Prepstar Lash Primer
The Lune+Aster Prepstar Lash Primer is a misc. Our analysis of its 36 ingredients (27 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to dry skin.
The Lune+Aster Prepstar Lash Primer is a misc. Our analysis of its 36 ingredients (27 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to dry 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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Paraffin
(Fragrance, Skin Conditioning Agent Occlusive, Viscosity Increasing Agent, Emollient, Viscosity Controlling) |
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C18-36 Acid Triglyceride
(Emollient, Skin Conditioning) |
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COPERNICIA CERIFERA CERA
(Film Forming, Skin Conditioning, Skin Conditioning Emollient) |
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Acacia Senegal Gum
(Adhesive, Fragrance, Film Forming, Masking) |
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Bis-Diglyceryl Polyacyladipate-2
(Skin Conditioning, Emollient) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Stearic Acid
(Fragrance, Sufactant, Emulsifying, Surfactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Stearic Acid., Emulsion Stabilising, Masking, Refatting) |
Bad for Oily Skin
Fungal Acne Trigger
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Palmitic Acid
(Fragrance, Opacifying, Sufactant, Surfactant Emulsifying Agentsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Palmitic Acid., Emollient) |
Bad for Oily Skin
Fungal Acne Trigger
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Aminomethyl Propanol
(Ph Adjuster, Buffering Agent) |
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Morinda Citrifolia Fruit Extract
(Skin Conditioning) |
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Chenopodium Quinoa Seed Extract
(Skin Conditioning) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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PERSEA GRATISSIMA OIL
(Skin Conditioning) |
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Ascorbyl Palmitate
(Antioxidant, Masking) |
Fungal Acne Trigger
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling) |
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GOSSYPIUM HERBACEUM SEED OIL
(Skin Conditioning) |
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
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Methylpropanediol
(Solvent) |
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Lauric Acid
(Fragrance, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Lauric Acid., Emulsifying) |
Bad for Oily Skin
Fungal Acne Trigger
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Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling) |
Good for Dry Skin
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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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Lauryl Alcohol Diphosphonic Acid
(Emulsion Stabilising) |
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Hydrogenated Vegetable Oil
(Viscosity Increasing Agent, Emollient, Skin Conditioning) |
Bad for Oily Skin
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Hydrolyzed Corn Protein
(Hair Conditioning, Skin Conditioning, Antistatic Agent) |
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Hydrolyzed Soy Protein
(Antistatic Agent, Hair Conditioning, Humectant, Skin Conditioning) |
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Hydrolyzed Wheat Protein
(Film Forming, Hair Conditioning, Skin Conditioning, Antistatic Agent) |
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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
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Potassium Sorbate
(Fragrance, Preservative) |
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Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking) |
Allergens
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Helianthus Annuus Seed Oil
(Fragrance, Skin Conditioning, Skin Conditioning Emollient) |
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Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Sorbic Acid
(Fragrance, Preservative) |
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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 Palmitate
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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