Hair serums are designed to address specific hair concerns, like frizz, dryness, dullness, or damage. They can smooth hair, add shine, detangle, protect against heat styling, and even help repair split ends.

Hair serum can be a valuable addition to your hair care routine, providing targeted treatment and enhancing the overall health and appearance of your hair. Whether you're looking to tame frizz, boost shine, or protect against damage, a well-chosen serum can make a noticeable difference.

The ideal hair serum for you depends on your hair type and specific concerns. Fine hair benefits from lightweight formulas, while thicker or coarser hair can handle richer serums. Consider your needs, whether it's frizz control, shine enhancement, or heat protection.

The "best" hair serum is subjective and depends on individual hair needs. Kérastase offers a variety of high-quality serums tailored to different concerns. To determine which is best for you, explore the product descriptions and explore our hair quiz, or consult with a hair professional.

Apply a small amount of serum to damp or dry hair, focusing on the mid-lengths and ends. Avoid applying directly to the scalp unless the product specifies otherwise.

Hair serum can be applied before or after styling, depending on the specific product and desired results. Some serums are best used before heat styling for protection, while others can be applied after styling for added shine and control.

Both hair oils and serums offer unique benefits. Oils provide deep nourishment and smoothing, while serums offer targeted treatments for specific concerns. The best choice depends on your individual hair needs.

While serums primarily focus on improving hair's appearance and manageability, a healthy scalp environment is essential for optimal hair growth. Kérastase offers targeted scalp serums that can contribute to healthy hair growth by nourishing the scalp. For specific hair growth concerns, it is best to consult with a hair care professional.

Whether to apply serum to wet or dry hair depends on the specific product and desired result.

Some hair serums offer heat protection, shielding your hair from damage caused by styling tools.

Kérastase offers serums specifically formulated to combat frizz and smooth unruly hair.

While hair serums primarily address hair manageability and appearance, a healthy scalp is essential for optimal hair growth. Consider Kérastase scalp serums which contribute to scalp health and may support healthy hair growth.

Kérastase offers serums designed to help repair and prevent split ends, improving the overall appearance of your hair. Keep in mind that while serums can help manage split ends, regular trims are the most effective solution.

Whether you can use hair serums daily depends on your hair type and the specific product. Some lightweight serums are suitable for daily use, while richer formulas might be best used less frequently.