- A great conditioner to smooth and tame unmanageable, unruly and frizzy hair. Goldwell presents Kerasilk Control: long lasting transformation into perfectly smooth and soft hair for up to 3-5 months with Glyoxylic Acid, Keratin and Color-Caring Silk. High-performing KeraShapeTechnology actively interacts with the hair’s structure. During the Keratin Treatment it penetrates into the hair and creates new keratin bonds to re-shape the hair structure. The surface is long-lasting smoothened and softened. The new Kerasilk with Keratransform Technology™ (KT³™) fuses the power of three superior ingredients to deliver powerful transformations. The first two ingredients — engineered Keratin and lightweight silk — contribute to structural support and long-lasting color protection. Together, these form the foundation for all Kerasilk formulas. The third advanced ingredient, inspired by skin care scene, delivers specialized results specific to each of the Kerasilk four segments. Together, the combination of ingredients propels Kerasilk to the forefront of the industry, delivering the perfect transformation of beauty, strength, and protection. This impressive, multi-pronged approach propels Kerasilk to the forefront of luxury hair care innovation — the foundation for the perfect transformation of beauty, strength, and protection.