Word-of-mouth and social proof
Multiple reviewers explicitly mention purchasing after hearing positive comments ('word-of-mouth') or reading good reviews ('口コミもよく'). The product's reputation drove consideration and conversion.
Upsizing from smaller format
Several customers tried the 30ml version first and were satisfied enough to purchase the larger 100ml size for better value and extended use.
Gift-giving occasion
Premium packaging (clean design, heavy 100ml volume) made it an attractive gift choice; reviewers note recipients were pleased with the purchase.
Ingredient reputation and brand trust
References to 'Cell Lab' and the formula's mild, effective ingredients suggest consumers trust the brand's formulation for universal skin compatibility.
Seasonal appropriateness
One reviewer specifically noted it 'would be nice to wear in summer,' indicating perceived suitability for warm-weather skincare routines.