Brand trust and loyalty
Many reviewers explicitly bought it because they already love ROUND LAB products (sunscreen, other Birch Juice line items) and trust the brand's gentle, low-irritation formulas.
Word of mouth / influencer and friend recommendations
Several reviewers mention buying because a friend, blogger, or YouTuber recommended the mask or praised its hydration power.
Repurchase after trial
A large number of reviews are explicit repurchases, with customers moving from single trial sheets to buying full boxes after being satisfied.
Sales, promotions, and value pricing
Multiple reviewers cite discounts, bundled sunscreen gifts, or low price as the reason for purchase, and note the mask feels affordable for daily use.
Curiosity about gel-type masks
Some buyers purchased specifically to try a gel/jelly-type sheet mask format for the first time, drawn by its 'double gel' novelty versus standard sheet masks.