Influencer/creator collaboration (Imbora/inbora)
Many Japanese and Korean reviewers cite watching the collaborating makeup artist's (임보라/インバラ) tutorials or social content as the direct reason for purchase, describing it as a must-buy collab palette.
All-in-one convenience
Buyers repeatedly say a single palette covers eyeshadow, eyeliner, eyebrow, blush, and under-eye/'tears bag' makeup, making it attractive for busy or minimalist routines.
Repurchase of trusted brand/line
Numerous reviewers mention already owning other numbers/colors in the same peripera series and buying additional shades because previous ones performed well ('捨て色がない' - no wasted colors).
Affordable price point
Several reviews explicitly mention reasonable pricing and coupon/discount purchases as a reason to buy, especially compared to higher-end (department store) palettes.
Social media buzz / viral trend
Reviewers mention buying after seeing the palette trend on Twitter/TikTok or because it was frequently sold out, suggesting strong organic social demand.