{"id":27362,"date":"2026-04-17T17:50:14","date_gmt":"2026-04-17T15:50:14","guid":{"rendered":"https:\/\/tretinoins.com\/nine-less-b-boost-1-kojic-acid-serum-30ml\/"},"modified":"2026-04-17T17:50:14","modified_gmt":"2026-04-17T15:50:14","slug":"nine-less-b-boost-1-kojic-acid-serum-30ml","status":"publish","type":"product","link":"https:\/\/tretinoins.com\/fr\/nine-less-b-boost-1-kojic-acid-serum-30ml\/","title":{"rendered":"Nine Less, B-Boost 1% Kojic Acid Serum, 30ml"},"content":{"rendered":"<h1>Nine Less, B-Boost 1% Kojic Acid Serum, 30ml<\/h1>\n<p>Nine Less, B-Boost 1% Kojic Acid Serum, 30ml helps support a more even complexion and visible reduction of dark spots. This serum contributes to brighter-looking skin while delivering hydration and antioxidant protection.<\/p>\n<h2>Unique features<\/h2>\n<ul>\n<li>Formula: The Nine Less, B-Boost 1% Kojic Acid Serum combines kojic acid with niacinamide and tranexamic acid for targeted brightening. The lightweight formula is designed for layering in daily routines.<\/li>\n<li>Concentration: The product contains 1% kojic acid as a key active to address pigmentation. The concentration aims to provide results with careful use and sun protection.<\/li>\n<li>Volume: The serum is supplied in a 30ml bottle suitable for regular use. This size fits both at-home and travel routines.<\/li>\n<\/ul>\n<h2>Main benefits<\/h2>\n<ul>\n<li>Brightening: The Nine Less, B-Boost 1% Kojic Acid Serum works to reduce the appearance of dark spots and uneven tone. Regular use may contribute to a more radiant complexion when combined with sunscreen.<\/li>\n<li>Hydration: Glycerin, panthenol, and hyaluronic-supporting ingredients help with skin moisture. Hydration supports a healthier barrier and improved texture.<\/li>\n<li>Protection: Antioxidant components help defend against environmental stressors. This care complements other revitalization and maintenance steps.<\/li>\n<\/ul>\n<h2>Key ingredients<\/h2>\n<ul>\n<li>Kojic: Kojic acid at 1% targets melanin-related discoloration and supports brightening. It is commonly used for topical fading effects.<\/li>\n<li>Niacinamide: Niacinamide at significant levels helps reduce pigmentation and support barrier function. This ingredient also contributes to even skin tone and care.<\/li>\n<li>Tranexamic: Tranexamic acid assists in reducing hyperpigmentation and dark spots. It works synergistically with kojic acid and niacinamide for revitalization.<\/li>\n<\/ul>\n<h2>How to use<\/h2>\n<ul>\n<li>Morning: Apply a few drops of the serum to cleansed skin and gently pat until absorbed. Follow with moisturizer and broad-spectrum sunscreen for protection.<\/li>\n<li>Evening: Use in the evening routine on clean skin, layering under moisturizers. Avoid mixing with strong exfoliating acids without guidance.<\/li>\n<li>Patch test: Perform a patch test prior to full use to confirm compatibility. Discontinue if irritation occurs and consult a professional.<\/li>\n<\/ul>\n<h2>How does it work?<\/h2>\n<ul>\n<li>Inhibition: The Nine Less, B-Boost 1% Kojic Acid Serum helps inhibit melanin formation through kojic acid activity. This contributes to a gradual reduction in visible spots with consistent use.<\/li>\n<li>Regulation: Niacinamide helps regulate pigment transfer and supports barrier repair. Together the ingredients promote brighter, more even-looking skin.<\/li>\n<li>Support: Antioxidants like glutathione and tocopherol support skin resilience. These components aid in overall care and revitalization.<\/li>\n<\/ul>\n<h2>Directions for use<\/h2>\n<ul>\n<li>Step 1: Cleanse and tone before applying the serum to dry skin. Use 2\u20133 drops and spread evenly over target areas.<\/li>\n<li>Step 2: Follow with a moisturizer to seal in hydration and protect the barrier. Always apply SPF in daytime after using brightening actives.<\/li>\n<li>Step 3: Integrate gradually into routines, starting every other day if you have sensitive skin. Monitor skin response and adjust frequency as needed.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Brightening serum with 1% kojic acid plus niacinamide and tranexamic acid to help even skin tone and hydrate.<\/p>\n","protected":false},"featured_media":23524,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_cat":[2763,1654,2764,1655],"product_tag":[],"class_list":["post-27362","product","type-product","status-publish","has-post-thumbnail","product_cat-face-serums","product_cat-korean-cosmetics","product_cat-serums","product_cat-skincare","pa_brands-nine-less","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/tretinoins.com\/fr\/wp-json\/wp\/v2\/product\/27362","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tretinoins.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/tretinoins.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/tretinoins.com\/fr\/wp-json\/wp\/v2\/comments?post=27362"}],"version-history":[{"count":0,"href":"https:\/\/tretinoins.com\/fr\/wp-json\/wp\/v2\/product\/27362\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tretinoins.com\/fr\/wp-json\/wp\/v2\/media\/23524"}],"wp:attachment":[{"href":"https:\/\/tretinoins.com\/fr\/wp-json\/wp\/v2\/media?parent=27362"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/tretinoins.com\/fr\/wp-json\/wp\/v2\/product_cat?post=27362"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/tretinoins.com\/fr\/wp-json\/wp\/v2\/product_tag?post=27362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}