Superconcentrated Tightening Diamond Serum
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.
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.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Water
(Solvent) |
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Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
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Snail Secretion Filtrate
(Skin Conditioning) |
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Isopropyl Myristate
(Binding Agent, Fragrance, Skin Conditioning, Emollient, Binding, Perfuming, Solvent) |
Bad for Oily Skin
Fungal Acne Trigger
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Ceteareth-20
(Cleansing, Emulsifying, Surfactant) |
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Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling) |
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Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
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Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling) |
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Prunus Amygdalus Dulcis Oil
(Skin Conditioning) |
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Moringa Oleifera Seed Oil
(Emollient, Skin Conditioning) |
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Colloidal Platinum
(Antimicrobial, Antioxidant, Deodorant) |
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Leuconostoc/Radish Root Ferment Filtrate
(Antidandruff Agent, Antimicrobial) |
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Soy Isoflavones
(Skin Conditioning) |
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Pullulan
(Binding Agent, Film Forming, Binding) |
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
|
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Acetyl Hexapeptide-8
(Humectant, Skin Conditioning) |
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Heptapeptide-7
(Skin Conditioning) |
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Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling) |
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
|
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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Ascorbyl Tetraisopalmitate
(Antioxidant, Skin Conditioning, Emollient) |
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Magnesium PCA
(Humectant, Skin Conditioning) |
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Serine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
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Carnosine
(Skin Conditioning) |
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Trehalose
(Flavoring Agent, Humectant, Moisturising) |
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Urea
(Buffering Agent, Humectant, Antistatic Agent, Skin Conditioning) |
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Gold
(Cosmetic Colorant) |
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Diamond powder
(Abrasive) |
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Fraxinus Excelsior Bark Extract
(Skin Conditioning) |
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Silanetriol
(Hair Conditioning) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
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Hydroxyacetophenone
(Antioxidant) |
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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
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Potassium Sorbate
(Fragrance, Preservative) |
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PARFUM
(Fragrance, Perfuming) |
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Polyacrylamide
(Binding Agent, Film Forming, Hair Fixing, Antistatic Agent, Binding) |
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Sodium Polyacrylate
(Absorbent, Emulsion Stabilising, Film Forming, Hair Fixing, Skin Conditioning Agent Emollient, Viscosity Controlling Agent, Viscosity Increasing Agent, Binding, Skin Conditioning) |
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Triethanolamine
(Fragrance, Ph Adjuster, Emulsifying, Surfactant, Buffering Agent, Masking) |
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C13-14 Isoparaffin
(Emollient, Solvent) |
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Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
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Laureth-7
(Emulsifying, Surfactant) |
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Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
|
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Polysorbate 80
(Denaturant, Emulsifying, Surfactant) |
Fungal Acne Trigger
|
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Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient) |
|
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
|
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
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Algin
(Binding Agent, Fragrance, Viscosity Increasing Agent, Binding, Masking, Viscosity Controlling) |
Bad for Sensitive Skin
Bad for Oily Skin
|
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Disodium Phosphate
(Buffering Agent, Anticorrosive, Fragrance, Ph Adjuster, Masking) |
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Glyceryl Polyacrylate
(Film Forming) |
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Potassium Phosphate
(Ph Adjuster, Buffering Agent) |
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Potassium Citrate
(Buffering Agent, Chelating Agent, Ph Adjuster) |
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
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Mica
(Cosmetic Colorant, Opacifying) |
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CI 77891
(Colorant) |
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CI 77820
(Colorant) |
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How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
The concentrations these actives are typically effective at in research — not a measurement of this product.
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
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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