The rich kerasilk control conditioner by Goldwell tames unruly, frizzy hair and cares intensively. The formula is enriched with keratin and silk essence, which smoothes the rough hair structure instantly and makes hair easy to comb. The control conditioner gives silky suppleness and a brilliant shine. Not only does hair feel healthy, it also looks that way. The included kerashape technology penetrates deep into hair and builds new keratin bridges. So even the most unruly hair stays silky for a long time.with keratin and liquid silk for unmanageable, unruly and frizzy hair. Reduces waves and enhances smoothness for up to 4-6 weeks