Peter Thomas Roth Instant FIRMx Lip Filler 0.3 fl oz

Benefits of Peter Thomas Roth Instant FIRMx Lip Filler 0.3 fl oz

• 2% LineFill™ immediately enhances the look of lip fullness and helps smooth the appearance of lip lines. 
• 1% Maxi-Lip™ peptide complex supports increased lip volume with continued use. 
• 3% Hyaluronic Acid Filling Spheres and nourishing oils hydrate and soften lips for a visibly smoother, supple appearance. 

What you'll notice:

• Lips feel immediately smoother and more hydrated.
• The appearance of vertical lip lines appears softened and diminished.
• Lip contour looks subtly fuller and more defined, providing a polished finish under lipstick or alone.

Clinical Results:

• 100% of participants (n=15, ages 21–54) saw an immediate reduction in the look of lip lines in a 4-hour clinically measured study. 
• 91% of participants (n=33, ages 21–54) agreed their lips looked plumper with moisture in a 5-minute consumer perception study. 

Study details: Peter Thomas Roth internal clinical/consumer perception studies, 2024 (ages 21–54, sample size as above) as published on brand site.

How To Use Peter Thomas Roth Instant FIRMx Lip Filler 0.3 fl oz

1. Apply directly to clean, dry lips and on or around lip lines.
2. Wait at least 3 minutes before applying any other lip products; slight tingling after application is normal. 
3. Use alone as a lip primer or overnight lip treatment; reapply as needed for continued plumping and smoothing effect. 

Pro Tip (from estheticians): For best results in colder months, apply a thin layer nightly as the final step in your routine and then gently press lips together to enhance absorption—wake to softer, fuller lips.

Peter Thomas Roth Instant FIRMx Lip Filler 0.3 fl oz Ingredients

CLINICALLY TESTED / KEY INGREDIENTS

2% LineFill™: Clinically-advanced complex derived from sesame seeds that immediately increases the look of lip fullness and smooths the appearance of lip lines. 

1% Maxi-Lip™ peptide complex: Supports enhanced lip volume over time for a visibly fuller appearance. 

3% Hyaluronic Acid Filling Spheres: Hydrates and plumps lips by binding moisture for a supple, smooth finish. 

INGREDIENTS

Polyisobutene, Squalane, C12-15 Alkyl Benzoate, Hydrogenated Polydecene, Octyldodecanol, Helianthus Annuus (Sunflower) Seed Wax, Simmondsia Chinensis (Jojoba) Seed Oil, Vinyl Dimethicone/Lauryl Dimethicone Crosspolymer, Theobroma Cacao (Cocoa) Seed Butter, Tribehenin, Ethylhexyl Palmitate, Cocos Nucifera (Coconut) Oil, Silica, Caprylic/Capric Triglyceride, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Punica Granatum Seed Oil, Butyrospermum Parkii (Shea) Butter, Dipalmitoyl Hydroxyproline, Palmitoyl Tripeptide-1, Sesamum Indicum (Sesame) Seed Extract, Glucomannan, Dimethyl Isosorbide, Glyceryl Caprylate, Linoleic Acid, Tocopheryl Acetate, Palmitic Acid, Mentha Piperita (Peppermint) Oil, Tocopherol, Sodium Hyaluronate, Capsicum Frutescens Fruit Extract, Linolenic Acid, Trihydroxystearin, Sorbitan Isostearate, Cococaprylate/Caprate, Glyceryl Undecylenate, Polyhydroxystearic Acid, Polyglyceryl-6 Polyricinoleate, Dilinoleic Acid/Butanediol Copolymer, Disodium Stearoyl Glutamate, Water/Aqua/Eau, Castor Oil/IPDI Copolymer, Mica, Tin Oxide, Titanium Dioxide (CI 77891), Iron Oxides (CI 77491)

Skin Elite is dedicated to maintaining the accuracy of the ingredient lists on this website. However, because ingredients are subject to change, we cannot guarantee that these lists are complete, up-to-date and/or error-free. For an accurate listing of ingredients in each product, please refer to your product packaging.

FAQs

Can I use this while pregnant or nursing?
The brand does not provide explicit guidance for use during pregnancy or nursing; since this product includes active smoothing technologies and peptide complexes, consult your physician before use.

Can I use this with retinol/retinal/acid exfoliants?
Yes—but because this formula includes active smoothing and plumping actives, layering multiple strong treatments at once may increase sensitivity. Use as directed and monitor how your lips respond.

Is it suitable for sensitive skin?
The formula is designed for normal, dry, combination and oily skin types. If your lips or surrounding area are highly sensitive or reactive, apply a thin amount initially and patch test before full use.

How long until I see results?
Some users notice smoother lips after the first application thanks to LineFill™ technology; fuller-looking lips and reduced lines become more visible with consistent use over days to weeks. 

Can I use it around the eyes?
No—this product is designed specifically for use on lips and lip lines. Avoid applying to the eye area or mucous membranes unless otherwise advised by your physician.

Storage and shelf life?
The brand does not publish a specific shelf-life timeframe; store the product in a cool, dry place away from direct sunlight and use within the period-after-opening (PAO) timeframe printed on packaging.

People Also Ask

Is Peter Thomas Roth Instant FIRMx Lip Filler good for acne-prone skin?
This product is designed for lip volume loss, smoothing lip lines and hydration—not specifically for acne. While it is hydrating and non-comedogenic in many use cases, it’s not marketed as a breakout treatment.

Can you use Peter Thomas Roth Instant FIRMx Lip Filler every day?
Yes—to support ongoing smoother, fuller lips; apply as needed, daily use is acceptable for many users unless sensitivity occurs. 

Does Peter Thomas Roth Instant FIRMx Lip Filler work under makeup?
Yes—it can serve as a lip primer or pre-makeup base thanks to its smoothing and hydrating balm texture. Use before lipstick or gloss after the formula has absorbed.

How long does a .3 fl oz tube of Peter Thomas Roth Instant FIRMx Lip Filler last?
Usage varies by application frequency and amount applied; many users find a 0.3 fl oz size may last several months when used once or twice daily as part of a lip routine.

Is Peter Thomas Roth Instant FIRMx Lip Filler fragrance-free / oil-free?
The brand indicates the formula is free of parabens and mineral oil and is described as a “cream-to-balm” with oils (coconut, squalane) included. It is not explicitly labeled fragrance-free or oil-free.