What It Is
With ingredients brewed for 120 hours, this 99%** natural formula with Ferulic Acid, Lactic Acid (AHA) & Squalane provides powerful antioxidant protection to visibly smooth and even skin’s texture and tone, reduce fine lines and leave skin with a healthy-looking glow.**Results based on expert grading in a 4-week consumer test on 60 subjects. **We consider ingredients to be naturally derived if they retain more than 50% of their molecular structure after being processed from a natural source. In 7 days, visibly:Boost glowSmooth textureReduce fine linesIn a consumer study of 60 subjects*:92% agree skin looks hydrated92% agree skin looks rejuvenated90% agree skin felt smoother88% agree skin texture looks refined87% agree skin looks healthier85% agree skin looks more even toned*Results based on expert grading in a 4-week consumer test on 60 subjects.
What It’s Good For
Absorbs quickly to gently remove dull surface skin for a visibly smoother, even, and glowing complexionProvides efficacious antioxidants for skin to help support skin’s natural recovery process and defend against skin-aging free radicalsVisibly reduces fine lines and helps to prevent early signs of aging Primes skin to help better receive serums and/or moisturizers that follow in a skincare routine, making it an essential first treatment step For all skin types, including sensitive skin
Key Ingredients
FERULIC ACID Ferulic Acid is a plant-derived antioxidant naturally found in the cell wall of plants including bran and certain fruit seeds. The Ferulic Acid in our formula is naturally-derived and helps skin’s natural recovery process to target visible damage. LACTIC ACID Lactic Acid is an alpha hydroxy acid known for its exfoliation properties. Within our formulas, Lactic Acid helps gently exfoliate skin and diminish the look of fine lines and uneven skin texture. SQUALANE A signature Kiehl’s ingredient, Squalane is a highly-refined botanical lipid derived from olives. With an exceptional affinity to skin, Squalane absorbs easily and is known to help replenish skin’s barrier keeping it soft, supple and moisturized. See full list
How to Use
After cleansing, shake the bottle five times to mix the Ferulic Brew within the bottlePour five generous drops of our antioxidant facial treatment into the palm of your hand   Gently press onto skin five times, focusing on the cheeks, forehead and chin areas  Follow with serum and/or moisturizerCan be used morning and nightPair our Ferulic Acid antioxidant facial treatment with our #1 face cream to seal in 24-hour hydration and our dark circle eye cream for more visibly smooth, even and glowing skin. Further power up your routine for additional anti-aging benefits with our vitamin-c serum.
Kiehl’s Environmental Impact Scores
As part of our Kiehl’s Mission Renewal journey, we are providing the Environmental Impact Score to help you make informed decisions about the formulas you use. Kiehl’s is committed to continually improving the impact of our products throughout the product lifecycle, including the production and usage phase. This tool is designed to help assess the relative environmental and social impact of Kiehl’s Products compared to other L’Oréal Group products in the same category in 2020. The calculation method was developed with the help of independent scientific experts and Bureau Veritas Certification, an independent auditor. The score takes into account 14 environmental impact factors all along the product's life cycle. Learn more about the methodology, here. Overall environmental impactCompared to other similar L’Oréal Groupe Products sold worldwide in 2020 Carbon footprint 1g per average amount used 96 per 10mL Water footprint 2 per average amount used Every consumer product has some impact on the environment. A good score here does not mean a product has a positive impact or no impact on the environment. The letters and colors used in this tool are designed to help you make comparisons to other L’Oreal Groupe products in the same category around the world in 2020, so you can make more informed choices. This product currently has a less favorable impact than we aim for, so we have set out an action plan to improve its environmental and social performance over the coming months. The letters and colors used in this tool are designed to help you make comparisons to other similar products in L'Oréal's global portfolio, so you can make more informed choices.*Compared to other similar L’Oréal Groupe Products sold worldwide in 2020 see full information see less information .Manufacturing ConditionsMade in a responsible manufacturing plant Waste recovery: 100% Renewable energy: 84%Packaging Facts % of cardboard/paper certified FSCTM or PEFC: 100% made of recycled material3 including colorant: 0% Refillable or reusable: NSocial impact of the product​ The ingredients and components of this product are sourced from suppliers committed to respect the Fundamental principles of the UN on labor standards. 1 or more suppliers committed to the social inclusion of people from vulnerable communities contributed to making this product.*123Learn More.h-hide-for-D.h-score-D { display:none !important;}.h-hide-for-E.h-score-E { display:none !important;}.h-hide-for-A.h-score-A { display:none !important;}.h-hide-for-B.h-score-B { display:none !important;}.h-hide-for-C.h-score-C { display:none !important;}.h-suppliers-0.h-hide-for-0 { display:none !important;}