Algenist Genius Ultimate Anti-Aging Vitamin C+ Serum

Algenist

Algenist Genius Ultimate Anti-Aging Vitamin C+ Serum

0.0
from 0 Ratings
Where to buy Possibly in stock

About this product

The Algenist Genius Ultimate Anti-Aging Vitamin C+ Serum is a serums, essence, ampoule. Our analysis of its 69 ingredients (58 low-risk) rates it Excellent (93/100). 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
69
Low-risk
58
Fragrance
Contains fragrance
Origin
United States
Data updated
Jun 2026

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 15/13
Good for dry skin
Algae Extract Glyceryl Stearate Cetearyl Alcohol Sorbitol Ethoxydiglycol Isononyl Isononanoate Caprylic/Capric Triglyceride Caprylyl Glycol Butylene Glycol Glycerin Cholesterol Camellia Sinensis (Green Tea) Leaf Extract Dimethicone Lecithin Bambusa Vulgaris Leaf/Stem Extract
Caution for dry skin
Sodium Lauroyl Lactylate Sorbitan Isostearate Xanthan Gum Glycerin Hexylene Glycol Camellia Sinensis (Green Tea) Leaf Extract Ceteareth-20 Sodium Hydroxide Polysorbate 20 Polysorbate 60 PEG-100 Stearate Lecithin Saccharum Officinarum Ferment Extract
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Camellia Sinensis (Green Tea) Leaf Extract Saccharum Officinarum Ferment Extract
Sensitive Skin 7/18
Good for sensitive skin
Ergothioneine Pisum Sativum (Pea) Extract Glycerin Camellia Sinensis (Green Tea) Leaf Extract Dimethicone Inula Crithmoide Extract Citrus Limon (Lemon) Fruit Extract
Caution for sensitive skin
Algae Extract Sodium Citrate Sorbitol Ethoxydiglycol Citrus Aurantium Dulcis (Orange) Fruit Extract Caprylic/Capric Triglyceride Butylene Glycol Glycerin Hexylene Glycol Citric Acid Camellia Sinensis (Green Tea) Leaf Extract Benzoic Acid Sodium Benzoate Potassium Sorbate Phenoxyethanol Citral Coumarin Fragrance

Ingredients list

69 total
Lower hazard (1) Higher hazard (8)
All69 Skin Conditioning49 Fragrance15 Humectant11 Masking11 Emollient10 Hair Conditioning10 Viscosity Controlling10 Emulsifying10
EWG CIR Ingredient Name & Cosmetic Functions Notes
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
1
B
Isononyl Isononanoate
(Skin Conditioning, Emollient, Antistatic Agent)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
Saccharum Officinarum Ferment Extract
(Astringent, Tonic)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
1
A
Glyceryl Stearate
(Emollient, Emulsifying)
Fungal Acne
Fungal Acne Trigger
Hydroxyphenoxy Propionic Acid
(Skin Conditioning)
3
A
PEG-100 Stearate
(Surfactant)
Fungal Acne
Fungal Acne Trigger
1
Tetrapeptide-21
(Skin Conditioning)
1
A
Beta-Glucan
(Bulking Agent, 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
B
Citrus Aurantium Dulcis (Orange) Fruit Extract
(Fragrance, Skin Conditioning, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
2
B
Citrus Limon (Lemon) Fruit Extract Good for Oily Skin
Good for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Pyrus Malus (Apple) Fruit Extract
(Proprietary, Skin Conditioning)
B
Malus Domestica Fruit Cell Culture Extract
(Skin Conditioning)
4
Inula Crithmoide Extract
(Hair Conditioning, Skin Protecting)
Bambusa Vulgaris Leaf/Stem Extract
(Humectant, Oral Care Agent)
1
Glucosamine HCl
(Ph Adjuster, Antistatic Agent, Hair Conditioning)
1
Pisum Sativum (Pea) Extract
(Skin Conditioning, Skin Protecting)
1
Ergothioneine
(Antioxidant)
1
A
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling)
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
1
Sorbitol
(Flavoring Agent, Fragrance, Humectant, Plasticizer, Skin Conditioning)
3
B
Ceteareth-20
(Cleansing, Emulsifying, Surfactant)
1
A
Sclerotium Gum
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Viscosity Controlling)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
1
A
1,2-Hexanediol
(Solvent)
3
A
Benzoic Acid
(Fragrance, Ph Adjuster, Preservative, Bulking Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
3
A
Potassium Sorbate
(Fragrance, Preservative)
7
Citral
(Flavoring Agent, Fragrance, Masking)
Allergens
Allergens
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
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
2-O-Ethyl Ascorbic Acid
(Skin Conditioning)
1
Polymethylsilsesquioxane
(Opacifying)
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
1
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
A
Ethoxydiglycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Humectant, Perfuming)
A
Algae Exopolysaccharides
(Film Forming, Humectant, Skin Conditioning, Skin Protecting)
1
A
Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer
(Viscosity Controlling)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient)
3
A
PEG-12 Dimethicone
(Hair Conditioning, Skin Conditioning)
1
Palmitoyl Oligopeptide
(Skin Conditioning, Sufactant)
1
A
Palmitoyl Tetrapeptide-7
(Skin Conditioning)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
Collagen
(Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
A
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
1
Plantago Lanceolata Leaf Extract
(Antimicrobial)
1
A
Sorbitan Isostearate
(Emulsifying, Surfactant)
3
B
Polysorbate 60
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
Sodium Lauroyl Lactylate
(Emulsifying, Surfactant)
1
A
Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
Ceramide NP
(Hair Conditioning, Skin Conditioning)
1
Ceramide
Ceramide EOP
(Hair Conditioning, Skin Conditioning)
1
Phytosphingosine
(Hair Conditioning, Skin Conditioning)
1
A
Cholesterol
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Emollient, Emulsifying, Stabilising, Viscosity Controlling)
1
Leuconostoc/Radish Root Ferment Filtrate
(Antidandruff Agent, Antimicrobial)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
8
Fragrance
(Deodorant, Masking, Perfuming)
7
Coumarin
(Fragrance, Masking)
Allergens
Allergens

My Ingredient Notes

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

Browse similar serums, essence, ampoule
No close formula match yet — browse other products like this

Key ingredients

Dimethicone
Skin Protecting, Emollient
Isononyl Isononanoate
Skin Conditioning, Emollient
Pentylene Glycol
Skin Conditioning
Saccharum Officinarum Ferment Extract
Astringent
Caprylic/Capric Triglyceride
Emollient, Skin Conditioning
Glyceryl Stearate
Emollient

Benefits

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

Concerns

Contains paraben
Contains silicone
Contains eu allergen
Not fungal acne (malassezia) safe
Citral — higher EWG
Fragrance — higher EWG
Coumarin — 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

Isononyl Isononanoate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollientAntistatic agent
Pentylene Glycol
Skin conditioning, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSolvent
Saccharum Officinarum Ferment Extract
Astringent, Tonic
Limited public safety data.Read moreShow less
EWG N/A AstringentTonic
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Hydroxyphenoxy Propionic Acid
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Tetrapeptide-21
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Beta-Glucan
Bulking agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Bulking agentSkin 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
Pyrus Malus (Apple) Fruit Extract
Proprietary, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 ProprietarySkin conditioning
Malus Domestica Fruit Cell Culture Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A CIR B Skin conditioning
Inula Crithmoide Extract
Hair conditioning, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 4 Hair conditioningSkin protecting
Bambusa Vulgaris Leaf/Stem Extract
Humectant, Oral care agent
Limited public safety data.Read moreShow less
EWG N/A HumectantOral care agent
Glucosamine HCl
Ph adjuster, Antistatic agent
Low-hazard ingredient.Read moreShow less
EWG 1 Ph adjusterAntistatic agentHair conditioning
Pisum Sativum (Pea) Extract
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningSkin protecting
Ergothioneine
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
+ 38 more — see the full ingredients list above
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Glyceryl Stearate
Emollient, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientEmulsifying Fungal-acne trigger
PEG-100 Stearate
Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Surfactant Fungal-acne trigger
Citrus Aurantium Dulcis (Orange) Fruit Extract
Fragrance, Skin conditioning
Excessively acidic, potentially irritatingRead moreShow less
EWG 1 CIR B FragranceSkin conditioningMasking Bad for Sensitive Skin
Citrus Limon (Lemon) Fruit Extract
Other
Excessively acidic, potentially irritatingRead moreShow less
EWG 2 CIR B Good for Oily SkinBad for Sensitive Skin
Benzoic Acid
Fragrance, Ph adjuster
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePh adjusterPreservativeBulking agentMasking Bad for Sensitive Skin
Citral
Flavoring agent, Fragrance
Higher-hazard ingredient.Read moreShow less
EWG 7 Flavoring agentFragranceMasking Allergens
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
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
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
Collagen
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioning Good for Dry Skin
Polysorbate 60
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Fragrance
Deodorant, Masking
Higher-hazard ingredient.Read moreShow less
EWG 8 DeodorantMaskingPerfuming
+ 1 more — see the full ingredients list above

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.

2-O-Ethyl Ascorbic Acid

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

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.

From the community

0
Reviews
0
Saved by users
0
In collections

Ratings & reviews

Write a Review
0.0
from 0 ratings

Used this product? Rate it in 10 seconds

Alternatives