— · Serum
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4.8
33 reviews
Rating breakdown
Most-mentioned keywords
Why consumers buy
Repurchase and Brand Loyalty
Multiple reviewers explicitly mention buying this product 2+ times, with some noting they've used approximately 5 bottles. The product generates strong repeat-purchase behavior driven by proven efficacy for their skin type.
Sensitive Skin Suitability
Consumers specifically bought this product because ISOI brand reputation for non-irritating formulas appealed to them, and reviews confirm it calms irritated/reddened skin and works for acne-prone individuals without exacerbating conditions.
Gift Giving
Several reviewers purchased this as a gift for friends, mothers, and parents, suggesting it is perceived as a safe, well-packaged prestige product suitable for gifting.
Friend and Staff Recommendations
Purchase decisions were influenced by personal recommendations from friends and retail staff at Olive Young, indicating strong word-of-mouth and in-store advisory support in Korean/Japanese markets.
Perceived Value and Set Packaging
The 40ml ampoule + 10ml cream set format appears to attract buyers seeking a complete moisturizing solution at a perceived good value point.
How they use it
Daily Routine Serum Step
Reviewers describe using this as a regular, frequent daily ampoule in their skincare routine, typically applied before creams to layer for enhanced hydration.
Sentiment breakdown
Share of analyzed reviews by overall sentiment.
Winter and Dry Season Focus
Multiple mentions of using this product specifically during winter months or when experiencing exceptional dryness, with one reviewer noting they used it throughout an entire winter season.
Layering with Matching Cream
Consumers report applying the ampoule, then finishing with the included cream from the same line for optimal results, particularly before makeup application.
Extended Contact Time
Reviews suggest the product is applied and left to absorb for a few minutes before applying additional products, indicating it is not a quick-absorption formula.
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