Leïla Poleszczuk

@agirlwithmind is a Belgian English-language beauty educator with 142K followers who splits her content evenly between video and carousel posts, using both formats to deliver science-backed ingredient analysis, brand deep-dives, and celebrity beauty brand rankings — all with a candid, no-PR-filter tone. Her "debunking marketing with science" positioning gives her strong credibility with an audience that values transparency over aesthetics, making her particularly effective for brands with genuinely strong formulations that can withstand scrutiny. Her existing partnership history with Dr. Dennis Gross, Rare Beauty, Haus Labs, and Prequel Skin signals she's already trusted by both prestige and science-forward indie brands, and her recurring series formats ("The Derm Files," her debunking series) suggest she drives sustained attention rather than one-off viral moments. She's an especially strong fit for skincare brands with clinical credentials, K-beauty labels, or derm-founded lines looking to convert an educated, ingredient-literate audience — less ideal for brands that rely on founder hype or trend-driven positioning she'd likely dissect critically.