In Stock
Peter Thomas Roth

Instant FIRMx® Glow-Filter Priming Serum

4.7 · 210 reviews
4,567 ₽

What it is: A hydrating, priming, illuminating serum that visibly lifts and defines your skin right away while sculpting its appearance over time.Skin Type: Normal, Dry, Combination, and Oily Skincare Concerns: Dullness, Uneven Texture, and Loss of Firmness and ElasticityFormulation: Lightweight SerumHighlighted Ingredients:- Actigym™ Clinical Contouring Technology 5%: Sculpts the look of skin over time.- Illuminating Minerals and Diamond Powder: Impart a sheer- and natural-looking glow.- Hyaluronic Acid and Shea Butter: Hydrate and moisturize for a fresh, radiant look.Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance.What Else You Need to Know: This serum leaves skin radiant right away with Illuminating minerals and diamond powder. It also sculpts skin’s appearance over time with a five percent concentration of Actigym™ Clinical Contouring Technology. It visibly blurs imperfections, preps skin for makeup, and imparts a glow-filtered, no-makeup look.Clinical Results: In a 4-week, clinically measured study on 36 women (ages 29 to 55), after 1 week:- This product improved the look of skin’s firmnessIn a consumer-perception study with 36 women (ages 29 to 55), users immediately agreed:- Skin appeared healthy, radiant, and glowy- Skin felt firm and freshIn a 4-week consumer-perception study with 36 women (ages 29 to 55):- 94% agreed skin felt hydrated and soft- 92% agreed skin appeared illuminated- 92% agreed this product provided a perfect canvas for makeup

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What it is: A hydrating, priming, illuminating serum that visibly lifts and defines your skin right away while sculpting its appearance over time.Skin Type: Normal, Dry, Combination, and Oily Skincare Concerns: Dullness, Uneven Texture, and Loss of Firmness and ElasticityFormulation: Lightweight SerumHighlighted Ingredients:- Actigym™ Clinical Contouring Technology 5%: Sculpts the look of skin over time.- Illuminating Minerals and Diamond Powder: Impart a sheer- and natural-looking glow.- Hyaluronic Acid and Shea Butter: Hydrate and moisturize for a fresh, radiant look.Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance.What Else You Need to Know: This serum leaves skin radiant right away with Illuminating minerals and diamond powder. It also sculpts skin’s appearance over time with a five percent concentration of Actigym™ Clinical Contouring Technology. It visibly blurs imperfections, preps skin for makeup, and imparts a glow-filtered, no-makeup look.Clinical Results: In a 4-week, clinically measured study on 36 women (ages 29 to 55), after 1 week:- This product improved the look of skin’s firmnessIn a consumer-perception study with 36 women (ages 29 to 55), users immediately agreed:- Skin appeared healthy, radiant, and glowy- Skin felt firm and freshIn a 4-week consumer-perception study with 36 women (ages 29 to 55):- 94% agreed skin felt hydrated and soft- 92% agreed skin appeared illuminated- 92% agreed this product provided a perfect canvas for makeup

Customer reviews

1.0
verified purchase
Awful color!

The product "tint" is very dark with orange/bronze coloring. If it had been properly labeled, I never would have bought it!

4/8/2026
2.0
verified purchase
Did not work for me

I wanted a product to wear on no-makeup days and to smooth undereyes for concealer application. The color looked orange on my light skin tone. Also, I didn't see any benefit to my undereye area when using it as a primer

1/5/2026
5.0
verified purchase
Love

I’ve been having tough times with primers. I tried this under Haus labs foundation and was blown away. I’m 46. My skin was glowing.

6/27/2024
5.0
verified purchase
NOT incentivized!

I’m unsure if there are any reviews that are not incentivized, so I’m leaving one that definitely is not incentivized. I saw a review stating there’s glitter in this product?! There is ZERO glitter in this product! I even hesitate to use the word “shimmer”, because it’s not really a shimmer, but it is glowy! It gives the skin a beautiful glow when applied directly, & it adds a beautiful glow to foundation when mixed in before applying. After using this product for a few weeks, it has made a wonderful & noticeable difference in my skin’s texture, pore size & I’ve noticed a firming of my skin! I absolutely love this product & I would recommend anyone try it! Don’t be afraid of the “orange-y” color. It doesn’t show up orange when applied directly to the skin, & it hasn’t changed the shade of my foundation when I mix it in before applying! This has become one of my favorite products. I use it every day whether I’m wearing foundation or not, & I definitely recommend giving this a try. It is silicone based. I’m 50 years old & I have a pretty fair/light skin tone. For reference, in Nars Sheer Glow foundation I wear Copenhagen, in Ciele foundation I wear shade 04, Mirenesse foundation I wear shade Vienna. I always set my foundations using either Laura Mercier translucent loose powder, Patrick Starrr One Size loose powder and/or Givenchy Prism Libre 3. I hope this review, & the referencing of the shades of foundation, helps.

6/15/2024
5.0
verified purchase
Allergic

Be careful, I got one swollen eye lol. Make sure to test it somewhere else like your arm or something before trying on your face. I have never had any allergic reaction to anything in my 34 years. super odd. I had a promo sample I got in the mail maybe it was expired. of

6/29/2025
5.0
verified purchase
Important part of my makeup routine

I love this stuff. Gives me a beautiful glow and when I apply my makeup it goes on so much smoother, takes less makeup to get the desired result and smooths pores so I don’t look cakey. The bronze color intimidated me at first because I am really fair and it looks really dark but it blends with any skin tone seemlisy

5/12/2025
2.0
verified purchase
Not a good primer

It wasn’t what I expected. I had high hopes . It’s definitely not good for a primer, I have to use my milk primer with it. I do see a very little glow after applying but that’s it.

3/10/2025
5.0
verified purchase
Really pretty on the skin

I don't know about the claims of skin improvement after time(just got this yesterday), but it really looks and feels nice on the skin!! I am loving it so far. I wish I had bought 2 during the 50% off sale!

1/22/2025
3.0
verified purchase
Good product- terrible package.

I like the product, but as some others have said, the container is terrible. It's broken, and globs come out. I'm not even sure how it's supposed to dispense. A rubber ring fell out along..

11/30/2024
3.0
verified purchase
Not impressed

It's ok not quite what i expected. I can't use it alone as it doesn't have the coverage or look I'm looking for. I won't buy it again.

10/16/2024