{"ok":true,"data":{"product":{"brand":"MAC Cosmetics","name":"M·A·CStack Mascara","slug":"mac-cosmetics-m-a-cstack-mascara","product_url":"/products/mac-cosmetics-m-a-cstack-mascara","brand_url":"/brands/mac-cosmetics","subcategory":"mascara","formulation":"liquid","finish":null,"price_tier":"mid_range","enriched_price":"$29.00","enriched_price_usd":29,"retailers":["Sephora","Ulta","Amazon","MAC Cosmetics"],"key_ingredients":[],"claims":["volumizing","lengthening","clump-resistant","buildable"],"consensus_summary":null,"consensus_tagline":null,"gtin":null,"shades":[]},"signal":{"total_mentions":1,"holy_grail_count":0,"loves_it_count":0,"worth_trying_count":0,"mentions_count":0,"mixed_count":0,"not_recommended_count":1,"unsponsored_count":1,"sponsored_count":0},"caveats":{"mixed_evidence":false,"single_creator":true,"no_price_data":false,"has_negative":true,"negative_note":"1 creator did not recommend this product."},"tags":{"claims":[],"attributes":[],"good_for":[],"best_for":[],"value":[],"warnings":[{"tag":"transfer_proof","label":"Transfer-proof","group":"attribute","polarity":"negative","mention_count":1,"product_count":1,"source_type":"llm_tagger","sample_quote":"I prefer the Mac Stack Elevated versus this one. The Mac Stack Elevated does not transfer on me, but this one does.","warning_text":"transfers / smudges","provenance":[{"creator_handle":"clairekookoo","creator_name":"clairekookoo","channel_url":"https://www.youtube.com/@clairekookoo","video_url":"https://www.youtube.com/watch?v=T7ejT75mIzI","video_title":"Grwm in a heat wave with wet hair and new mac blushes","video_date":"2026-05-21"}]}]},"creators":[{"handle":"clairekookoo","display_name":"clairekookoo","profile_url":"/creators/clairekookoo","channel_url":"https://www.youtube.com/@clairekookoo","specialty":[],"years_active":null,"subscriber_count":6710,"endorsement_strength":"not recommended","is_sponsored":false,"video_titles":["Grwm in a heat wave with wet hair and new mac blushes"],"quotes":[{"text":"I'm going to do a combination for mascara of the Mac Stack regular and the Lancôme Définicils.","timestamp_start":1198.8,"timestamp_end":1205.24,"timestamp_start_formatted":"19:58","video_url":"https://www.youtube.com/watch?v=T7ejT75mIzI&t=1198s","sentiment":"positive","topics":["layering","combination"],"mentions_variant":null},{"text":"The Mac Stack does smudge.","timestamp_start":1216.8,"timestamp_end":1221.3714285714286,"timestamp_start_formatted":"20:16","video_url":"https://www.youtube.com/watch?v=T7ejT75mIzI&t=1216s","sentiment":"negative","topics":["smudging","transfer"],"mentions_variant":null},{"text":"I prefer the Mac Stack Elevated versus this one. The Mac Stack Elevated does not transfer on me, but this one does.","timestamp_start":1265.76,"timestamp_end":1271.28,"timestamp_start_formatted":"21:05","video_url":"https://www.youtube.com/watch?v=T7ejT75mIzI&t=1265s","sentiment":"negative","topics":["smudging","transfer","prefers elevated version"],"mentions_variant":null}]}],"limitations":["Evidence-tag coverage is creator-dependent. Absence of a skin tone, white-cast, fragrance-free, fungal-acne-safe, or pregnancy-safe tag means not stated, not false.","Evidence is from YouTube creators only — not clinical trials or dermatologist studies."]}}