It depends on the type of keratin treatment you received. If you received a keratin treatment that is heat-activated, then you should avoid using any type of oil on your hair for at least 72 hours after the treatment. This is because the heat from the treatment seals the keratin into the hair, and applying oil too soon can interfere with this process and cause the treatment to wear off more quickly.
However, if you received a keratin treatment that is not heat-activated or after the initial 72-hour waiting period, then using oil on your hair can be beneficial. Oiling your hair can help keep it moisturized and nourished, which can promote healthy hair growth and prevent damage.
When oiling your hair after a keratin treatment, it's important to choose the right type of oil. Look for lightweight, non-greasy oils like argan oil, coconut oil, or jojoba oil, which can penetrate the hair shaft and provide deep hydration. Avoid heavy oils like castor oil or olive oil, which can weigh down the hair and cause buildup.
Overall, if you received a keratin treatment, it's important to follow the instructions provided by your stylist to ensure that the treatment lasts as long as possible. If you have any questions or concerns about using oil on your hair after the treatment, be sure to ask your stylist for guidance.