Masque Hydra Apaisant Hair Mask

The formula contains an ingredient derived from coconuts. According to the FDA, coconuts are considered tree nuts although they are not typically restricted in diets of people with tree nut allergies.

While every ingredient we use in our products is evaluated for safety, we do not specifically test our products on women who are pregnant or nursing. Kiehl's ensures there is a substantial information supporting the safety of our products when used as directed by consumers. However, as there could be certain ingredients that physicians may not recommend for use during pregnancy and nursing, we always recommend that you discuss this with your physician and follow their advice.

Yes, as it can be quite helpful in rebalancing the natural oils of an oilier skin type, as these skin types are often dehydrated or stripped of their natural oils when using strong acne products. The skin in these cases reacts by over-producing natural sebum, resulting in an even oilier surface and/or continued breakout. The application of our Midnight Recovery Concentrate a few times a week in these cases could help prevent this kind of imbalance “over adjustment” from happening. The formula is non-comedogenic/ non-acnegenic. This means it has been demonstrated not to clog pores.

No, because they each deliver different results. A moisturizer hydrates skin, helps strengthen the moisture barrier and locks in the powerful benefits of a concentrated serum and a face oil like, Midnight Recovery Concentrate. We recommend using any of our Kiehl’s face moisturizer on top of this product, to enhance or address any additional concerns.

For layering, it is best to treat Midnight Recovery Concentrate as the "moisturizer" step, which means that we should recommend that it be applied on top of a serum or a Dermatologist Solutions treatment product, like Powerful-Strength Line-Reducing Concentrate.

Midnight Recovery Concentrate is formulated with both Botanical and Essential oils. Botanical oils are oils obtained from plants that are fatty, dense and non-volatile, such as olive and sweet almond oil. Such plants contain a significant amount of proteins, vitamins and skin compatible lipids like Squalane. Botanical oils strengthen the skin barrier, to prevent skin from water loss and diminish penetration of environmental aggressors, while essential oils protect the skin from oxidative and environmental stress. An essential oil is a concentrated liquid containing volatile aroma compounds from plants, which are called aromatic herbs or aromatic plants. The term "essential" indicates that the oil carries the distinctive scent (essence) of the plant. Most commonly, the essence is extracted from the plant using a technique called steam distillation. Naturally cultivated and steam-distilled, these pure oils are extracted from natural sources.

Squalane helps restore skin’s natural moisture balance to keep it extra soft and supple. Evening Primrose Oil is known to help maintain skin hydration and elasticity. Sunflower oil is a good source of essential fatty acids, this oil adds a protective barrier and helps the skin to retain moisture and resist infection. Lavender Oil helps to stimulate skin’s repair functions and improve skin tone creating a brighter more radiant look. Rosemary Essential Oil helps to retain moisture, improve and brighten skin tone and relax the muscles. Geranium Essential Oil helps to detoxify and enhance circulation while balancing the skin’s oil production. Rose Essential Oil helps to improve skin-tone and to soften and condition the skin while combatting environmental damage and helps to replenish skin oils.

They are very close to each other in molecular structure as well as in benefits (they both help improve and protect the skin’s natural lipid barrier – and they both are also naturally appropriate for sensitive skin), and the skin does produce both of them naturally in its sebum. Squalene also provides natural antioxidant benefits. However, Squalene cannot be re-produced outside of the skin, whereas Squalane is naturally produced outside.

Midnight Recovery Concentrate may also be used during the day, if desired. Although, it is more ideal for use at nighttime, as we formulated it to help the skin work more effectively during its nightly repairing functions (in the day time, more protective functions are needed). And no, there is no specific ingredient that makes it only useable at night.

Yes, it replenishes overnight to smooth skin’s texture, boost radiance and improve fine lines and wrinkles.