What it is: A potent retinol serum in a daily-strength micro-dose that visibly reduces wrinkles, firms skin, and evens texture and tone with minimal discomfort.Skin Type: Normal, Dry, Combination, and OilySkincare Concerns: Fine Lines and Wrinkles, Uneven Texture, and Loss of Firmness and ElasticityFormulation: Lightweight CreamHighlighted Ingredients:- Pure Retinol: Accelerates skin-surface turnover to reduce visible signs of aging.- Ceramides: Support a strong moisture barrier and enhance skin’s tolerance of retinol.- Peptide: Supports skin's integrity for visible youth-renewing results.Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance. It also comes in recyclable packaging.What Else You Need to Know: Kiehl's facial serum is formulated to deliver a daily-strength micro-dose of Pure Retinol for visible anti-aging results with minimal discomfort. This daily serum is formulated with Pure Retinol, Peptides & Ceramides to help skin achieve optimal results with minimal redness, dryness or peeling.Clinical Results:Before & After:- 100% Showed Reduced Fine Lines and Wrinkles*- 94% Agree Texture is Refined **- 92% Agree Skin Tone Looks More Even **Results based on:*Expert grading in a clinical test after 12 weeks of use**Consumer perception test after 12 weeks of use Body Anti-Aging*:- 92% Agree Skin Looks Firmer- 87% Agree Lines Look Minimized-Suitable For Use on The Hands, Neck, & Chest*Based on expert grading in a clinical study with 54 panelists after 12 weeks.