Lat. Hydration · Long. BarrierIndependent skincare field guide — 204 products mapped · updated October 2026
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Peter Thomas Roth FirmX Growth Factor SerumPeter Thomas Roth FirmX Growth Factor Serum (view 2)Peter Thomas Roth FirmX Growth Factor Serum (view 3)Serums

Serumsby Peter Thomas Roth

Peter Thomas Roth FirmX Growth Factor Serum

Peter Thomas Roth FirmX Growth Factor Serum delivers a sophisticated blend of peptides and growth factor technology aimed at improving skin firmness and elasticity.

4.3
Dewy Atlas score4.3 / 5
  • Results4.6
  • Gentleness4.0
  • Texture4.4
  • Value4.3
  • Firms and lifts skin
  • Improves elasticity
  • Lightweight fast absorption
Skin type
All skin types
Texture
Lightweight serum
Size
1 fl oz / 30 ml
Key ingredient
Growth factors, peptides
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Overview

What it is & who it suits

Peter Thomas Roth FirmX Growth Factor Serum is a results-driven treatment designed for those seeking firmer, more resilient, youthful-looking skin. Formulated with a blend of growth factors, peptides, and skin-renewing ingredients, this serum targets the visible signs of aging by working to improve the appearance of skin elasticity and firmness over time. The lightweight, fast-absorbing texture allows it to sink into the skin quickly without leaving behind a greasy or heavy residue, making it an easy addition to both morning and evening skincare routines.

What sets this serum apart is its focus on supporting the skin's natural structural proteins, helping to visibly reduce the look of fine lines and sagging while promoting a smoother, more supple complexion. Regular use helps the skin appear more contoured and lifted, with a renewed sense of bounce and resilience. The formula is designed to work well on its own or layered beneath moisturizers and other treatments, fitting seamlessly into a comprehensive anti-aging regimen without disrupting the efficacy of other products.

Ideal for mature or aging skin types, as well as anyone looking to proactively address early signs of skin laxity, Peter Thomas Roth FirmX Growth Factor Serum delivers a potent dose of skin-firming technology in every bottle. Its luxurious yet practical formulation reflects the brand's reputation for combining clinical-grade ingredients with a pleasant, user-friendly application experience. Whether used as a targeted treatment for areas of concern or applied all over the face and neck, this serum offers a dependable option for those committed to maintaining a firmer, more youthful-looking visage.

Key features

  • Advanced growth factor technology blended with peptides
  • Formulated to visibly firm and lift skin
  • Lightweight, fast-absorbing serum texture
  • Helps improve elasticity and reduce fine lines
  • Suitable for daily use on face and neck

Specifications

The formula, by the numbers

Volume
1 fl oz / 30 ml
Skin Type
All skin types
Key Ingredients
Growth factors, peptides
Texture
Lightweight serum
Usage
AM/PM application

Pros & cons

What we liked, what we didn’t

Pros

  • Noticeable firming effect with consistent use
  • Absorbs quickly without greasy residue
  • Layers well under moisturizer and makeup
  • Pleasant, lightweight feel on skin
  • Formulated without parabens

Cons

  • Premium price point compared to drugstore serums
  • Results take several weeks of regular use
  • Bottle size may run out quickly with daily application
  • Some users report a mild fragrance
4.3Our score

The verdict

Peter Thomas Roth FirmX Growth Factor Serum delivers a sophisticated blend of peptides and growth factor technology aimed at improving skin firmness and elasticity. While it requires patience and consistent application to see visible results, most users find the investment worthwhile for smoother, firmer-looking skin over time.

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