SPF for lips is rare
Many buyers specifically sought a lip product with sun protection, noting few other lip products on the market offer SPF, making this a key differentiator that drove initial purchase.
Hyaluronic acid + peptide formula
Reviewers cite the ingredient list (hyaluronic acid, peptides) as a reason for purchase, with some referencing dermatologist recommendations that these ingredients help plump and repair lips.
Repeat purchase / loyalty
A very large share of reviews mention this being their 2nd, 3rd, or 4th+ repurchase, indicating strong brand and product loyalty once tried.
Influencer/word-of-mouth recommendation
Several Japanese reviews mention buying based on recommendations from beauty influencers ('美容神ゆりちゃんおすすめ') or friends/family referrals.
Gifting
Some reviewers purchased multiples as stocking stuffers or gifts, citing the cute packaging and universally likeable format.