Anti-hair-loss reputation
Many buyers purchased specifically because Dr.FORHAIR is known as a scalp-care/anti-hair-loss brand, often after trying the original line or seeing recommendations for thinning hair or hair loss concerns.
Multi-scent trial format
The special set includes the full-size bottle plus two travel-size bottles of the other scents, which reviewers repeatedly cite as a reason to buy since it lets them sample Earl Grey Bliss, Sweet Delight, and April Muguet before committing to one.
Word-of-mouth and influencer/staff recommendation
Several reviewers mention buying after a YouTube video, in-store staff recommendation while visiting Korea, or a friend/sibling's suggestion.
Gifting
Multiple reviews describe buying the set as a gift for a husband, brother, son, mother, or friend, often citing dandruff, sensitive scalp, or hair loss as the recipient's concern.
Repurchase/loyalty
A large number of reviewers explicitly state this is their 2nd, 3rd, or even unspecified 'many times' repurchase, indicating strong repeat-buy behavior once tried.