Pore concerns
The single most common purchase driver is a desire to reduce enlarged or sagging pores, often tied to oily or combination skin and worsening in summer heat.
Influencer/YouTuber recommendation
Multiple reviewers cite specific creators (e.g., 'Director Pi', 'JUNJUN') or general SNS buzz as the reason they decided to try the product.
Brand trust and repurchase
Many buyers already used beplain's cleansing foam/oil and bought the serum expecting similar mild, clean-ingredient quality; a large share are on their 2nd-4th bottle.
1+1 promotional value
The 1+1 special set pricing is repeatedly cited as the deciding factor, with reviewers calling it 'good value' or 'cost-effective' for two 30mL bottles.
Sensitive/low-irritation reputation
Reviewers with sensitive or acne-prone skin purchased it because it was marketed and reviewed as fragrance-free and non-irritating.