Brand hype and trust in Beauty of Joseon
Many buyers say they purchased because of the brand's overall reputation and 'hype,' often noting they exclusively use BOJ products or bought this after loving other items in the line.
Gentle formula for sensitive/vitamin-C-intolerant skin
A large share of purchases were driven by word-of-mouth or reviews claiming this is a rare vitamin C serum that doesn't sting or irritate, appealing to buyers who previously reacted badly to other vitamin C products.
Recommendations from influencers, friends, and online reviews
Several reviewers mention receiving 'many recommendations' or hearing about the serum through social media/influencer buzz before trying it.
Repurchase / loyalty
A notable portion of reviews are repeat purchases (2nd, 3rd, 5th bottle), with some buyers stating they buy it in bulk annually or consider it a holy-grail staple.
Gifting
Several reviewers bought the serum as a gift for a mother, daughter, or friend, often citing the gentle formula as suitable for a vitamin-C first-timer.