O3 Barrier Repairing Hydra-Serum

Sweet Chemistry

Where to buy Possibly in stock

About this product

The Sweet Chemistry O3 Barrier Repairing Hydra-Serum is a serums, essence, ampoule. Our analysis of its 74 ingredients (56 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
74
Low-risk
56
Fragrance
Fragrance-free
Origin
United States

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 16/10
Good for dry skin
C12-15 Alkyl Benzoate Linolenic Acid Linoleic Acid Sodium Acetylated Hyaluronate Sodium Hyaluronate Crosspolymer Rosa Rubiginosa Seed Oil Caprylic/Capric Triglyceride Caprylyl Glycol Sodium PCA Sodium Hyaluronate Glycerin Cholesterol Histidine Camellia Sinensis Leaf Extract Sodium Lactate PCA
Caution for dry skin
Lauryl Glucoside Linolenic Acid Linoleic Acid Myristyl Glucoside Sambucus Nigra Fruit Extract Xanthan Gum Glycerin Colloidal Oatmeal Hexylene Glycol Camellia Sinensis Leaf Extract
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Sambucus Nigra Fruit Extract Camellia Sinensis Leaf Extract
Sensitive Skin 11/18
Good for sensitive skin
Resveratrol Laminaria Saccharina Extract Ubiquinone Glycerin Colloidal Oatmeal Tetrahexyldecyl Ascorbate Thioctic Acid Camellia Sinensis Leaf Extract Tocopheryl Acetate Allantoin Hydrolyzed Collagen Extract
Caution for sensitive skin
Glycine Linolenic Acid Linoleic Acid Valine Serine Aspartic Acid Alanine Arginine Isoleucine Caprylic/Capric Triglyceride Glycerin Threonine Phenylalanine Proline Hexylene Glycol Histidine Camellia Sinensis Leaf Extract Phenoxyethanol

Ingredients list

74 total
Lower hazard (1) Higher hazard (4)
All74 Skin Conditioning76 Hair Conditioning22 Fragrance18 Antistatic Agent13 Humectant12 Skin Protecting10 Emollient8 Masking7
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
Hydrolyzed Collagen Extract
(Skin Protecting)
1
Ceramide NP
(Hair Conditioning, Skin Conditioning)
1
Tetrahexyldecyl Ascorbate
(Antioxidant, Skin Conditioning)
1
Laminaria Saccharina Extract
(Skin Protecting)
1
A
Cholesterol
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Emollient, Emulsifying, Stabilising, Viscosity Controlling)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
Rosa Rubiginosa Seed Oil
(Skin Conditioning, Emollient)
1
B
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber)
Good for Oily Skin
Good for Oily Skin
Vaccinium Macrocarpon Fruit Extract
(Astringent)
1
Vaccinium Myrtillus Fruit Extract
(Skin Conditioning)
Rubus Fruticosus Fruit Extract
(Astringent, Fragrance, Tonic)
Rubus Idaeus Fruit Extract
(Astringent, Keratolytic, Skin Conditioning, Smoothing, Tonic)
1
Sambucus Nigra Fruit Extract
(Astringent)
Pyrus Malus Fruit Extract
(Skin Conditioning)
1
Euterpe Oleracea Fruit Extract
(Hair Conditioning)
1
Emblica Officinalis Fruit Extract
(Skin Conditioning)
Palmitoyl Hexapeptide-52
(Skin Conditioning)
Palmitoyl Tetrapeptide-50
(Skin Conditioning)
Heptapeptide-15
(Skin Conditioning)
Palmitoyl Heptapeptide-18
(Skin Conditioning)
1
Palmitoyl Pentapeptide-4
(Skin Conditioning)
Copper Palmitoyl Heptapeptide-14
(Skin Conditioning)
Copper Lysinate/Prolinate
(Skin Conditioning)
Lactic Acid/Glycolic Acid Copolymer
(Skin Conditioning)
Ceramide AP
(Hair Conditioning, Skin Conditioning)
1
Phytosphingosine
(Hair Conditioning, Skin Conditioning)
1
Colloidal Oatmeal
(Abrasive, Absorbent, Bulking Agent, Skin Protecting)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Sodium Hyaluronate Crosspolymer
(Humectant, Skin Conditioning)
Hydrolyzed Sodium Hyaluronate
(Skin Conditioning)
1
Sodium Acetylated Hyaluronate
(Humectant)
1
A
Beta-Glucan
(Bulking Agent, Skin Conditioning)
1
Linolenic Acid
(Fragrance, Hair Conditioning, Skin Conditioning, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Linolenic Acid., Antistatic Agent, Emollient, Perfuming)
Fungal Acne
Fungal Acne Trigger
1
Linoleic Acid
(Fragrance, Hair Conditioning, Skin Conditioning, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Linoleic Acid., Antistatic Agent, Emollient)
Fungal Acne
Fungal Acne Trigger
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
B
Sodium PCA
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
3
B
Sodium Lactate
(Buffering Agent, Exfoliant, Humectant, Keratolytic)
3
B
PCA
(Humectant, Moisturising)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
A
Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Aspartic Acid
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Glycine
(Buffering Agent, Fragrance, Hair Conditioning, Skin Conditioning Agent Miscellaneous, Antistatic Agent, Skin Conditioning)
1
A
Alanine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Serine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Valine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Histidine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Humectant)
1
A
Phenylalanine
(Fragrance, Hair Conditioning, Skin Conditioning)
1
A
Isoleucine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent)
1
A
Proline
(Fragrance, Hair Conditioning, Skin Conditioning)
1
A
Threonine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Hair Waving Or Straightening)
2
Thioctic Acid
(Antioxidant)
1
Ubiquinone
(Antioxidant, Skin Conditioning)
1
Resveratrol
(Antioxidant, Skin Protecting)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
Bisabolol
(Fragrance, Skin Conditioning, Soothing)
1
A
Allantoin
(Skin Conditioning, Skin Protecting, Soothing)
Good for Oily Skin
Good for Oily Skin
Good for Sensitive Skin
Good for Sensitive Skin
1
A
C12-15 Alkyl Benzoate
(Skin Conditioning, Emollient, Antimicrobial)
Methylglucoside Phosphate
(Skin Conditioning)
1
A
Biosaccharide Gum-1
(Skin Conditioning)
1
B
Myristyl Glucoside
(Cleansing)
1
B
Lauryl Glucoside
(Cleansing, Surfactant)
Polyglyceryl-6 Laurate
(Emulsifying)
1
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling)
1
A
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
A
Polyvinyl Alcohol
(Binding Agent, Film Forming, Viscosity Increasing Agent, Viscosity Controlling)
1
Trisodium Ethylenediamine Disuccinate
(Chelating Agent)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Glycerin
Humectant, Skin Protecting
Niacinamide
Skin Conditioning
Caprylic/Capric Triglyceride
Emollient, Skin Conditioning
Hydrolyzed Collagen Extract
Skin Protecting
Ceramide NP
Skin Conditioning
Tetrahexyldecyl Ascorbate
Antioxidant, Skin Conditioning

Benefits

Good for dry skin
Good for oily/acne-prone skin

Concerns

Contains paraben
Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Hydrolyzed Collagen Extract
Skin protecting
Limited public safety data.Read moreShow less
EWG N/A Skin protecting
Ceramide NP
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioning
Tetrahexyldecyl Ascorbate
Antioxidant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AntioxidantSkin conditioning
Laminaria Saccharina Extract
Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin protecting
Cholesterol
Emulsion stabilising, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingSkin conditioningViscosity increasing agentEmollientEmulsifyingStabilisingViscosity controlling
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Rosa Rubiginosa Seed Oil
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningEmollient
Vaccinium Macrocarpon Fruit Extract
Astringent
Limited public safety data.Read moreShow less
EWG N/A Astringent
Vaccinium Myrtillus Fruit Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Rubus Fruticosus Fruit Extract
Astringent, Fragrance
Limited public safety data.Read moreShow less
EWG N/A AstringentFragranceTonic
Rubus Idaeus Fruit Extract
Astringent, Keratolytic
Limited public safety data.Read moreShow less
EWG N/A AstringentKeratolyticSkin conditioningSmoothingTonic
Sambucus Nigra Fruit Extract
Astringent
Low-hazard ingredient.Read moreShow less
EWG 1 Astringent
+ 49 more — see the full ingredients list above
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Camellia Sinensis Leaf Extract
Antimicrobial, Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B AntimicrobialAntioxidantAstringentEmollientHumectantMaskingOral care agentSkin conditioningSkin protectingTonicUv absorber Good for Oily Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Linolenic Acid
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceHair conditioningSkin conditioningSufactantsurfactant-cleansing agent is included as a function for the soap form of linolenic acid.Antistatic agentEmollientPerfuming Fungal-acne trigger
Linoleic Acid
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceHair conditioningSkin conditioningSufactantsurfactant-cleansing agent is included as a function for the soap form of linoleic acid.Antistatic agentEmollient Fungal-acne trigger
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry Skin
Sodium PCA
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioning Good for Dry Skin
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Allantoin
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSkin protectingSoothing Good for Oily SkinGood for Sensitive Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.
  • 3 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Vitamin C (ascorbic) 5–20%

L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.

Tetrahexyldecyl Ascorbate

Niacinamide 2–5% (up to 10%)

Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.

Niacinamide

AHA (acid exfoliant) 5–10% (OTC)

OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.

Lactic Acid/Glycolic Acid Copolymer

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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