Careline Instant Filter Pore-Refining Primer Versus GRWM Cosmetics All About That Base Makeup Prep Squad Primer
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDimethicone
Emollient
Polymethylsilsesquioxane
Propylene Glycol
Humectant
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin Conditioning
Glycerin
Humectant
Cetyl PEG/PPG-10/1 Dimethicone
Emulsifying
Glycereth-26
Humectant
PEG-10 Dimethicone
Skin Conditioning
Niacinamide
Smoothing
Magnesium Sulfate
Magnesium Stearate
Cosmetic ColorantPhenoxyethanol
Preservative
Silica Dimethyl Silylate
EmollientDisteardimonium Hectorite
StabilisingCaprylyl Glycol
Emollient
Ethylhexylglycerin
Skin ConditioningSqualane
Emollient
Tocopheryl Acetate
Antioxidant
Parfum
Masking
CI 77491
Cosmetic ColorantWater, Dimethicone, Polymethylsilsesquioxane, Propylene Glycol, Dimethicone/Vinyl Dimethicone Crosspolymer, Glycerin, Cetyl PEG/PPG-10/1 Dimethicone, Glycereth-26, PEG-10 Dimethicone, Niacinamide, Magnesium Sulfate, Magnesium Stearate, Phenoxyethanol, Silica Dimethyl Silylate, Disteardimonium Hectorite, Caprylyl Glycol, Ethylhexylglycerin, Squalane, Tocopheryl Acetate, Parfum, CI 77491
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Propylene Glycol is a synthetic, colorless, odorless liquid that has been a staple in cosmetics for decades. It is a skin conditioning agent, humectant, and solvent.
As a humectant, it draw water to the skin to reduce flaking and restore suppleness. It's also a solvent that helps dissolve other actives and keeps formulas stable across temperature changes.
The CIR Expert Panel has confirmed this ingredient to be nontoxic and clinical studies show no sensitization at cosmetic use concentrations.
True allergic reactions are quite rare: a 15-year retrospective study of 6,751 patients found only 0.31% had a positive reaction (and less than half were considered clinically relevant).
It seemed that when sensitization does occur, it's most commonly linked to topical medication (like corticosteroids) and not cosmetics. Allergic contact dermatitis also appears largely limited to individuals with underlying skin conditions.
Overall, propylene glycol is a well-studied ingredient that most people can tolerate without issue.
Learn more about Propylene Glycol
