Alps Goodness Rosemary Water is marketed as sulphate‑free, paraben‑free, and silicone‑free, which makes it less likely to interfere with keratin‑treated hair. However, there is limited research on its specific use after keratin treatments, and product effects can vary depending on the type of keratin treatment you had. Since keratin‑treated hair needs gentle care, it is advisable to use such products cautiously and consult your stylist to confirm whether regular application is suitable for your hair type.