Superconcentrated Tightening Diamond Serum

Christian Laurent

Where to buy Possibly in stock

About this product

The Christian Laurent Superconcentrated Tightening Diamond Serum is a serums, essence, ampoule. Our analysis of its 60 ingredients (46 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
60
Low-risk
46
Fragrance
Contains fragrance
Origin
France
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 17/9
Good for dry skin
C13-14 Isoparaffin Moringa Oleifera Seed Oil Magnesium PCA Betaine Cetearyl Alcohol Acetyl Hexapeptide-8 Ascorbyl Tetraisopalmitate Isopropyl Myristate Caprylyl Glycol Butylene Glycol Sodium Hyaluronate Glycerin Trehalose Dimethicone Sodium Polyacrylate Urea Lecithin
Caution for dry skin
Xanthan Gum Glycerin Laureth-7 Ceteareth-20 Sodium Polyacrylate Polysorbate 80 Alcohol Denat. Triethanolamine Lecithin
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Snail Secretion Filtrate Alcohol Denat.
Sensitive Skin 6/13
Good for sensitive skin
Ascorbyl Tetraisopalmitate Glycerin Hydroxyacetophenone Dimethicone Tocopheryl Acetate Colloidal Platinum
Caution for sensitive skin
Disodium Phosphate Serine Algin Isopropyl Myristate Butylene Glycol Glycerin Citric Acid Sodium Benzoate Potassium Sorbate Alcohol Denat. Phenoxyethanol Triethanolamine Limonene

Ingredients list

60 total
Lower hazard (1) Higher hazard (6)
All60 Skin Conditioning38 Fragrance12 Humectant12 Solvent9 Viscosity Controlling9 Film Forming9 Emollient8 Masking8
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
Snail Secretion Filtrate
(Skin Conditioning)
1
B
Isopropyl Myristate
(Binding Agent, Fragrance, Skin Conditioning, Emollient, Binding, Perfuming, Solvent)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
3
B
Ceteareth-20
(Cleansing, Emulsifying, Surfactant)
1
A
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling)
Prunus Amygdalus Dulcis Oil
(Skin Conditioning)
1
A
Moringa Oleifera Seed Oil
(Emollient, Skin Conditioning)
Colloidal Platinum
(Antimicrobial, Antioxidant, Deodorant)
1
Leuconostoc/Radish Root Ferment Filtrate
(Antidandruff Agent, Antimicrobial)
1
Soy Isoflavones
(Skin Conditioning)
1
A
Pullulan
(Binding Agent, Film Forming, Binding)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Acetyl Hexapeptide-8
(Humectant, Skin Conditioning)
Heptapeptide-7
(Skin Conditioning)
1
B
Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
Ascorbyl Tetraisopalmitate
(Antioxidant, Skin Conditioning, Emollient)
1
B
Magnesium PCA
(Humectant, Skin Conditioning)
1
A
Serine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
Carnosine
(Skin Conditioning)
1
A
Trehalose
(Flavoring Agent, Humectant, Moisturising)
3
A
Urea
(Buffering Agent, Humectant, Antistatic Agent, Skin Conditioning)
4
Gold
(Cosmetic Colorant)
1
Diamond powder
(Abrasive)
Fraxinus Excelsior Bark Extract
(Skin Conditioning)
1
Silanetriol
(Hair Conditioning)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
Hydroxyacetophenone
(Antioxidant)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
3
A
Potassium Sorbate
(Fragrance, Preservative)
PARFUM
(Fragrance, Perfuming)
4
B
Polyacrylamide
(Binding Agent, Film Forming, Hair Fixing, Antistatic Agent, Binding)
3
B
Sodium Polyacrylate
(Absorbent, Emulsion Stabilising, Film Forming, Hair Fixing, Skin Conditioning Agent Emollient, Viscosity Controlling Agent, Viscosity Increasing Agent, Binding, Skin Conditioning)
5
B
Triethanolamine
(Fragrance, Ph Adjuster, Emulsifying, Surfactant, Buffering Agent, Masking)
1
B
C13-14 Isoparaffin
(Emollient, Solvent)
1
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
3
B
Laureth-7
(Emulsifying, Surfactant)
4
Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
3
B
Polysorbate 80
(Denaturant, Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
A
Algin
(Binding Agent, Fragrance, Viscosity Increasing Agent, Binding, Masking, Viscosity Controlling)
Bad for Sensitive Skin
Bad for Sensitive Skin
Bad for Oily Skin
Bad for Oily Skin
1
B
Disodium Phosphate
(Buffering Agent, Anticorrosive, Fragrance, Ph Adjuster, Masking)
3
A
Glyceryl Polyacrylate
(Film Forming)
1
B
Potassium Phosphate
(Ph Adjuster, Buffering Agent)
1
A
Potassium Citrate
(Buffering Agent, Chelating Agent, Ph Adjuster)
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
2
Mica
(Cosmetic Colorant, Opacifying)
CI 77891
(Colorant)
CI 77820
(Colorant)

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

Antioxidants
Shields skin from free radical damage.
Peptides
Supports skin hydration and improves firmness.
Vitamin C
Brightens, evens tone, and supports collagen.
Vitamin E
Protects skin and soothes irritation.
Niacinamide
Strengthens, smooths, and brightens skin.
Hyaluronic Acid
Hydrates by attracting and holding water.
Snail Mucin
Deeply hydrates and supports skin repair.
Urea
Gently exfoliates and deeply moisturizes.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Anti-AgingSoftens lines and helps skin look youthful.
Reduces IrritationEases discomfort and supports skin resilience.
Scar HealingImproves the look of marks and scars.
Redness ReducingSoothes visible redness and calms irritation.
BrighteningRestores radiance to dull, tired skin.
Dark SpotsFades dark spots for even skin tone.

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Snail Secretion Filtrate
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Ceteareth-20
Cleansing, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B CleansingEmulsifyingSurfactant
Cetearyl Alcohol
Emulsion stabilising, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingOpacifyingFoam boostingViscosity increasingagent - aqueousViscosity increasing agentEmollientEmulsifyingViscosity controlling
Butyrospermum Parkii Butter
Skin conditioning, Viscosity controlling
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningViscosity controlling
Prunus Amygdalus Dulcis Oil
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Moringa Oleifera Seed Oil
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientSkin conditioning
Colloidal Platinum
Antimicrobial, Antioxidant
Limited public safety data.Read moreShow less
EWG N/A AntimicrobialAntioxidantDeodorant
Leuconostoc/Radish Root Ferment Filtrate
Antidandruff agent, Antimicrobial
Low-hazard ingredient.Read moreShow less
EWG 1 Antidandruff agentAntimicrobial
Soy Isoflavones
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Pullulan
Binding agent, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentFilm formingBinding
Acetyl Hexapeptide-8
Humectant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 HumectantSkin conditioning
Heptapeptide-7
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Betaine
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioningViscosity controlling
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
+ 32 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
Isopropyl Myristate
Binding agent, Fragrance
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR B Binding agentFragranceSkin conditioningEmollientBindingPerfumingSolvent Bad for Oily SkinFungal-acne trigger
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Triethanolamine
Fragrance, Ph adjuster
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR B FragrancePh adjusterEmulsifyingSurfactantBuffering agentMasking
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Alcohol Denat.
Antifoaming agent, Antimicrobial
Causes moisture evaporation - prone to dry out skinRead moreShow less
EWG 4 Antifoaming agentAntimicrobialAstringentMaskingSolventViscosity controlling Bad for Dry SkinBad for Sensitive Skin
Polysorbate 80
Denaturant, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B DenaturantEmulsifyingSurfactant Fungal-acne trigger
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
Algin
Binding agent, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentFragranceViscosity increasing agentBindingMaskingViscosity controlling Bad for Sensitive SkinBad for Oily Skin
Limonene
Deodorant, Perfuming
Moderate-hazard ingredient.Read moreShow less
EWG 6 DeodorantPerfumingSolvent Allergens

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning works well: Antioxidants like vitamin C pair well with daytime use under sunscreen.

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 Tetraisopalmitate

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.

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