{"title":"Pen Collection","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eVytol's research pen collection provides scientists and independent researchers with pre-filled, independently verified research-grade peptide pens. Every pen in our catalogue is manufactured by our partner laboratory Homopeptides and batch-tested by Janoshik Analytical to ≥99% purity, with a full Certificate of Analysis available on every order.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eOur pen range includes retatrutide (LY3437943), tirzepatide (LY3298176), GHK-Cu, BPC-157, Melanotan 2 and NAD+ — all stored and dispatched from the UK with free tracked 1st Class delivery on every order. Same day dispatch on orders placed before 2pm.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eAll Vytol compounds are supplied strictly for research and laboratory purposes only and are not intended for human use.\u003c\/p\u003e","products":[{"product_id":"ghk-cu-100mg-pen","title":"GHK-Cu Pen | 100mg","description":"\u003cp\u003eCopper GHK 100mg pre-filled research pen. Synthetic copper peptide complex. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":57890812264822,"sku":null,"price":69.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/Vytol_GHK-Cu_100mg_pre-filled_research_pen.png?v=1783242745"},{"product_id":"melanotan-2-10mg-pen","title":"Melanotan 2 Pen | 10mg","description":"\u003cp\u003eMT II 10mg pre-filled research pen. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":57892943397238,"sku":null,"price":40.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/Vytol_Melanotan_2_10mg_pre-filled_research_pen.png?v=1783242896"},{"product_id":"bpc-157-10mg-pen","title":"BPC-157 Pen | 10mg","description":"\u003cp\u003eBPC - 157 10mg pre-filled research pen. Synthetic pentadecapeptide. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":57899911709046,"sku":null,"price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/Vytol_BPC-157_10mg_pre-filled_research_pen.png?v=1783243078"},{"product_id":"nad-100mg-pen","title":"NAD+ Pen | 100mg","description":"\u003cp\u003eNAD+ 100mg pre-filled research pen. Nicotinamide adenine dinucleotide. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":57901535887734,"sku":null,"price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/Vytol_NAD_100mg_pre-filled_research_pen.png?v=1783242567"},{"product_id":"retatrutide-10mg-pen","title":"Retatrutide Pen | 10mg","description":"\u003cp\u003eReta 10mg pre-filled research pen. Triple GIP, GLP-1 \u0026amp; glucagon receptor agonist. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":58196142915958,"sku":null,"price":89.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/BEFORE_AFTER_EAR_CLEANER_PRO_31.svg?v=1779045138"},{"product_id":"retatrutide-20mg-pen","title":"Retatrutide Pen | 20mg","description":"\u003cp\u003eReta 20mg pre-filled research pen. Triple GIP, GLP-1 \u0026amp; glucagon receptor agonist. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":58196147765622,"sku":null,"price":109.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/reta_pen_20mg.png?v=1783201589"},{"product_id":"retatrutide-40mg-pen","title":"Retatrutide Pen | 40mg","description":"\u003cp\u003eReta 40mg pre-filled research pen. Triple GIP, GLP-1 \u0026amp; glucagon receptor agonist. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":58196398473590,"sku":null,"price":149.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/reta_pen_40mg.png?v=1783203380"},{"product_id":"rt-60mg-pen","title":"Retatrutide Pen | 60mg","description":"\u003cp\u003eReta 60mg pre-filled research pen. Triple GIP, GLP-1 \u0026amp; glucagon receptor agonist. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":58196412531062,"sku":null,"price":169.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/reta_pen_60mg.png?v=1783203585"},{"product_id":"tirzepatide-10mg-pen","title":"Tirzepatide Pen | 10mg","description":"\u003cp\u003eTirz 10mg pre-filled research pen. Dual GIP \u0026amp; GLP-1 receptor agonist. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":58196468466038,"sku":null,"price":59.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/BEFORE_AFTEREARCLEANERPRO_75.png?v=1779052003"},{"product_id":"tirzepatide-20mg-pen","title":"Tirzepatide Pen | 20mg","description":"\u003cp\u003eTirz 20mg pre-filled research pen. Dual GIP \u0026amp; GLP-1 receptor agonist. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":58196488356214,"sku":null,"price":69.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/20mg_tirz_pen.png?v=1783204632"},{"product_id":"tirzepatide-40mg-pen","title":"Tirzepatide Pen | 40mg","description":"\u003cp\u003eTirz 40mg pre-filled research pen. Dual GIP \u0026amp; GLP-1 receptor agonist. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":58196530856310,"sku":null,"price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/Vytol_Tirzepatide_40mg_pre-filled_research_pen.png?v=1783241668"},{"product_id":"tirzepatide-100mg-pen","title":"Tirzepatide Pen | 100mg","description":"\u003cp\u003eTirz 100mg pre-filled research pen. Dual GIP \u0026amp; GLP-1 receptor agonist. ≥99% purity, COA included. Free UK delivery. For research use only.\u003c\/p\u003e","brand":"Vytol Peptides","offers":[{"title":"Default Title","offer_id":58196576600438,"sku":null,"price":109.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/files\/Vytol_Tirzepatide_100mg_pre-filled_research_pen.png?v=1783241950"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/9019\/4038\/collections\/BEFORE_AFTER_EAR_CLEANER_PRO_-_2026-06-21T203027.627_d2aafe06-44e7-458b-a2c7-c0d99ac35fa2.png?v=1785058726","url":"https:\/\/vytol.co.uk\/collections\/research-pens.oembed","provider":"Vytol Peptides","version":"1.0","type":"link"}