Low price / cost-performance
Many reviewers explicitly cite the affordable price and 'コスパ' (cost performance) as their main reason for repurchasing every month, even when unsure of results.
Ingredient reputation (retinol + vitamin C + E)
Buyers say they purchased because they 'heard retinol and vitamin C are essential' for skin, valuing that both are combined in one easy tablet.
Repurchase / habit
A large share of reviews are 2nd-4th+ purchases, with buyers continuing 'just in case it's working' or because it has become part of their daily routine.
Stacking with other APLB supplements
Many consumers buy this alongside APLB glutathione or collagen tablets, purchasing it to complete a multi-product beauty supplement stack from the same trusted brand.
Convenience/travel-friendly format
Reviewers frequently mention the small bottle and tablet size as a purchase driver, noting it's easy to carry while traveling or keep in a bag.