Matsumoto Kiyoshi

Matsumoto Kiyoshi's M Cure line is a Japanese drugstore brand that loads its formulas with trendy, evidence-based ingredients — think PDRN, copper peptides, multiple ceramides, and niacinamide — but the execution raises questions. The M Cure Derma PD Serum 1% packs a dense ingredient list including retinol, niacinamide, and copper peptides, though one creator questions how well those peptides hold up in the formula.