Know Your Environment. Protect Your Health.
EWG Home EWG’s Guide to Healthy Cleaning EWG’s Food Scores Healthy Living App Open menu

EWG's Skin Deep®
Find products and ingredients Learn how Skin Deep® works Meet our experts Discover EWG VERIFIED®
GET UPDATES DONATE
Score legend
HOW WE DETERMINE SCORES LEARN MORE ABOUT EWG VERIFIED®
Product score: 03

Data Availability:

Limited

Oh K! Antioxidant Serum With Vitamin C & Niacinamide

Oh K! Antioxidant Serum With Vitamin C & Niacinamide

WHERE TO BUY

When you make a purchase through retailer links on our site, we may earn commission through affiliate programs. All affiliate fees EWG receives support our nonprofit mission. Learn more here

CATEGORY

Serums & Essences

BRAND

Oh K!

DATA LAST UPDATED

February 2022

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.

Ingredient score: 01
WATER
Appeared as: AQUA (WATER; EAU)
Data Availability: Robust
Expand content Collapse content
FUNCTION(S) solvent
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 02
GLYCERIN
Data Availability: Good
Expand content Collapse content
FUNCTION(S) denaturant, fragrance ingredient, hair conditioning agent, humectant, oral care agent;oral health care drug, skin-conditioning agent - humectant, skin protectant, viscosity decreasing agent, perfuming, solvent
CONCERNS • Use restrictions (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
NIACINAMIDE
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) hair conditioning agent, skin-conditioning agent - miscellaneous, smoothing
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
ASCORBIC ACID (VITAMIN C)
Appeared as: ASCORBIC ACID
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) antioxidant, fragrance ingredient, ph adjuster, skin-conditioning agent - miscellaneous, buffering, masking, skin conditioning
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 02
DIPROPYLENE GLYCOL
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) fragrance ingredient, solvent, viscosity decreasing agent, masking, viscosity controlling
CONCERNS • Developmental/reproductive toxicity (low)
• Allergies/immunotoxicity (low)
• Endocrine disruption (low)
• Non-reproductive organ system toxicity (low)
• Irritation (skin, eyes, or lungs) (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
METHYLPROPANEDIOL
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) solvent
CONCERNS • Allergies/immunotoxicity (low)
• Irritation (skin, eyes, or lungs) (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
1,2-HEXANEDIOL
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) solvent
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 04
SODIUM HYDROXIDE
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) denaturant, ph adjuster, buffering
CONCERNS • Use restrictions (high)
• Non-reproductive organ system toxicity (moderate)
• Irritation (skin, eyes, or lungs) (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
SODIUM POLYACRYLOYLDIMETHYL TAURATE
Data Availability: None
Expand content Collapse content
FUNCTION(S) emulsion stabilizer, viscosity increasing agent - aqueous, emulsion stabilising, viscosity controlling
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
SODIUM HYALURONATE
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) skin-conditioning agent - miscellaneous, humectant, skin conditioning
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 03
TOCOPHERYL ACETATE
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) antioxidant, skin-conditioning agent - miscellaneous, skin conditioning
CONCERNS • Cancer (low)
• Allergies/immunotoxicity (moderate)
• Contamination concerns (HYDROQUINONE)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 03
PEG-60 HYDROGENATED CASTOR OIL
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) fragrance ingredient, surfactant - cleansing agent, surfactant - solubilizing agent
CONCERNS • Use restrictions (low)
• Non-reproductive organ system toxicity (low)
• Irritation (skin, eyes, or lungs) (low)
• Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 04
SODIUM METABISULFITE
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) antioxidant, reducing agent, preservative, reducing
CONCERNS • Allergies/immunotoxicity (low)
• Use restrictions (moderate)
• Non-reproductive organ system toxicity (moderate)
• Irritation (skin, eyes, or lungs) (high)
• Occupational hazards (high)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
BRASSICA OLERACEA CAPITATA (CABBAGE) LEAF EXTRACT
Appeared as: BRASSICA OLERACEA ACEPHALA LEAF EXTRACT
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) skin-conditioning agent - miscellaneous, skin conditioning
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
ACTINIDIA CHINENSIS (KIWI) EXTRACT
Appeared as: ACTINIDIA CHINENSIS (KIWI) FRUIT EXTRACT
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) not reported, emollient, skin conditioning
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 04
CAMELLIA SINENSIS (GREEN TEA) LEAF EXTRACT
Appeared as: CAMELLIA SINENSIS LEAF EXTRACT
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) antioxidant, fragrance ingredient, oral care agent, skin-conditioning agent -miscellaneous, ultraviolet light absorber, antimicrobial, astringent, emollient, humectant, masking, oral care, skin conditioning, skin protecting, tonic, uv absorber
CONCERNS • Allergies/immunotoxicity (moderate)
• Use restrictions (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
BRASSICA OLERACEA ITALICA (BROCCOLI) EXTRACT
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) cosmetic astringent, astringent
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
PERSEA GRATISSIMA (AVOCADO) FRUIT EXTRACT
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) not reported, emollient, moisturising, skin conditioning, smoothing, soothing
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
BUTYLENE GLYCOL
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) fragrance ingredient, skin-conditioning agent - miscellaneous, solvent, viscositydecreasing agent, humectant, masking, skin conditioning, viscosity controlling
CONCERNS • Irritation (skin, eyes, or lungs) (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 02
ETHYLHEXYLGLYCERIN
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) deodorant agent, skin-conditioning agent - miscellaneous, skin conditioning
CONCERNS • Allergies/immunotoxicity (low)
• Non-reproductive organ system toxicity (moderate)
• Ecotoxicology (low)
• Irritation (skin, eyes, or lungs) (high)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
DISODIUM EDTA
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) chelating agent, chelating, viscosity controlling
CONCERNS • Enhanced skin absorption
LEARN MORE ABOUT THIS INGREDIENT

Ingredients from packaging:

AQUA (WATER, EAU), GLYCERIN, NIACINAMIDE, ASCORBIC ACID, DIPROPYLENE GLYCOL, METHYLPROPANEDIOL, 1,2-HEXANEDIOL, SODIUM HYDROXIDE, SODIUM POLYACRYLOYLDIMETHYL TAURATE, SODIUM HYALURONATE, TOCOPHERYL ACETATE, PEG-60 HYDROGENATED CASTOR OIL, SODIUM METABISULFITE, BRASSICA OLERACEA ACEPHALA LEAF EXTRACT, ACTINIDIA CHINENSIS (KIWI) FRUIT EXTRACT, CAMELLIA SINENSIS LEAF EXTRACT, BRASSICA OLERACEA ITALICA (BROCCOLI) EXTRACT, PERSEA GRATISSIMA (AVOCADO) FRUIT EXTRACT, BUTYLENE GLYCOL, ETHYLHEXYLGLYCERIN, DISODIUM EDTA

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.

Score legend
WEIGHT-OF-EVIDENCE APPROACH

A product’s hazard score is not an average of the ingredients’ hazard scores. It is calculated using a weight-of-evidence approach that factors in all of the hazards or health impacts associated with the ingredients.

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
NONE

Ingredients have not been assessed.

LIMITED-FAIR

There is only a modest volume of research.

GOOD-ROBUST

Ingredients have been studied extensively.

More serums & essences

ANIA Marula Serum
ANIA
Marula Serum
EWG Verified logo
EWG VERIFIED
Three Ships Dew Drops Mushroom Hyaluronic Acid + Vitamin C Serum
Three Ships
Dew Drops Mushroom Hyaluronic Acid + Vitamin C Serum
EWG Verified logo
EWG VERIFIED
Three Ships Glow 49% Jojoba Oil Serum
Three Ships
Glow 49% Jojoba Oil Serum
EWG Verified logo
EWG VERIFIED
DermaBiotics Regenerating Serum
DermaBiotics
Regenerating Serum
EWG Verified logo
EWG VERIFIED
VIEW ALL serums & essences

More from Oh K!

Ohk! s.o.s Save Our Skin Skin Toning Peacock Print Sheet Mask (2020 formulation)
Oh K!
Ohk! s.o.s Save Our Skin Skin Toning Peacock Print Sheet Mask...
Product score: 6
HIGH HAZARD
Data Availability:
Oh K! Gently Warming Facial Steam Mask (2020 formulation)
Oh K!
Gently Warming Facial Steam Mask (2020 formulation)
Product score: 2
HIGH HAZARD
Data Availability:
Oh K! Cleansing Bubble Pads (2020 formulation)
Oh K!
Cleansing Bubble Pads (2020 formulation)
Product score: 4
HIGH HAZARD
Data Availability:
Oh K! Super Hydrating Hyaluronic Acid With Vitamin B3 and Sea Kelp Hydrogel Mask
Oh K!
Super Hydrating Hyaluronic Acid With Vitamin B3 and Sea Kelp...
Product score: 5
HIGH HAZARD
Data Availability:
VIEW ALL Oh K!
Skindeep Healthy Living App

Discover a curated selection of healthier beauty and personal care products. Donate today to get your EWG VERIFIED® holiday gift set!

GET IT NOW