Large size = perceived value
Reviewers repeatedly express shock at the huge 300mL tube and describe it as a bargain that lasts many months, driving initial purchase decisions.
Repeat/loyalty purchases
A large share of reviews are 2nd, 3rd, 4th, or 5th repurchases, indicating strong brand and product loyalty once tried.
Influencer and word-of-mouth recommendation
Many buyers cite YouTube reviewers, friends, or viral social media buzz ('went viral for a reason') as the reason they first tried it.
Paired with the Green Cica Collagen cleanser
Several customers bought the Red version after already using or hearing about the Green version, treating them as a complementary AM/PM set.
Gifting
Some reviewers purchased extra units as gifts for friends, family members, or coworkers after positive personal experience.