M.A.C. Lightful C Marine-Bright Formula Essence/Serum

M.A.C.

M.A.C. Lightful C Marine-Bright Formula Essence/Serum

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About this product

The M.A.C. Lightful C Marine-Bright Formula Essence/Serum is a serums, essence, ampoule. Our analysis of its 35 ingredients (33 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
35
Low-risk
33
Fragrance
Contains fragrance
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 9/6
Good for dry skin
Algae Extract Dipotassium Glycyrrhizate Squalane Caprylyl Glycol Butylene Glycol Sodium Hyaluronate Glycerin Polyglyceryl-5 Oleate Camellia Sinensis (Green Tea) Leaf Extract
Caution for dry skin
Xanthan Gum Calcium Chloride Glycerin Polyglyceryl-5 Oleate Hexylene Glycol Camellia Sinensis (Green Tea) Leaf Extract
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Calcium Chloride Camellia Sinensis (Green Tea) Leaf Extract
Sensitive Skin 4/12
Good for sensitive skin
Palmaria Palmata Extract Ascorbyl Glucoside Glycerin Camellia Sinensis (Green Tea) Leaf Extract
Caution for sensitive skin
Algae Extract Sodium Citrate Caffeine Butylene Glycol Glycerin Hexylene Glycol Citric Acid Camellia Sinensis (Green Tea) Leaf Extract Sodium Benzoate Potassium Sorbate Phenoxyethanol Fragrance

Ingredients list

35 total
Lower hazard (1) Higher hazard (8)
All35 Skin Conditioning26 Fragrance10 Humectant8 Masking7 Viscosity Controlling7 Solvent5 Hair Conditioning5 Emollient5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
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
Ascorbyl Glucoside
(Antioxidant)
1
Caffeine
(Fragrance, Skin Conditioning, Masking)
1
Tocopherol (Vitamin E) Good for Dry Skin
Good for Dry Skin
1
Gentiana Lutea Root Extract
(Skin Conditioning)
2
Camellia Sinensis (Green Tea) Leaf Extract
(Antioxidant, Fragrance, Oral Care Agent, Skin Conditioning Agent Miscellaneous, Uv Absorber, Antimicrobial, Astringent, Emollient, Humectant, Masking, Skin Conditioning, Skin Protecting, Tonic)
1
Porphyra Yezoensis Extract
(Skin Conditioning)
1
Palmaria Palmata Extract
(Skin Protecting)
1
Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient)
3
A
Hydrolyzed Rice Bran Extract
(Skin Conditioning)
1
A
Silk Powder
(Bulking Agent, Skin Conditioning, Slip Modifier, Antistatic Agent, Hair Conditioning, Smoothing)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning)
1
Tourmaline
(Viscosity Increasing Agent, Viscosity Controlling)
1
A
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
1
A
Phenyl Trimethicone
(Antifoaming Agent, Hair Conditioning, Skin Conditioning)
Silicone
Silicone
1
Magnesium Chloride
(Viscosity Controlling)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
A
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling)
1
Polyglyceryl-5 Oleate
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
3
B
Potassium Hydroxide
(Ph Adjuster, Buffering Agent)
1
Calcium Chloride
(Cosmetic Astringent, Viscosity Increasing Agent, Viscosity Controlling)
1
B
Sodium Sulfate
(Viscosity Increasing Agent, Bulking Agent, Viscosity Controlling)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
8
Fragrance
(Deodorant, Masking, Perfuming)
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
3
A
Potassium Sorbate
(Fragrance, Preservative)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
2
A
Chlorphenesin
(Cosmetic Biocide, Antimicrobial, Preservative)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)

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

Butylene Glycol
Skin Conditioning, Humectant
Glycerin
Humectant, Skin Protecting
Ascorbyl Glucoside
Antioxidant
Caffeine
Skin Conditioning
Gentiana Lutea Root Extract
Skin Conditioning
Camellia Sinensis (Green Tea) Leaf Extract
Antioxidant, Uv Absorber

Benefits

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

Concerns

Contains paraben
Contains silicone
Not fungal acne (malassezia) safe
Fragrance — higher EWG
May not suit sensitive skin

EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Ascorbyl Glucoside
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
Caffeine
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceSkin conditioningMasking
Gentiana Lutea Root Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Camellia Sinensis (Green Tea) Leaf Extract
Antioxidant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 AntioxidantFragranceOral care agentSkin-conditioning agent -miscellaneousUv absorberAntimicrobialAstringentEmollientHumectantMaskingSkin conditioningSkin protectingTonic
Porphyra Yezoensis Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Palmaria Palmata Extract
Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin protecting
Algae Extract
Fragrance, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceHumectantOral care agentSkin conditioningEmollient
Hydrolyzed Rice Bran Extract
Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Skin conditioning
Silk Powder
Bulking agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Bulking agentSkin conditioningSlip modifierAntistatic agentHair conditioningSmoothing
Squalane
Emollient, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHair conditioningRefattingSkin conditioning
Tourmaline
Viscosity increasing agent, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Viscosity increasing agentViscosity controlling
Dipotassium Glycyrrhizate
Flavoring agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentSkin conditioningHumectant
Magnesium Chloride
Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Viscosity controlling
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
+ 12 more — see the full ingredients list above
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
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
Tocopherol (Vitamin E)
Other
Low-hazard ingredient.Read moreShow less
EWG 1 Good for Dry Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Phenyl Trimethicone
Antifoaming agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antifoaming agentHair conditioningSkin conditioning Silicone
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Fragrance
Deodorant, Masking
Higher-hazard ingredient.Read moreShow less
EWG 8 DeodorantMaskingPerfuming
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.

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.

Ascorbyl Glucoside

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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