A lightweight powder primer designed to smooth pores and create a refined, blurred finish. Can be worn under makeup as a base or over makeup as a smoothing layer.
Water, Glycerin, Butylene Glycol, Sodium Silicate, Sodium Magnesium Fluorosilicate, Magnesium Aluminum Silicate, Sea Water, Carrageenan, Pullulan, Sodium Phytate, Xanthan Gum, Hydrolyzed Rhodophyceae Extract, Sodium Benzoate, Foeniculum Vulgare (Fennel) Seed Extract, Symphytum Officinale Root Extract, Dipeptide-2, Citric Acid, Palmitoyl Tetrapeptide-7, Boswellia Serrata Extract, Centella Asiatica Extract, Mica, Argania Spinosa Kernel Extract, Camellia Sinensis Leaf Extract, Hesperidin Methyl Chalcone, Lactobacillus Ferment Lysate, Saccharomyces Lysate, Hydrolyzed Lupine Protein, Medicago Sativa (Alfalfa) Seed Extract, Tocopheryl Acetate, Ascorbic Acid, Panthenol, Carbomer, Sodium Citrate, Chlorhexidine Digluconate, Iron Oxides, Titanium Dioxide, 1,2-Hexanediol, Caprylyl Glycol, Steareth-20, Sodium Cocoyl Glutamate, Potassium Sorbate
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Guru Score
Mixed
Early verdict · Few reviews so farWhat they liked
What they flagged
What the gurus are saying
Over sunscreen, this primer flakes dramatically, white specks fly everywhere across multiple test attempts. The reviews split: catastrophic failure every time versus working beautifully with certain foundations. The product's label warns against skincare use, and these results confirm why, this primer is finicky about what layers with it. It smooths pores beautifully, though you will need to test your foundation combo first, or just follow the label.
Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.
Independent of what the gurus think, this is what the published research supports about the main active ingredients here.
Topical vitamin C is an antioxidant with reasonable evidence for dullness and uneven tone. It breaks down in light and air, so how a product is formulated and packaged matters as much as the percentage on the front.
Source: DermNet
Sun protection is the best evidenced way to slow visible ageing, and the filters are what does the work. Mineral and chemical filters both protect when a product is applied thickly enough and often enough, which is where most people fall short rather than on the choice of filter.
Source: DermNet
Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.
Source: DermNet
A lightweight powder primer designed to smooth pores and create a refined, blurred finish. Can be worn under makeup as a base or over makeup as a smoothing layer.
The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 68%.
Peter Thomas Roth Instant FirmX No Filter Primer holds a Guru Score of 68%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected. At least one expert has named it a Top Pick in its category.
Lower-priced primers the gurus still rate highly, versus this mid-range pick.
See how they stack up →Other products the same gurus have weighed in on, plus more from this brand and category.
Compare side by side →Stories where our editors dug into this product or its brand.
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