Serums are a skincare staple you'll find on shelves everywhere, from perfumeries to supermarkets. But amid creams and masks, their exact role can be unclear. We consulted Lionel De Benetti, Kiehl's consultant cosmetologist, to clarify what serums do, how to select the right one, and the best way to use them.
While serums are typically liquid and creams are thicker, the real distinction lies in formulation. Serums deliver a potent concentration of active ingredients in a lightweight texture for deeper penetration. Some brands offer cream-like serums for comfort, but they're not interchangeable with day or night creams—their actives are far more concentrated.
Thanks to their high active concentration, serums could stand alone, but pairing them with a moisturizing cream enhances comfort and efficacy. Always apply serum first, morning or evening, followed by cream. Avoid mixing them to prevent formula incompatibilities and ensure optimal absorption of the serum's benefits.
Select based on age, skin type, and concerns like spots, dullness, dehydration, or wrinkles. For beginners, Lionel De Benetti recommends an anti-aging or first-wrinkle serum—it's comprehensive, targeting hydration and tone. Results take time: skin cell renewal occurs every 28 days. Don't pair serum and cream from the same line with identical actives; variety amplifies benefits. For instance, skip vitamin C serum if your cream already features it.
It depends on your needs. A favorite serum can be a staple, but skin changes seasonally—nutrient-rich in winter, radiant in spring. Treat serums like cures during transitions or fatigue for a targeted boost.
Absolutely, as long as their actives complement each other. Brand-mixing is fine; focus on finish and synergy. Samples are ideal for testing textures and results.
With these insights from a Kiehl's expert, you're equipped to find your perfect serum!
