What are the reviewer/users concerns about this product?

Discussed in this Revios review by @proantony. Caused increased oiliness and daily breakouts on oily skin; Did not deliver clear skin for oily skin type despite fading dark spots; May not be suitable for acne-prone skin without prior testing Did not deliver clear skin for oily skin type despite fading dark spots: Similar concerns cited by 1 other reviewer. See also on Revios: Estelin rosehip niacinamide serum isn't for me — https://www.revios.net/reviews/hZgQyDJt

What are the positive things reviewed about this product?

Discussed in this Revios review by @proantony. Brightens dull skin and fades dark spots over time; Non-irritating for combination or dry skin types; Skin became smooth after discontinuing use; Contains niacinamide and rosehip — named actives with visible effect Brightens dull skin and fades dark spots over time: Similar claims cited by 5 other reviewers. See also on Revios: Estelin Niacinamide Serum Review — https://www.revios.net/reviews/QE0V66n1; My Experience Using Estelin Niacinamide Face Serum — https://www.revios.net/reviews/2RXOBOBN; Estelin Niacinamide Face Serum Review — https://www.revios.net/reviews/gJEFedG8 Non-irritating for combination or dry skin types: Similar claims cited by 1 other reviewer. See also on Revios: Estelin Niacinamide Face Serum Review — https://www.revios.net/reviews/gJEFedG8 Contains niacinamide and rosehip — named actives with visible effect: Similar claims cited by 1 other reviewer. See also on Revios: Estelin rosehip niacinamide serum isn't for me — https://www.revios.net/reviews/hZgQyDJt

What are the information about this product?

Discussed in this Revios review by @proantony. Best for combination or dry skin types; Not recommended for oily skin due to increased oil production; User discontinued use after noticing breakouts

What should I look for when I want to buy this product?

From this Revios review by @proantony, here is what to look for when buying Estelin Rosehip Niacinamide Spots Fading Face Serum: Before buying this serum, consider your skin type — it may not suit oily skin. Check if you’re prone to breakouts when using niacinamide. Confirm if you’re targeting dark spots or overall brightness. Compare with other serums if you have sensitive or acne-prone skin. Consider patch testing first if you have oily skin.