Where Drunk Elephant Protini Polypeptide Firming Refillable Moisturizer really shines is active ingredient strength, scoring 9.8 compared to Peter Thomas Roth Peptide Skinjection™ Amplified Wrinkle-Fix Refillable Serum's 4.3. Its formula features Nymphaea Alba Root Extract, Sh-Oligopeptide-1, and Sh-Oligopeptide-2 in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. Peter Thomas Roth Peptide Skinjection™ Amplified Wrinkle-Fix Refillable Serum scores 9.8 here versus 7.0 for Drunk Elephant Protini Polypeptide Firming Refillable Moisturizer. That difference comes down to how each formula is built — the ingredient list tells the story.
Drunk Elephant Protini Polypeptide Firming Refillable Moisturizer brings Nymphaea Alba Root Extract, Sh-Oligopeptide-1, and Sh-Oligopeptide-2 as actives, while peter Thomas Roth Peptide Skinjection™ Amplified Wrinkle-Fix Refillable Serum relies on Saccharomyces Lysate, Acetyl Hexapeptide-8, and Pentapeptide-18. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Both sit in the premium bracket, so value comes down to formulation quality. Drunk Elephant Protini Polypeptide Firming Refillable Moisturizer gets the nod here with its 8.7 overall score — you're getting more for a similar outlay.