{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-09-17T12:27:22+00:00","price":"5.49","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B07BK4XMGD?maas=maas_adg_api_577302543738798115_static_12_45&ref_=aa_maas&tag=maas&aa_campaignid=8299fd0ede4342071e38cc1c44b617f8&aa_adgroupid=83a991490a8fc1a7be0f3ea436b00c79_PBSEP_!!!affid!!!_118045_&aa_creativeid=a9f5uaWl7K595v2qofx_aeZ8ENpghEhyhk6ubBKdhIA_atRQs_c"}],"product":{"brand":"EIGSHOW UK","evidence_url":"https://www.mainbuyer.com/evidence/products/eigshow-professional-eyeshadow-primer-brush-flat-concealer-brush-e828-b07bk4xmgd/prices","gtin":null,"id":7428,"model_number":null,"name":"EIGSHOW Professional Eyeshadow Primer Brush, Flat Concealer Brush (E828)","product_url":"https://www.mainbuyer.com/product/eigshow-professional-eyeshadow-primer-brush-flat-concealer-brush-e828-b07bk4xmgd","urn":"MB-AWIN-GB-B07BK4XMGD"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"5.49","historical_low":"5.49","last_observed_at":"2026-09-17T12:27:22+00:00","low_30d":"5.49","low_90d":"5.49","median_price":"5.49","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:27:22+00:00"}}