EWG Skin Deep® | Stackedskincare Hyaluronic Acid Hydrating Serum Rating

EWG's Skin Deep®

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Data Availability:

Limited

Stackedskincare Hyaluronic Acid Hydrating Serum

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Ingredient concerns

See how this product scores for common concerns.

LOW

Cancer
MODERATE

Allergies & Immunotoxicity
LOW

Developmental and Reproductive Toxicity
HIGH

Use Restrictions

Ingredient scores

Ingredients are scored based on their formulation and concentration in this product. Click on an ingredient for more information.

WATER

Data Availability: Robust

FUNCTION(S)	solvent
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HYALURONIC ACID

Data Availability: Fair

FUNCTION(S)	antistatic, humectant, moisturising, skin conditioning, skin-conditioning agent - miscellaneous, viscosity increasing agent - aqueous
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NIACINAMIDE

Data Availability: Good

FUNCTION(S)	smoothing, hair conditioning agent, skin-conditioning agent - miscellaneous
CONCERNS	• Cancer (low) • Developmental/reproductive toxicity (low)
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PYRUS MALUS (APPLE) FRUIT EXTRACT

Data Availability: Fair

FUNCTION(S)	skin conditioning, proprietary, skin-conditioning agent - miscellaneous
CONCERNS	• Allergies/immunotoxicity (low) • Use restrictions (low) • Non-reproductive organ system toxicity (low) • Irritation (skin, eyes, or lungs) (low)
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TREHALOSE

Data Availability: Fair

FUNCTION(S)	humectant, moisturising, flavoring agent
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PROPANEDIOL

Data Availability: Fair

FUNCTION(S)	solvent, viscosity controlling, viscosity decreasing agent
CONCERNS	• Cancer (low) • Developmental/reproductive toxicity (low) • Enhanced skin absorption • Endocrine disruption (low) • Irritation (skin, eyes, or lungs) (high)
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LACTIC ACID

Data Availability: Fair

FUNCTION(S)	buffering, humectant, skin conditioning, exfoliant, fragrance ingredient, ph adjuster, skin-conditioning agent -humectant, skin-conditioning agent - miscellaneous
CONCERNS	• Cancer (low) • Developmental/reproductive toxicity (low) • Enhanced skin absorption • Use restrictions (high) • Irritation (skin, eyes, or lungs) (low)
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GLYCERIN

Data Availability: Fair

FUNCTION(S)	denaturant, humectant, perfuming, solvent, fragrance ingredient, hair conditioning agent, oral care agent;oral health care drug, skin-conditioning agent - humectant, skin protectant, viscosity decreasing agent
CONCERNS	• Use restrictions (moderate)
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HYDROXYETHYLCELLULOSE

Data Availability: Fair

FUNCTION(S)	binding, emulsion stabilising, film forming, stabilising, viscosity controlling, binder, emulsion stabilizer, film former, viscosity increasing agent - aqueous
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MICHELIA CHAMPACA (CHAMPACA) OIL

Data Availability: Limited

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ALLANTOIN

Data Availability: Limited

FUNCTION(S)	skin conditioning, skin protecting, soothing, skin-conditioning agent - miscellaneous, skin protectant
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DIPOTASSIUM GLYCYRRHIZATE

Data Availability: Limited

FUNCTION(S)	humectant, skin conditioning, flavoring agent, skin-conditioning agent - miscellaneous
CONCERNS	• Use restrictions (low)
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CAPRYLYL GLYCOL

Data Availability: Limited

FUNCTION(S)	emollient, hair conditioning, humectant, skin conditioning, hair conditioning agent, skin-conditioning agent - emollient
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HEXYLENE GLYCOL

Data Availability: Limited

FUNCTION(S)	emulsifying, perfuming, skin conditioning, solvent, surfactant, fragrance ingredient, viscosity decreasing agent
CONCERNS	• Allergies/immunotoxicity (low) • Irritation (skin, eyes, or lungs) (high)
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ETHYLHEXYLGLYCERIN

Data Availability: Limited

FUNCTION(S)	skin conditioning, deodorant agent, skin-conditioning agent - miscellaneous
CONCERNS	• Allergies/immunotoxicity (low) • Non-reproductive organ system toxicity (moderate) • Ecotoxicology (low) • Irritation (skin, eyes, or lungs) (high)
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PHENOXYETHANOL

Data Availability: Good

FUNCTION(S)	preservative, fragrance ingredient
CONCERNS	• Allergies/immunotoxicity (low) • Use restrictions (moderate) • Non-reproductive organ system toxicity (moderate) • Ecotoxicology (low) • Irritation (skin, eyes, or lungs) (high) • Occupational hazards (high)
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TETRASODIUM GLUTAMATE DIACETATE

Data Availability: Limited

FUNCTION(S)	chelating, chelating agent
CONCERNS	• Cancer (low) • Developmental/reproductive toxicity (low) • Irritation (skin, eyes, or lungs) (low) • Contamination concerns (ACETIC ACID, NITRILOTRI-, TRISODIUM SALT, MONOHYDRATE, NITRILOTRIACETIC ACID, and SODIUM GLYCOLATE)
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Ingredients from packaging:

Aqua, Hyaluronic Acid, Niacinamide, Pyrus Malus (Apple) Fruit Extract, Trehalose, Propaendiol, Lactic Acid, Glycerin, Hydroxyethylcellulose, Michelia Champaca Flower Oil, Allantoin, Dipotassium Glycyrrhizate, Capryl Glycol, Polysorbate 20, Hexylene Glycol, Ethylhexylglycerin, Phenoxyethanol, Tetrasodium Glutamate Diacetate

Product's animal testing policies

Some cosmetics companies have taken People for the Ethical Treatment of Animals and Leaping Bunny animal-testing pledges. For consumers who are concerned about companies’ policies on animal testing, Skin Deep reports this information.

Unknown

Leading international certifiers PETA and Leaping Bunny have no information concerning this company’s use of animal testing.

Understanding scores

Cosmetics and personal care products are not required to be tested for safety before being allowed on the market. The Skin Deep® scoring system was designed to help the public understand whether a product is safe to use or whether it contains ingredients of concern.

Every product and ingredient in Skin Deep gets a two-part score – one for hazard and one for data availability. The safest products score well by both measures, with a low hazard rating and a fair or better data availability rating.

HOW WE DETERMINE SCORES

Hazard score

The Skin Deep ingredient hazard score, from 1 to 10, reflects known and suspected hazards linked to the ingredients. The EWG Verified^® mark means a product meets EWG’s strictest criteria for transparency and health.

Data availability

The Skin Deep data availability rating reflects the number of scientific studies about the product or ingredient in the published scientific literature.

NONE LIMITED FAIR GOOD ROBUST

Low Availability

Moderate Availability

High Availability