— · Serum
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4.7
155 reviews
Rating breakdown
Most-mentioned keywords
Why consumers buy
Korean Beauty Hype & Social Proof
Many consumers purchased based on the product's viral popularity in Korea, influencer recommendations on YouTube and social media, and its top-ranking status on marketplaces like OliveYoung. The double pack positioning encourages trial and gifting.
Repeat Purchase Loyalty
A significant portion of buyers are long-term repeat customers (using for years) who repurchase during sales and discounts. This indicates strong product-market fit among core users.
Gift-Giving Appeal
The double pack format explicitly attracts gift buyers, with reviews mentioning purchases for mothers, sisters, boyfriends, and family members as skincare gifts.
Ingredient & Formula Reputation
Consumers cite trust in the ISOI brand, curiosity about the upgraded formula, and perceived clean/safe ingredients as purchase drivers. The reformulation was a draw for returning customers.
Price-Sensitive Promotions
Bundle discounts, seasonal sales, and coupon stacking drive purchases among price-conscious international buyers seeking value for a premium Korean beauty product.
How they use it
Daily Morning & Evening Routine
Most users incorporate this as a standard serum step in their AM/PM skincare routine, applying it after toner and before moisturizer or cream.
Sentiment breakdown
Share of analyzed reviews by overall sentiment.
Lightweight, Quick-Absorbing Application
Users apply a small amount and report it absorbs within seconds, making it suitable for layering with other serums or as a base before makeup application.
Seasonal Flexibility
Consumers use this year-round but particularly favor it in summer and dry winter months. Some layer it with heavier creams in winter for added hydration.
Combination with Complementary Products
Users often pair it with ISOI eye patches and wrinkle patches (included in bundle), eye creams, and brightening creams for enhanced results.
Night Routine & Sensitive Skin Care
Some consumers reserve it for evening use due to the light film it leaves, and acne-prone users note it calms blemishes when applied consistently before bed.
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