Where Drunk Elephant A-Passioni Retinol Cream really shines is active ingredient strength, scoring 9.3 compared to Kiehl's Powerful-Strength Line-Reducing Concentrate's 5.8. Its formula features Niacinamide, Retinol, and Palmitoyl Tripeptide-1 in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. Drunk Elephant A-Passioni Retinol Cream scores 8.7 here versus 6.7 for Kiehl's Powerful-Strength Line-Reducing Concentrate. That difference comes down to how each formula is built — the ingredient list tells the story.
Drunk Elephant A-Passioni Retinol Cream brings Niacinamide, Retinol, and Palmitoyl Tripeptide-1 as actives, while kiehl's Powerful-Strength Line-Reducing Concentrate relies on Ascorbic Acid, Ascorbyl Glucoside, and Adenosine. 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 A-Passioni Retinol Cream gets the nod here with its 9.0 overall score — you're getting more for a similar outlay.