{"id":2254,"date":"2025-06-17T13:48:25","date_gmt":"2025-06-17T05:48:25","guid":{"rendered":"https:\/\/www.zleygroup.com\/?post_type=product&p=2254"},"modified":"2026-10-12T17:41:28","modified_gmt":"2026-10-12T09:41:28","slug":"4%e3%83%96%e3%83%81%e3%83%ab%e3%83%ac%e3%82%be%e3%83%ab%e3%82%b7%e3%83%8e%e3%83%bc%e3%83%ab","status":"publish","type":"product","link":"https:\/\/www.zleygroup.com\/ja\/products\/4-butylresorcinol\/","title":{"rendered":"\u30ba\u30ec\u30a4\u00aeBRC"},"content":{"rendered":"

ZLEY\u00ae BRC (4-Butylresorcinol; CAS 18979-61-8)<\/strong> is a powder ingredient for cosmetic formulations designed to improve the appearance of uneven skin tone. Review the current batch COA and TDS for grade-specific identity, purity and handling information. Finished-product performance and suitable use level depend on the complete formula and its safety and stability assessment.<\/p>\n

For a closer look at the ingredient’s published research and practical formulation checks, read our 4-Butylresorcinol formulation guide<\/a>. Request a sample and current technical documents from ZLEY\u00ae before qualifying a grade.<\/p>","protected":false},"excerpt":{"rendered":"

\n\n\n\n\n\n\n\n
\u8868\u793a\u756a\u53f7:<\/strong><\/td>\n4-\u30d6\u30c1\u30eb\u30ec\u30aa\u30b7\u30ce\u30fc\u30eb<\/td>\n<\/tr>\n
\u30d7\u30ed\u30d1\u30c6\u30a3:<\/strong><\/td>\n\u30ec\u30be\u30eb\u30b7\u30ce\u30fc\u30eb\u8a98\u5c0e\u4f53\u3002\u30c1\u30ed\u30b7\u30ca\u30fc\u30bc\u6d3b\u6027\u3068\u30e1\u30e9\u30cb\u30f3\u9178\u5316\u3092\u963b\u5bb3\u3057\u307e\u3059\u3002\u4ee3\u8b1d\u3068\u30c1\u30ed\u30b7\u30ca\u30fc\u30bc\u5206\u89e3\u3092\u4fc3\u9032\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
\u5916\u89b3\uff1a<\/strong><\/td>\n\u767d\u8272\u307e\u305f\u306f\u30aa\u30d5\u30db\u30ef\u30a4\u30c8\u8272\u306e\u7c89\u672b<\/td>\n<\/tr>\n
\u63a8\u5968\u7528\u91cf:<\/strong><\/td>\n0.1-2.2%<\/td>\n<\/tr>\n
\u6eb6\u89e3\u5ea6:<\/strong><\/td>\n\u6cb9\u306b\u6eb6\u3051\u3001\u30a2\u30eb\u30b3\u30fc\u30eb\u306b\u6eb6\u3051\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>","protected":false},"featured_media":8111,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[15],"product_tag":[],"class_list":["post-2254","product","type-product","status-publish","has-post-thumbnail","product_cat-brightening","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.zleygroup.com\/ja\/wp-json\/wp\/v2\/product\/2254","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zleygroup.com\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.zleygroup.com\/ja\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zleygroup.com\/ja\/wp-json\/wp\/v2\/media\/8111"}],"wp:attachment":[{"href":"https:\/\/www.zleygroup.com\/ja\/wp-json\/wp\/v2\/media?parent=2254"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.zleygroup.com\/ja\/wp-json\/wp\/v2\/product_brand?post=2254"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.zleygroup.com\/ja\/wp-json\/wp\/v2\/product_cat?post=2254"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.zleygroup.com\/ja\/wp-json\/wp\/v2\/product_tag?post=2254"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}