Repeat purchase / brand loyalty
An extremely high number of reviewers explicitly state this is their 2nd, 3rd, 5th, or an uncountable repeat purchase, often stocking multiple bottles during sales.
Duo/set value and promotions
Many buyers cite the 50mL+50mL duo format and 1+1 style bundling as a key reason for purchase, seeing it as good value for money, especially during sale periods.
Word-of-mouth and social/YouTube recommendation
Several reviewers mention buying after seeing it recommended on YouTube, TikTok, or by friends/family, and some gifted it to family and friends after personal satisfaction.
Sample trial conversion
A few reviewers say they tried a sample first and then purchased the full/duo size after being satisfied with the tone-up and hydration effect.
No-makeup / low-maintenance skin routine
Buyers frequently purchase it specifically to replace foundation on no-makeup days, valuing the tone-up effect as a substitute for base makeup.