{"title":"All","description":"","products":[{"product_id":"intensive-lash-growth-serum","title":"Intensive Lash Growth Serum","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\" data-end=\"3434\" data-start=\"3401\"\u003eA once-nightly formula designed to help natural lashes look longer, fuller and more defined over 8–12 weeks.*\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBring thinning, less visible lashes back into focus.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCreated for lashes that have become shorter, finer or less dense than they used to, Intensive Lash Growth Serum combines a carefully selected prostaglandin analogue with PACT-17® peptides to support the appearance of longer, fuller and better-conditioned lashes.\u003cbr\u003e\u003cbr\u003eThis is Line Theory’s highest-performance lash formula, created for customers seeking the greatest visible enhancement within the Line Theory range.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4.8 ★ rating\u003c\/li\u003e\n\u003cli\u003e2,186 verified reviews\u003c\/li\u003e\n\u003cli\u003eSupports Longer, fuller-looking lashes\u003c\/li\u003e\n\u003cli\u003e3-Month Moneyback Guarantee\u003c\/li\u003e\n\u003cli\u003eWorks with contact lenses \/ lash extensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e3ml Tube - lasts approximately 3 months with a once daily application.\u003c\/p\u003e","brand":"Line Theory","offers":[{"title":"Default Title","offer_id":53129574973706,"sku":"111","price":29.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1600\/1546\/files\/line_theory_lash_serum_main_91b6a3.png?v=1782735161"},{"product_id":"intensive-brow-growth-serum","title":"Intensive Brow Growth Serum","description":"\u003cp\u003eFor brows that have become finer, sparser or less defined over time. Powered by PACT-17® and a prostaglandin analogue, it supports the appearance of fuller-looking, better-conditioned brows with consistent nightly use. Prefer prostaglandin-free? Discover \u003ca href=\"\/products\/precision-brow-growth-serum\" title=\"Precision Brow Growth Serum\"\u003ePrecision Brow Growth Serum\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e3 ml · designed for approximately 12 weeks of nightly use\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e4.8 ★ rating\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003e896 verified reviews\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e98% report healthier-looking brows\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWorks with contact lenses \/ lash extensions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e3-Month Money-back Guarantee\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Line Theory","offers":[{"title":"Default Title","offer_id":53155318989066,"sku":null,"price":29.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1600\/1546\/files\/line_theory_brow_serum_main_6d4f28.png?v=1782735161"},{"product_id":"precision-lash-growth-serum","title":"Precision Lash Growth Serum","description":"\u003cp\u003e\u003cstrong\u003eProstaglandin-free lash care for a gentler daily routine.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLashes can gradually become shorter, finer or less defined over time. Precision Lash Growth Serum offers targeted, prostaglandin-free care for a considered nightly routine.\u003c\/p\u003e\n\u003cp\u003ePowered by PACT-17® peptides, the formula helps condition the lashes and supports the appearance of a fuller, more defined lash line with consistent use. It is created for customers who prefer to avoid prostaglandin analogues while maintaining a precise, performance-led approach to lash care.\u003c\/p\u003e","brand":"Line Theory","offers":[{"title":"Default Title","offer_id":53264113008906,"sku":"112","price":29.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1600\/1546\/files\/precision_lash_serum_square.png?v=1782491343"},{"product_id":"precision-brow-growth-serum","title":"Precision Brow Growth Serum","description":"\u003cp\u003e\u003cstrong\u003eFor brows that have become finer, sparser or less defined over time.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Precision formula combines PACT-17® with a prostaglandin-free base. Used once nightly, it supports the appearance of fuller, better-conditioned and more defined brows over time.\u003c\/p\u003e\n\u003cp\u003e3 ml · designed for approximately 12 weeks of nightly use\u003c\/p\u003e\n\u003cp\u003eCovered by our 3-Month Price Promise Money-Back Guarantee.\u003c\/p\u003e\n\u003cp\u003ePrefer a higher-strength option?\u003cstrong\u003e \u003c\/strong\u003eDiscover\u003cstrong\u003e \u003ca href=\"https:\/\/linetheory.co.uk\/products\/intensive-brow-growth-serum\" title=\"https:\/\/linetheory.co.uk\/products\/intensive-brow-growth-serum\"\u003eIntensive Brow Growth Serum\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e4.8 ★ rating\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003e793 verified reviews\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e98% report healthier-looking brows\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/linetheory.co.uk\/pages\/3-month-moneyback-guarantee\" title=\"https:\/\/linetheory.co.uk\/pages\/3-month-moneyback-guarantee\"\u003e\u003cstrong\u003e3-Month Money-back Guarantee\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Line Theory","offers":[{"title":"Default Title","offer_id":53309236117770,"sku":null,"price":29.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1600\/1546\/files\/Precisionbrowserumsilksquare.png?v=1783187413"},{"product_id":"define-tubing-mascara","title":"Define Tubing Mascara","description":"\u003cp\u003e\u003cstrong\u003ePolished definition for lashes that look finer, shorter or less defined than they used to.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDefine Tubing Mascara coats each lash individually in a lightweight, flexible tube, creating a clean and separated finish without heaviness or clumps.\u003c\/p\u003e\n\u003cp\u003eOne coat gives refined everyday definition. Apply a second coat while the formula is still wet for greater intensity.\u003c\/p\u003e\n\u003cp\u003eAt the end of the day, warm water softens the tubes so they slide away with gentle pressure—without heavy remover, scrubbing or tugging at the lash line.\u003c\/p\u003e\n\u003cp\u003eDesigned for everyday elegance, it gives lashes a refined, lifted appearance without the need for harsh removal. At the end of the day, simply soak lashes with warm water and use gentle pressure to slide the tubes away — no scrubbing, tugging, or heavy remover required.\u003c\/p\u003e\n\u003cp\u003eIdeal for customers who want a polished lash look that feels modern, low-maintenance, and kinder to the delicate eye area.\u003c\/p\u003e","brand":"Line Theory","offers":[{"title":"Black","offer_id":53310998282506,"sku":null,"price":14.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1600\/1546\/files\/mascaraandboxsquare.png?v=1783187551"},{"product_id":"line-theory-gift-card","title":"Line Theory Gift Card","description":"\u003cp\u003eTreat your loved ones to some Line Theory magic! Gift Cards are available in multiple denominations. \u003c\/p\u003e","brand":"Line Theory","offers":[{"title":"£10.00","offer_id":53389799883018,"sku":null,"price":10.0,"currency_code":"GBP","in_stock":true},{"title":"£25.00","offer_id":53389799915786,"sku":null,"price":25.0,"currency_code":"GBP","in_stock":true},{"title":"£50.00","offer_id":53389799948554,"sku":null,"price":50.0,"currency_code":"GBP","in_stock":true},{"title":"£100.00","offer_id":53389799981322,"sku":null,"price":100.0,"currency_code":"GBP","in_stock":true},{"title":"£75.00","offer_id":53389800014090,"sku":null,"price":75.0,"currency_code":"GBP","in_stock":true},{"title":"£150.00","offer_id":53389800046858,"sku":null,"price":150.0,"currency_code":"GBP","in_stock":true},{"title":"£125.00","offer_id":53389800079626,"sku":null,"price":125.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1600\/1546\/files\/giftcard.png?v=1784368844"}],"url":"https:\/\/linetheory.co.uk\/collections\/all.oembed","provider":"Line Theory","version":"1.0","type":"link"}