Brand trust and repurchase
Many reviewers explicitly say they buy because JUNGSAEMMOOL 'never disappoints' and this is their 2nd, 3rd, or more repurchase, often pairing it with the brand's cushion foundation.
Multi-function convenience
Buyers like that it combines primer, sunscreen, and tone-correction in one step, reducing the need for separate products or full foundation.
Influencer/makeup artist association
Several reviewers mention buying because they saw it used in JSM makeup classes, by Won Jung Yo, or on idols like TWICE via YouTube.
Redness/rosacea concerns
Consumers with rosacea or facial redness specifically sought this out, often choosing the green shade, based on word-of-mouth or reviews claiming it cancels redness.
Sample-to-full-size conversion
Multiple reviewers say they received a sample with a foundation purchase, liked it, and then bought the full-size product.