Serums

A serum is a concentrated product designed to meet a specific skin need, such as lack of hydration, loss of firmness, a dull complexion or the appearance of wrinkles. Its generally fine texture allows it to be applied directly to clean skin, before the cream. In some cases, the serum can also prepare the skin to receive the products that follow and strengthen the overall effectiveness of the routine, in particular by bringing hydration or actives that complement those of the cream. The most important thing is to choose the one that matches the priority need of the moment and to use it regularly.

A serum is applied to clean skin, after the eye contour and before the face cream. Its lighter texture allows it to be applied directly to the skin before richer products. The recommended order is generally: cleansing, eye contour, serum, then cream. In the morning, the routine ends with sun protection. A face oil is applied after water-based products; depending on its formula and the skin's needs, it can replace the cream or complete the evening routine.

A few drops are generally enough for the face and neck. Apply the serum to clean skin, then spread it gently with your fingertips, without excessive rubbing. Let the serum settle for a few moments before applying the next product. A larger amount does not necessarily improve its effectiveness and can make layering textures less pleasant. Regular use matters more than the amount of product.

Yes, several serums can be combined when their actions are complementary and the skin tolerates them well. A hydrating serum can, for example, be used with a serum designed for firmness. For layering, apply the most fluid texture first, then the richest product. It is still preferable to start with the serum that meets the skin's priority need, rather than piling up several actives without a clear goal. Another option is to alternate serums: a hydrating serum in the morning and a nourishing or regenerating serum in the evening.

Yes, many serums can be used morning and evening, depending on their formula and the skin's needs. A hydrating serum fits easily into both routines, while a more nourishing product or one designed to support the skin overnight will naturally be reserved for the evening. The Hyaluronic Concentrate and The Lift & Firmness Resveratrol Serum can find their place in a daily routine, morning and evening. The Night Elixir Phyto-Retinol Oil was designed for evening use.

A water-based serum generally has a light gel texture and provides a targeted response to a specific need, such as hydration or firmness. A face oil, richer in lipids, contributes more to the skin's nourishment, suppleness and comfort. The cream helps maintain hydration and preserve skin comfort throughout the day or night. A light serum can sometimes be used alone when the skin is naturally comfortable or when the climate is warm. An oil can replace the evening cream or complete the routine when the skin is looking for more nourishment.

The Hyaluronic Concentrate is intended first and foremost for dehydrated, uncomfortable skin or skin marked by fine dehydration lines. The Lift & Firmness Resveratrol Serum is aimed more at skin looking for an action on firmness, tone and the visible signs of aging. The Night Elixir Phyto-Retinol Oil suits skin in search of nourishment, comfort and radiance. When several needs coexist, start with the one that bothers you most today. The HUYGENS PARIS skin quiz can also help you build a personalized, simple and coherent routine.

HUYGENS serums were formulated around actives chosen to meet different needs. The Hyaluronic Concentrate combines two molecular weights of hyaluronic acid to deliver a complementary action on hydration, suppleness and the appearance of dehydration lines. The Lift & Firmness Resveratrol Serum contains resveratrol, a plant-based antioxidant active. The Night Elixir Oil contains Revinage®, a botanical active commonly presented as a phyto-retinol. It does not contain retinol and should not be confused with it. Measured results and conditions of use are detailed on each product page.