Description
Alpha-arbutin is a naturally derived glycoside composed of hydroquinone and glucose, linked in the alpha configuration that offers superior stability and efficacy compared with the more common beta form. It acts as a competitive inhibitor of tyrosinase, the key enzyme in melanin biosynthesis, thereby reducing melanin production and helping to visibly lighten dark spots, post-inflammatory pigmentation and uneven skin tone.
Because it acts gently on melanocytes without destroying them, alpha-arbutin delivers a brightening effect with a favorable safety profile, making it suitable for sensitive skin and for daytime use without significant irritation. Its excellent water solubility and photostability allow it to be formulated into a wide range of products, including serums, creams, lotions, emulsions and masks.
Our cosmetic-grade alpha-arbutin is synthesized to high purity with a minimum assay of 98%, and is controlled for related substances including hydroquinone and beta-arbutin. Recommended use levels range from 0.5% to 2.0%, often combined with niacinamide, vitamin C or azelaic acid for enhanced brightening and antioxidant support.
Each lot is verified for assay, melting point, heavy metals and microbiological quality, with results provided in the certificate of analysis. Our technical support team can advise on solubilization, pH optimization and stability testing.
With its combination of efficacy, stability and gentleness, alpha-arbutin is a preferred choice for whitening and brightening cosmetic formulations, giving developers a reliable active for products that promise visible skin-evening results while meeting the safety expectations of modern consumers.