- “For the aging care one, the two ingredients that are in that shot are retinol and niacinamide”10:30–10:43
- “I think that this is a little bit redundant because if you remember both of the serums have retinol and niacinamide inside, so I'm like, I don't know about that”13:06–13:17
- “I guess it would just make the retinol and the niacinamide more potent, which is not something, it's possible, but I'm like, it's not very exciting”13:17–13:27
- Source: Exciting Japanese skincare products I've seen in a while - Mar 31, 2026
Matsumoto Kiyoshi
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- “For the elasticity care we have gurishiru gurishin which is that ingredient that I mentioned earlier and we also have cica exosomes”
- “It's supposed to help skin with dryness because as we get older these natural moisturizing factors that keep our face like youthful with that youthful bounciness glow they decrease”14:27–14:32
- Source: Exciting Japanese skincare products I've seen in a while - Mar 31, 2026
Brand note
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.

