{"id":9747,"date":"2026-08-27T16:01:48","date_gmt":"2026-08-27T08:01:48","guid":{"rendered":"https:\/\/www.zleygroup.com\/?p=9747"},"modified":"2026-08-27T16:01:48","modified_gmt":"2026-08-27T08:01:48","slug":"the-spot-disposal-expert","status":"publish","type":"post","link":"https:\/\/www.zleygroup.com\/ja\/the-spot-disposal-expert\/","title":{"rendered":"\u300c\u30b9\u30dd\u30c3\u30c8\u51e6\u5206\u30a8\u30ad\u30b9\u30d1\u30fc\u30c8\u300d\u201c"},"content":{"rendered":"

ZLEY\u00aeUP \u2013 Undecylenoyl Phenylalanine (CAS 175357-18-3):<\/strong> <\/strong><\/p>\n\n\n\n

\u300c\u30b9\u30dd\u30c3\u30c8\u51e6\u5206\u30a8\u30ad\u30b9\u30d1\u30fc\u30c8\u300d\u201c<\/strong><\/strong><\/p>\n\n\n\n

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ZLEY\u00aeUP (INCI: Undecylenoyl Phenylalanine), also known as Sepiwhite<\/strong>, is a premium skin-brightening agent used in high\u2011end brightening and spot\u2011correcting products such as SK-II and OLAY.<\/p>\n\n\n\n

As a structural analog of \u03b1-melanocyte-stimulating hormone (\u03b1-MSH), Undecylenoyl Phenylalanine competitively binds to MC1-R receptors on melanocytes, effectively blocking the cAMP\/PKA signaling pathway. This action reduces the expression of key melanogenic enzymes and directly inhibits tyrosinase activity, thereby significantly decreasing melanin production for visible brightening and spot-fading results.<\/p>\n\n\n\n

ZLEY\u00ae is a professional supplier of Undecylenoyl Phenylalanine (CAS 175357-18-3), providing stable quality, technical support, and global delivery covering over 60 countries.<\/p>\n\n\n\n

ZLEY\u00aeUP Product Information<\/strong><\/p>\n\n\n\n

\u30d1\u30e9\u30e1\u30fc\u30bf<\/td>\u4ed5\u69d8<\/td><\/tr>
INCI\u540d<\/strong><\/td>\u30a6\u30f3\u30c7\u30b7\u30ec\u30ce\u30a4\u30eb\u30d5\u30a7\u30cb\u30eb\u30a2\u30e9\u30cb\u30f3<\/td><\/tr>
CAS\u756a\u53f7<\/strong><\/td>175357-18-3<\/td><\/tr>
\u5916\u89b3<\/strong><\/td>White to off-white powder, characteristic odor<\/td><\/tr>
\u63a8\u5968\u4f7f\u7528\u6cd5<\/strong><\/td>0.1 \u2013 2.0%<\/td><\/tr>
\u6eb6\u89e3\u5ea6<\/strong><\/td>\u6cb9\u6eb6\u6027<\/td><\/tr>
\u52a0\u5de5<\/strong><\/td>Add directly to the oil phase with heating to dissolve<\/td><\/tr>
Key Benefit<\/strong><\/td>Brightening & spot correction<\/td><\/tr>
Mechanism<\/strong><\/td>\u03b1-MSH antagonist; competitively binds to MC1-R; inhibits cAMP\/PKA melanogenic signaling pathway<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Is ZLEY\u00aeUP Safe?<\/strong><\/p>\n\n\n\n

Yes. ZLEY\u00aeUP is considered safe for cosmetic use under normal, reasonable, and foreseeable conditions at concentrations \u6700\u59272.0%<\/strong> in both leave-on and rinse-off products (for rinse-off, the same limit applies by referencing leave-on usage data).<\/p>\n\n\n\n

\u88fd\u54c1\u7528\u9014<\/strong><\/p>\n\n\n\n

In cosmetics and skincare, ZLEY\u00aeUP functions primarily as a \u76ae\u819a\u30b3\u30f3\u30c7\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\u5264<\/strong>. Its lipid-amino acid structure provides excellent skin affinity, making it suitable for sensitive skin in brightening, spot-correcting, and antioxidant formulations, as well as compound liposome development. It has become a benchmark ingredient in efficacy-driven skincare. By combining it with niacinamide, adenosine, and other actives, formulators can build full-pathway brightening systems that deliver both safety and high performance, continuously empowering brands.<\/p>\n\n\n\n

Why Source ZLEY\u00aeUP from ZLEY\u00ae?<\/strong><\/p>\n\n\n\n

With over 20 years of dedicated experience, ZLEY\u00ae has evolved into a modern enterprise integrating R&D, production, quality control, and sales. We are committed to providing the highest quality personal care raw materials, semi-finished products, and customized formulation solutions to meet diverse customer needs. Our global delivery network ensures reliable service to customers in over 60 countries.<\/p>\n\n\n\n

E\u30e1\u30fc\u30eb<\/strong> services@zleygroup.com<\/u><\/a><\/p>\n\n\n\n

\u3069\u306e\u3088\u3046\u306a\u30c6\u30af\u30cb\u30ab\u30eb\u30b5\u30dd\u30fc\u30c8\u304c\u53d7\u3051\u3089\u308c\u307e\u3059\u304b\uff1f<\/strong><\/p>\n\n\n\n

\u5c02\u9580\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u3068\u3057\u3066\u3001ZLEY\u00ae\u306f\u88fd\u54c1\u305d\u306e\u3082\u306e\u3092\u8d85\u3048\u305f\u4fa1\u5024\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n