All scans / Eye creams / Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream
Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream ingredients: is it worth it?
This is a decent cosmetic eye cream with good concealing optics, but the “filling” claim is mostly marketing.

This is a decent cosmetic eye cream with good concealing optics, but the “filling” claim is mostly marketing.
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The efficacy score is driven by a solid base of glycerin, butylene glycol, sodium hyaluronate, dimethicone, and film-formers that can temporarily smooth and blur the under-eye area; caffeine may modestly help puffiness. The peptide and botanical complex are present, but the formula does not show a strongly treatment-level active system or any clear evidence of a high, transformative concentration, so the result is better as a short-term appearance enhancer than a true corrective eye treatment.
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DemythSkin rates Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream 3.3/5 for efficacy and 4.5/5 for safety.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFORMULATION BASE (25)⌄
FULL INGREDIENT LIST⌄
Water/Aqua/Eau, Dimethicone, Butylene Glycol, Cetyl PEG/PPG-10/1 Dimethicone, Glycerin, Polysilicone-11, Bellis Perennis (Daisy) Flower Extract, PEG/PPG-18/18 Dimethicone, sh-Pentapeptide-5, Hieracium Pilosella Extract, Caffeine, Sodium Hyaluronate, Potassium Glutathione Isomerized Linoleate, Glucomannan, Sodium Chloride, Silica, Silica Silylate, Sodium Citrate, Citric Acid, Trihydroxystearin, Ethylhexyl Palmitate, Lauryl Glucoside, Sodium Benzoate, Ethylhexylglycerin, Potassium Chloride, Tetrasodium Glutamate Diacetate, Propylene Glycol, Decyl Glucoside, Trisiloxane, Potassium Sorbate, Sodium Dehydroacetate, 1,2-Hexanediol, Mica, Triethoxycaprylylsilane, Titanium Dioxide (CI 77891), Iron Oxides (CI 77492), Iron Oxides (CI 77491), Iron Oxides (CI 77499), Phenoxyethanol
WHAT EACH INGREDIENT DOES (24)⌄
- Water/Aqua/Eau
- solvent base
- Dimethicone
- silicone emollient
- Butylene Glycol
- humectant solvent
- Cetyl PEG/PPG-10/1 Dimethicone
- silicone emulsifier
- Glycerin
- humectant
- Polysilicone-11
- film former
- Bellis Perennis (Daisy) Flower Extract
- botanical extract
- PEG/PPG-18/18 Dimethicone
- silicone emulsifier
- sh-Pentapeptide-5
- signal peptide
- Hieracium Pilosella Extract
- botanical extract
- Caffeine
- de-puffing agent
- Sodium Hyaluronate
- water-binding humectant
- Potassium Glutathione Isomerized Linoleate
- lipid complex
- Glucomannan
- viscosity modifier
- Sodium Chloride
- tonicity adjuster
- Silica
- texture enhancer
- Silica Silylate
- thickening powder
- Sodium Citrate
- buffering salt
- Citric Acid
- pH adjuster
- Trihydroxystearin
- gelling agent
- Ethylhexyl Palmitate
- emollient ester
- Lauryl Glucoside
- mild surfactant
- Sodium Benzoate
- preservative
- Ethylhexylglycerin
- preservative booster
EXTERNAL CITATIONS
sh-Pentapeptide-5: Official product page and retailer descriptions identify 4% Peptilift peptide technology as a headline feature, but the formula still relies mainly on film formers and humectants for visible smoothing.
Caffeine: Retailer descriptions specifically call out caffeine for reducing the appearance of puffiness and darkness.
Sodium Hyaluronate: The ingredient list includes sodium hyaluronate, supporting temporary hydration and plumping.
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
A cheaper eye cream that scores as high or higher
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Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream: common questions
Is Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream worth it?
Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream scores 3.3 out of 5.0 for efficacy (Mid) and 4.5 out of 5.0 for safety (Very Gentle) on DemythSkin's independent ingredient analysis. This is a decent cosmetic eye cream with good concealing optics, but the “filling” claim is mostly marketing.
What are the key active ingredients in Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream?
Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream contains no gold-standard actives. Its formula is built on supporting and base ingredients rather than clinically transformative actives.
Does Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream contain fragrance or known irritants?
DemythSkin's analysis found no flagged irritants in Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream. It scores 4.5 out of 5.0 for safety.
How is Peter Thomas Roth Peptide Skinjection Fill + Fix Under-Eye Cream scored?
DemythSkin grades every product on two independent scores: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are graded S through D against a database of over 3,000 compounds. Brand and price are not part of the score, and no brand pays for one.
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