Peter Thomas Roth Instant FIRMx Glow-Filter Priming Serum — Illuminating, 5% Actigym Contouring

Instant FIRMx Glow-Filter Priming Serum is a lightweight, illuminating priming serum that brightens and blurs while helping sculpt the look of cheeks, chin and jawline with continued use.

This priming serum from Peter Thomas Roth blends a luminous finish with targeted contouring technology. Formulated with illuminating minerals and diamond powder for immediate radiance, plus 5% Actigym Clinical Contouring Technology — a fermented, marine-derived ingredient — it preps skin for makeup or a fresh, glow-filtered bare-skin look. Lightweight and hydrating, it smooths surface texture and reflects light to diminish the appearance of imperfections without heavy shimmer or greasiness.

How does this serum make skin look more lifted right away?

The instant effect comes from light-reflecting pigments and ultra-fine diamond powder that scatter light across the face, creating the impression of higher cheekbones and a sharper jawline. It visually evens tone and softens the look of pores and fine lines so skin reads smoother in photos and close-up.

• Illuminating minerals and diamond powder for immediate radiance
• Sheer, non-greasy texture that blurs imperfections
• Works under foundation or as a stand-alone glow primer

Will it actually change facial contours over time?

The formula includes 5% Actigym, a fermented marine-derived ingredient designed to support the appearance of facial contour when used daily. Results are gradual and visual — with consistent application you may notice a subtly more defined look to cheeks, chin and jawline over weeks of use.

• 5% Actigym Clinical Contouring Technology for targeted contouring support
• Daily application recommended for cumulative effects
• Non-invasive, topical approach to a sculpted appearance

How do I use the priming serum in my routine?

After cleansing and moisturizing, dispense a small amount and smooth evenly across face and neck. Allow it to absorb for a minute before applying foundation, tinted moisturizer, or sunscreen; it also works beautifully alone for a polished, no-makeup glow.

• Use morning or evening as part of skincare or before makeup
• Start with a pea-sized amount and build coverage if needed
• Apply gently upward along jawline and cheeks for sculpting effect

Is this product suitable for my skin tone and type?

The lightweight, sheer formula blends onto all skin tones without leaving a noticeable cast, making it versatile for many complexions. Its hydrating base is friendly to normal, dry, combination, and many oily skin types; however, patch testing is advised for sensitive skin or for anyone concerned about shimmer or new actives.

• Sheer finish designed to flatter a wide range of skin tones
• Hydrating texture works well under makeup or alone
• Patch test if you have reactive or very sensitive skin

Who is this for: Peter Thomas Roth Instant FIRMx Glow-Filter Priming Serum is aimed at anyone who wants immediate radiance plus the potential for longer-term contour definition. Choose it if you want a light-reflecting base that blurs texture, layers well under cosmetics, and includes an active designed to promote a more sculpted appearance with continued, daily use. Ideal for beauty lovers who prefer multitasking products that simplify morning routines while enhancing photos and in-person radiance.

Ingredients

Water/Aqua/Eau, Glycerin, Butylene Glycol, Isononyl Isononanoate, Citrus Aurantium Bergamia (Bergamot) Fruit Water, Dimethicone, Butyrospermum Parkii (Shea) Butter, Caprylic/Capric Triglyceride, Glyceryl Stearate, Polyglyceryl-6 Distearate, Cetearyl Alcohol, Sorbitan Stearate, Isostearyl Alcohol, Mica, Butylene Glycol Cocoate, Bacillus/Soybean Ferment Extract, Diamond Powder, Niacinamide, Sodium Hyaluronate, Sodium Hydroxide, Citric Acid, Glutamic Acid, Glycine, Histidine, Isoleucine, Leucine, Lysine, Phenylalanine, Alanine, Arginine, Proline, Serine, Threonine, Tyrosine, Valine, Sodium Phytate, Sodium Lactate, Silica, Ethylcellulose, Potassium Sorbate, Sodium Benzoate, Hydroxyethylcellulose, Aspartic Acid, Disodium Phosphate, Polysorbate 60, Sodium Phosphate, Polysilicone-11, Titanium Dioxide, Ethylhexylglycerin, Dimethicone Crosspolymer, Carbomer, Polymethylsilsesquioxane, Iron Oxides/CI 77491, Phenoxyethanol.