Ultra Pure Hyaluronic Acid 1.5% Serum

What it is: A concentrated facial serum formulated with just seven ingredients to help your skin bounce back with replenishing moisture and intensive hydration.

Skin Type: Normal, Dry, Combination, and Oily

Skincare Concerns: Dryness and Dullness

Formulation: Serum

Highlighted Ingredients:
- Hyaluronic Acid: Helps skin retain moisture and make skin feel more supple and bouncy.

Ingredient Callouts: It comes in recyclable packaging.

What Else You Need to Know: With 1.5 percent hyaluronic acid, this facial serum is formulated with just seven ingredients to replenish dry skin and retain moisture for healthy-looking, hydrated skin. Free of fragrance and colorants, this concentrated serum is minimally formulated for skin absorption and hydration.

Clinical Results: Reported by consumers in a 4-week study:
- After 1 week, 83% agree skin looks replenished

Based on an instrumental study:
- Instantly boosts hydration by 89%

Expert grading in a 4-week clinical study:
- Plumper skin in 1 week

Clean at Sephora
Clean at Sephora is a curation of brands committed to evolving the beauty industry. When you see our Clean seal, you can be sure this brand s products are formulated without certain ingredients that are potentially harmful to human health and the environment and also address ingredients clients are concerned about, including phthalates, formaldehyde or formaldehyde releasers, oxybenzone and octinoxate, hydroquinone, triclosan, coal tar, methylisothiazolinone and methylchloroisothiazolinone, insoluble plastic microbeads, and more. For the full list, check out the Ingredients tab.

-Hyaluronic Acid: Helps skin retain moisture and make skin feel more supple and bouncy.

Aqua/Water, Glycerin, Sodium Hyaluronate, Phenoxyethanol, Chlorphenesin, Tetrasodium Glutamate Diacetate, Citric Acid.

Clean at Sephora products are formulated without the following banned or restricted ingredients (please see Clean at Sephora landing page for full list of specific restrictions and allowances by category—this is not an exhaustive list):
Acrylates, Aluminum Salts, Animal Musks/Fats/Oils, Benzophenones and related compounds, Butoxyethanol, Butylated hydroxyanisole (BHA), Butylated hydroxytoluene (BHT) under 0.1%, Carbon Black or Black 2, Coal Tar, Ethanolamines, Formaldehyde and Formaldehyde Releasing Agents, Hydroquinone, Lead and Lead Acetate, Mercury + Mercury Compounds (Thimerisol), Methoxyethanol, Methyl Cellosolve, Methylchloroisothiazolinone and Methylisothiazolinone, Mineral Oil, Nanomaterials (restrictions for specific nanomaterials only), Oxybenzone, Parabens, Petrolatum and Paraffin (USP grade only), Phenoxyethanol under 1%, Phthalates, Plastic Microbeads, Polyacrylamide & Acrylamide, Resorcinol, Retinyl Palmitate, Styrene, Sulfates, Talc (no detection of asbestos), Toluene, Triclosan and Triclocarban, Undisclosed Synthetic Fragrance (under 1% and formulated without Acetaldehyde, Acetone, Acetonitrile, Benzalkonium chloride, BPA, EDTA, Methylene chloride, PTFE, PFOA), 1,4-Dioxane (ingredients must comply with impurity thresholds), Octinoxate, PFAS compounds, Nitromusks and Polycyclic Musks, Ethoxylated Ingredients (including PEGS or polyethylene glycol must meet contamination limits for 1,4-Dioxane and ethylene oxide), Cyclic Silicones, EDTA and derivatives (allowed if no technical substitute under 0.2%).

Suggested Usage:
-In the morning and evening, apply two to three drops to clean, dry skin.

Try out Kiehl’s Since 1851’s Ultra Pure Hyaluronic Acid 1.5% Serum hacks:
-Add a drop of this serum to your liquid makeup (foundation or highlighter) to add a boost of hydration and sheer out the coverage to a tint.
-Layer this serum underneath your favorite eye cream for an extra hydration boost.
-Use as a highlighter by dabbing extra over your moisturizer on the ‘c’ between the top of your brow arch, temple, and cheek bone.
-Zone treat your face by applying all over to hydrate skin. Follow with your favorite moisturizer where needed.
-Layer with Kiehl’s Since 1851’s Niacinamide Serum (sold separately) to absorb oil and soothe skin.
-Layer with Kiehl’s Since 1851’s Glycolic Acid Serum (sold separately) to gently exfoliate and improve the look of texture.