Kiehl's Powerful-Strength 10% Vitamin C Eye Serum — 0.5 fl oz, Brightens & Smooths with Hyaluronic Acid

Kiehl's Powerful-Strength 10% Vitamin C Eye Serum is a lightweight, fragrance-free eye treatment formulated to visibly brighten dark circles, smooth fine lines, and reduce puffiness around the delicate under-eye area.

This concentrated eye serum combines 10% pure vitamin C with tri-peptide and hyaluronic acid to target common under-eye concerns such as blue and brown dark circles, puffiness, and fine lines. The formulation is designed for the fragile skin around the eyes: it warms on contact for better absorption, is dermatologist- and ophthalmologist-tested, and is suitable for contact lens wearers. The product is paraben-free and fragrance-free, making it a practical addition to morning and evening skincare routines.

How quickly can I expect to see results around my eyes?

Visible improvements in dark circles and overall brightness can appear in as little as seven days for some users, with continued smoothing and hydration over regular use. Individual results vary based on skin type, lifestyle, and how consistently the product is applied.

• Clinically tested to reduce the appearance of dark circles in some users within seven days.
• Daily morning and evening application supports ongoing brightening and smoothing.
• Lightweight texture absorbs quickly to allow layering under SPF and makeup.

What are the key ingredients and how do they help the under-eye area?

The formula centers on 10% pure vitamin C, supported by tri-peptide and hyaluronic acid to address multiple signs of aging and fatigue. Vitamin C targets uneven tone and dullness, tri-peptide helps smooth the appearance of fine lines, and hyaluronic acid replenishes hydration for a plumper look.

• 10% pure vitamin C: helps even skin tone and brighten the under-eye area.
• Tri-peptide: helps improve the look of fine lines and crow’s feet.
• Hyaluronic acid: provides immediate hydration and plumping for smoother texture.

How should I apply the serum for best results and safety?

Apply a small amount to clean skin and gently pat along the under-eye bone; avoid direct contact with the eyes. Use both morning and evening for consistent benefits, and rinse with water if the product accidentally gets into the eyes.

• Dispense onto fingertip and lightly pat along the sub-orbital bone.
• Use twice daily—morning and evening—for ongoing improvement.
• Keep product out of eyes; rinse thoroughly if contact occurs.

Can people with sensitive eyes or contact lens wearers use this?

The serum is dermatologist- and ophthalmologist-tested and formulated without parabens or fragrance to minimize irritation risk. It is considered suitable for contact lens wearers, though patch testing is recommended for very sensitive individuals.

• Fragrance-free and paraben-free formulation to reduce potential irritation.
• Ophthalmologist-tested and suitable for contact lens users.
• Perform a patch test if you have a history of eye-area sensitivity.

Who is this for: Kiehl's Powerful-Strength 10% Vitamin C Eye Serum is designed for anyone seeking a targeted, fast-absorbing eye treatment to brighten dark circles, hydrate and plump fine lines, and reduce puffiness. It suits those who prefer fragrance-free options and want a product compatible with contact lenses, as well as shoppers looking to layer an effective eye serum under sunscreen and makeup.

Ingredients

Propylene Glycol, Dimethicone, Glycerin, Ascorbic Acid, Dimethicone Crosspolymer, Cetyl PEG/PPG-10/1 Dimethicone, Cyclohexasiloxane, Aqua/Water, Hydroxyethylpiperazine Ethane Sulfonic Acid, Lauroyl Lysine, Aluminum Starch Octenylsuccinate, Polysilicone-11, CI 77891/Titanium Dioxide, Adenosine, Hydrolyzed Hyaluronic Acid, Steareth-20, Chlorhexidine Digluconate, N-Hydroxysuccinimide, Sodium Citrate, Potassium Sorbate, Palmitoyl Tripeptide-1, Chrysin, Pentaerythrityl Tetra-di-t-Butyl Hydroxyhydro-cinnamate, Palmitoyl Tetrapeptide-7, Citric Acid, Biotin.