevalue.com\\\/beauty\\\/#website\"},\"datePublished\":\"2025-11-07T11:57:02+00:00\",\"dateModified\":\"2025-11-07T11:57:03+00:00\",\"description\":\"Kiehl's Since 1851 Ultra Pure High-Potency Serum 9.8% Glycolic Acid 1 oz. - What It Is:A concentrated 9.8% Glycolic Acid serum made with only 7 ingredients that visibly smoothes skin texture and boosts skin's glow.What It Does:With 9.8% Glycolic Acid, this serum is formulated with just seven ingredients to help visibly refine and smooth skin's texture and boost skin's glow. 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