Nightly Clarifying Serum
The itk Nightly Clarifying Serum is a serums, essence, ampoule. Our analysis of its 31 ingredients (27 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to dry skin.
The itk Nightly Clarifying Serum is a serums, essence, ampoule. Our analysis of its 31 ingredients (27 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to dry skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
Dry Skin
10/2
Oily/Acne-Prone Skin
No data
Sensitive Skin
3/10
| 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
Fungal Acne Trigger
|
|
1
|
A
|
Pentylene Glycol
(Skin Conditioning, Solvent) |
|
|
1
|
A
|
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
|
|
|
SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient) |
|
|
1
|
|
Potassium Azeloyl Diglycinate
(Skin Conditioning) |
|
|
1
|
|
Polyacrylate Crosspolymer-6
(Emulsion Stabilising, Viscosity Controlling) |
|
|
1
|
A
|
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
|
|
1
|
A
|
Biosaccharide Gum-1
(Skin Conditioning) |
|
|
1
|
|
Bakuchiol
(Cosmetic Biocide, Antimicrobial) |
|
|
1
|
A
|
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
|
3
|
B
|
Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling) |
Good for Dry Skin
|
|
1
|
A
|
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning) |
Good for Dry Skin
|
|
3
|
|
Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
|
|
1
|
A
|
Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
|
|
3
|
B
|
Sodium Lactate
(Buffering Agent, Exfoliant, Humectant, Keratolytic) |
|
|
3
|
A
|
Urea
(Buffering Agent, Humectant, Antistatic Agent, Skin Conditioning) |
|
4
|
B
|
TEA-Lactate
(Humectant, Skin Conditioning) |
|
|
1
|
|
Sorbitol
(Flavoring Agent, Fragrance, Humectant, Plasticizer, Skin Conditioning) |
|
|
1
|
A
|
Serine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
|
|
4
|
B
|
Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent) |
Bad for Sensitive Skin
|
|
1
|
A
|
Allantoin
(Skin Conditioning, Skin Protecting, Soothing) |
Good for Oily Skin
Good for Sensitive Skin
|
|
1
|
|
Carnosine
(Skin Conditioning) |
|
|
1
|
A
|
Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling) |
|
|
4
|
A
|
Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
|
1
|
|
Sodium Chloride
(Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling) |
|
|
3
|
B
|
Polysorbate 20
(Emulsifying, Surfactant) |
Fungal Acne Trigger
|
|
1
|
A
|
Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
|
|
3
|
A
|
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
|
|
1
|
A
|
Palmitoyl Tripeptide-1
(Skin Conditioning) |
|
|
1
|
A
|
Palmitoyl Tetrapeptide-7
(Skin Conditioning) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
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.
Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.
Niacinamide
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
Lactic Acid
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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