Hair oils generally provide intense nourishment and smoothing, while hair serums offer targeted treatment for specific hair concerns like frizz, split ends, or heat protection. Kérastase offers a wide range of both hair oils and hair serums to address your unique hair needs. Explore our hair quiz to find the perfect match for your hair type and desired results.

Check the packaging for the PAO (Period After Opening) symbol, which indicates the recommended usage period after opening the product. Generally, it is recommended to use the product within 12-24 months of opening.

It truly depends on your individual hair needs and goals. Think of them as targeted treatments that complement each other. Hair oils excel at providing deep nourishment, smoothing frizz, adding shine, and improving overall hair health. They're fantastic for dry, coarse, or damaged hair that needs intense hydration and conditioning.

Hair serums, on the other hand, usually offer more specific benefits like heat protection, frizz control, detangling, or reducing breakage. They tend to be lighter than oils and are suitable for most hair types, including finer hair that might be weighed down by heavier oils.

Many people find that incorporating both an oil and a serum into their routine delivers the best results. For example, you could use a lightweight oil for smoothing and nourishment, followed by a serum before styling.

Selecting the ideal product depends on your hair type and hair concerns. Fine hair benefits from lightweight hair oils and hair serums, while thick or coarse hair can handle richer formulas. Consider your specific hair needs like frizz control, shine enhancement, or damage control when choosing. Our website filters and product descriptions can guide you to the perfect match or explore our hair quiz to find the perfect match for your hair type and desired results.

Start with a small amount, typically 1-2 pumps, and add more if needed. Too much product can weigh hair down. Focus application on the mid-lengths and ends, avoiding the roots unless specifically directed.

Yes, you can layer certain Kérastase oils and serums for enhanced benefits. For example, apply a lightweight hair oil for smoothing followed by protecting hair serum before styling. Take our hair quiz for optimal layering combinations.

Hair oils and serums can be applied to damp or dry hair, depending on the product and desired effect. Some are best used before styling for heat protection, while others can be applied after styling for added hair shine and smoothness.

Yes, Kérastase hair oils and serums are generally safe for color-treated hair.

Kérastase utilizes a blend of precious oils, plant extracts, and advanced technologies in its formulas. These ingredients provide various benefits, including nourishment, shine, smoothness, frizz control, and heat protection.

Kérastase hair oils and hair serums are available on our official website, as well as at authorized salons and retailers. Use our salon locator to find a Kérastase salon near you.