{"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":"2026-09-17T12:28:02+00:00","price":"23.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0F9YM4D7Y?maas=maas_adg_api_591525871149210265_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB74de774f6de83da526fb69bcd8ceade5&aa_adgroupid=3beab800e99ac609fad7dedda38e159a_PBSEP_!!!affid!!!_118045_&aa_creativeid=a830zDMUeAQ5dualTShHuaJ6StJSqVY78GZ7rp1zh7n13AA_c"}],"product":{"brand":"LiArty UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/cordless-beauty-7-colour-led-light-therapy-mask-for-face-spa-skin-care-mask-b0f9ym4d7y/prices","gtin":null,"id":8542,"model_number":null,"name":"Cordless Beauty 7-Colour LED Light Therapy Mask for Face Spa Skin Care Mask","product_url":"https://mail.mainbuyer.com/product/cordless-beauty-7-colour-led-light-therapy-mask-for-face-spa-skin-care-mask-b0f9ym4d7y","urn":"MB-AWIN-GB-B0F9YM4D7Y"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"23.99","historical_low":"23.99","last_observed_at":"2026-09-17T12:28:02+00:00","low_30d":"23.99","low_90d":"23.99","median_price":"23.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:28:02+00:00"}}