💎 Serum
Peter Thomas Roth FIRMx Collagen Serum
79
Peter Thomas RothB
⏳Anti-Aging💦Hydrating
👃Fragrance-Free💚Allergen-Free✅Paraben-Free🧪Alcohol-Free
Peter Thomas Roth Peter Thomas Roth FIRMx Collagen Serum is a serum with 2 active ingredients. Key actives: Collagen, Niacinamide, Caffeine. Fragrance-free.
View product ↗Warnings
- •3 potential irritants in the formula — introduce gradually.
Ingredient Breakdown (8 INCI · 3 active)
- 0Aqua/Water
- 1Glycerin
- 2CollagenACTIVE
- 3Hexapeptide-9
- 4Sodium Hyaluronate
- 5NiacinamideACTIVE
- 6Squalane
- 9CaffeineACTIVE
Product Info
Type
Serum
Price
$74.99
Certifications
👃 Fragrance-Free💚 Allergen-Free✅ Paraben-Free🧪 Alcohol-Free
Score Breakdown
Efficacy
79
🧪Ingredient Quality33.5 / 45
- ✓2 high-impact actives: Collagen Type III, Niacinamide
- ✓3 supporting actives (Tier 2)
🎯Concentration Signal14.5 / 15
- ⚠No % concentrations on the label — strength inferred from INCI order
- ↑Disclose the % of each headline active
🏆Evidence Backing12.6 / 15
- ✓Average evidence 84/100 across 9 matched actives
- ✓7 actives with strong evidence (≥80/100)
🧬Formulation Sophistication12 / 12
- ✓7 distinct ingredient classes — well-rounded formula
- ✓Synergy: Hyaluronic Acid + Glycerin · Niacinamide + HA · Panthenol (Vitamin B5) + Niacinamide
📋Functional Completeness6 / 8
- ✓Carries the active classes expected for this product type
🛡️Base Formula Credit0 / 5
Safety
100
Starts at 100; each row below subtracts points up to its cap.
🔥Irritation Risk−3 / 18
- ✓3 mild ingredients flagged at low irritation only
🌿Fragrance0 / 10
- ✓Fragrance-free
⚠️Allergens0 / 10
- ✓No EU 26 fragrance allergens detected
🚫Endocrine Concern0 / 15
- ✓No ingredients flagged for endocrine activity
💎Comedogenicity−1.4 / 7
- ⚠Moderate comedogenic potential (avg 1.0/5)
🔀Formulation Conflicts0 / 10
- ✓No antagonistic ingredient combinations
✨Clean-Formula & Transparency+4 / 8
- ✓Short-ingredient-list bonus: +2.0
- ✓Transparency bonus: +2.0 (clear INCI disclosure)
Overall Score79/100
Overall = 50% Efficacy + 50% Safety. No bonus pad — hitting 100 requires both dimensions to be near-perfect. How scoring works →