FaceTheory Polypep Collagen Boosting Serum S8 — Efficacy 3.8/5.0, Safety 4.9/5.0 | DemythSkin
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[ DemythSkin Verdict ]
FaceTheory Polypep Collagen Boosting Serum S8

FaceTheory Polypep Collagen Boosting Serum S8

SerumAnti-aging, collagen boosting, fine lines
Efficacy
Solid
3.8 / 5.0
Safety
Excellent
4.9 / 5.0
System Verdict
Solid peptide-driven anti-aging serum with gentle PHA exfoliation, but peptides in low-mid concentration limit transformative results. Efficacy score of 3.8 reflects strong peptide synergy (Caprooyl Tetrapeptide-3 for collagen signaling, positioned ~8th suggesting ~0.5-1% concentration) paired with 3-5% gluconolactone (PHA effective at skin-friendly pH ~3.5-4.0 inferred from citric acid buffering), plus barrier-supporting urea/glycerin/HA; deducts for no high-concentration retinoid or vitamin C anchor and peptides not in top 5 positions, capping at excellent but not elite clinical potency.
Active Ingredients Detected
A Tier: Good BasicsProven Results
AquaUreaGlycerinSodium Hyaluronate
B Tier: Supporting IngredientsPromising Ingredients
PropanediolGluconolactoneDextranCaprooyl Tetrapeptide-3Sodium PhytateCamellia Sinensis Leaf ExtractCentella Asiatica Flower/Leaf/Stem ExtractCitric AcidPotassium Sorbate
C Tier: Marketing IdolsHype | Limited or Weak Data
Chamomilla Recutita Flower Extract
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DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.