--- title: "L-Carnitine UK Suppliers — 9 Verified Sellers (2026) - PeptideSupermarket®" description: "A directory of 9 verified UK L-Carnitine suppliers, with prices from £6.00, ratings, delivery times and lab-testing details compared side by side." url: "https://peptidesupermarket.co.uk/l-carnitine-uk-supplier" site: "PeptideSupermarket®" country: "United Kingdom" --- [Home](https://peptidesupermarket.co.uk) › [Peptides](https://peptidesupermarket.co.uk/compare-peptide-prices-uk) › [L-Carnitine](https://peptidesupermarket.co.uk/peptide/l-carnitine) › L-Carnitine UK Suppliers The UK L-Carnitine Directory # L-Carnitine UK Suppliers Our directory of verified UK **L-Carnitine** suppliers — 9 sellers compared on price (from **£6.00**), ratings, delivery speed and independent lab testing, so you can choose with confidence. 9 Listed suppliers £6.00 From ## Supplier listings 600mg dosage 01 [Alpha Peptides®](https://peptidesupermarket.co.uk/suppliers/alpha-peptides) ★5.0 (4) £20.00 [Visit supplier](https://peptidesupermarket.co.uk/go/019da535-b26d-7358-a60d-c9dcd5653969?loc=keyword_price_table) 02 [PeptideStock](https://peptidesupermarket.co.uk/suppliers/peptidestockcouk) ★4.6 (14) Est. 2026 1–2 day delivery Lab tested £17.99 [Visit supplier](https://peptidesupermarket.co.uk/go/01a16b3d-b349-714a-986e-954b5451e38e?loc=keyword_price_table) 03 [Lucid Peptides](https://peptidesupermarket.co.uk/suppliers/lucid-peptides) £17.95 [Visit supplier](https://peptidesupermarket.co.uk/go/019f5ed9-e20a-7011-bf78-520906b601ab?loc=keyword_price_table) 04 [Opti-Gen Peptides](https://peptidesupermarket.co.uk/suppliers/opti-gen-peptides) ★4.9 (8) £6.00 [Visit supplier](https://peptidesupermarket.co.uk/go/01a09135-eca3-72a8-9191-1c67a115eaf1?loc=keyword_price_table) 05 [Precision Peptide](https://peptidesupermarket.co.uk/suppliers/precision-peptide) ★5.0 (1) £15.00 [Visit supplier](https://peptidesupermarket.co.uk/go/019f52e5-a733-73d3-885d-e9a93e0950da?loc=keyword_price_table) 06 [Precision Peptide](https://peptidesupermarket.co.uk/suppliers/precision-peptide) ★5.0 (1) £45.00 [Visit supplier](https://peptidesupermarket.co.uk/go/019f52e5-a7b5-727e-8956-0fc618207c95?loc=keyword_price_table) 07 [Absolute BioLab](https://peptidesupermarket.co.uk/suppliers/absolute-biolab) £15.00 [Visit supplier](https://peptidesupermarket.co.uk/go/019f9cfe-a79b-71f1-80b9-5ade6c002374?loc=keyword_price_table) 08 [Genopept](https://peptidesupermarket.co.uk/suppliers/genopept) Est. 2026 1–2 day delivery Lab tested £20.00 [Visit supplier](https://peptidesupermarket.co.uk/go/01a0f557-d08a-7306-8fc1-897ac95ec3f2?loc=keyword_price_table) 09 [Research Peptides](https://peptidesupermarket.co.uk/suppliers/research-peptides) Lab tested £49.99 [Visit supplier](https://peptidesupermarket.co.uk/go/019ea82b-69ec-7208-8061-5ddf43080a98?loc=keyword_price_table) 10 [Biolabs](https://peptidesupermarket.co.uk/suppliers/biolabs) £51.53 [Visit supplier](https://peptidesupermarket.co.uk/go/019f5cba-dd29-7258-b643-3d23bd0f1ba5?loc=keyword_price_table) ## Compare L-Carnitine by dosage Compare dosage | # | Supplier | Price | Per mg | Stock | Lab Tested | | | --- | --- | --- | --- | --- | --- | --- | | 1 | 95 Confidence [Alpha Peptides®](https://peptidesupermarket.co.uk/suppliers/alpha-peptides) Cheapest ★ 5.0 | £20.00 | £0.03 | In Stock | — | [View Deal](https://peptidesupermarket.co.uk/go/019da535-b26d-7358-a60d-c9dcd5653969?loc=keyword_price_table) | | 2 | 87 Confidence [PeptideStock](https://peptidesupermarket.co.uk/suppliers/peptidestockcouk) ★ 4.6 | £17.99 | £0.03 | Out of Stock | — | [View Deal](https://peptidesupermarket.co.uk/go/01a16b3d-b349-714a-986e-954b5451e38e?loc=keyword_price_table) | | 3 | 77 Confidence [Lucid Peptides](https://peptidesupermarket.co.uk/suppliers/lucid-peptides) | £17.95 | £0.03 | Out of Stock | — | [View Deal](https://peptidesupermarket.co.uk/go/019f5ed9-e20a-7011-bf78-520906b601ab?loc=keyword_price_table) | | 4 | 63 Confidence [Opti-Gen Peptides](https://peptidesupermarket.co.uk/suppliers/opti-gen-peptides) ★ 4.8 | £6.00 | £0.01 | In Stock | — | [View Deal](https://peptidesupermarket.co.uk/go/01a09135-eca3-72a8-9191-1c67a115eaf1?loc=keyword_price_table) | | 5 | 50 Confidence [Precision Peptide](https://peptidesupermarket.co.uk/suppliers/precision-peptide) ★ 5.0 | £15.00 | £0.03 | In Stock | — | [View Deal](https://peptidesupermarket.co.uk/go/019f52e5-a733-73d3-885d-e9a93e0950da?loc=keyword_price_table) | | 6 | 50 Confidence [Precision Peptide](https://peptidesupermarket.co.uk/suppliers/precision-peptide) ★ 5.0 | £45.00 | £0.08 | In Stock | — | [View Deal](https://peptidesupermarket.co.uk/go/019f52e5-a7b5-727e-8956-0fc618207c95?loc=keyword_price_table) | | 7 | 50 Confidence [Absolute BioLab](https://peptidesupermarket.co.uk/suppliers/absolute-biolab) | £15.00 | £0.03 | In Stock | — | [View Deal](https://peptidesupermarket.co.uk/go/019f9cfe-a79b-71f1-80b9-5ade6c002374?loc=keyword_price_table) | | 8 | 50 Confidence [Genopept](https://peptidesupermarket.co.uk/suppliers/genopept) | £20.00 | £0.03 | In Stock | — | [View Deal](https://peptidesupermarket.co.uk/go/01a0f557-d08a-7306-8fc1-897ac95ec3f2?loc=keyword_price_table) | | 9 | 50 Confidence [Research Peptides](https://peptidesupermarket.co.uk/suppliers/research-peptides) | £49.99 | £0.08 | In Stock | | [View Deal](https://peptidesupermarket.co.uk/go/019ea82b-69ec-7208-8061-5ddf43080a98?loc=keyword_price_table) | | 10 | 50 Confidence [Biolabs](https://peptidesupermarket.co.uk/suppliers/biolabs) | £51.53 | £0.09 | In Stock | — | [View Deal](https://peptidesupermarket.co.uk/go/019f5cba-dd29-7258-b643-3d23bd0f1ba5?loc=keyword_price_table) | ## Price history ### 30-Day L-Carnitine Price Trend Based on the 600mg dosage — cheapest, average & highest listed price. Cheapest Average Highest £54 £34 £15 28 Sep 12 Oct 27 Oct 30-Day Low £15.00 Average £26.30 30-Day High £53.99 ## Choosing a L-Carnitine supplier in the UK There are 9 UK suppliers stocking L-Carnitine in our directory, with 600mg prices from **£6.00** up to **£51.53** (average **£25.85**). [Opti-Gen Peptides](https://peptidesupermarket.co.uk/suppliers/opti-gen-peptides) is the keenest on price today at roughly £0.01/mg, but the cheapest supplier isn't always the right one — delivery, testing and reputation matter just as much. ## What makes a good L-Carnitine supplier We'd shortlist suppliers that offer: - **Third-party lab testing** — an independent certificate of analysis for every batch. - **UK-based dispatch** — faster delivery, no customs delays and easier returns. - **Transparent pricing** — clear per-vial and per-mg costs with no surprises at checkout. - **Verified reviews** — a track record from real customers you can actually check. - **Clear policies** — upfront shipping times, payment options and refund terms. ## How much do UK L-Carnitine suppliers charge? Expect to pay around **£25.85** for the 600mg dosage, dropping to **£6.00** with the best-value supplier and rising to **£51.53** at the top end — a spread of roughly **88%** across the directory. Each listing above links to the supplier's full profile with their delivery, payment and testing details. ## Buying from a L-Carnitine supplier safely Research peptides are supplied for in-vitro laboratory use only. Favour established suppliers with verified reviews and independent testing, and ensure any purchase complies with the law in your jurisdiction. > For in-vitro laboratory research use only. We compare suppliers — we don't sell, supply or ship L-Carnitine or any other peptide. ### More ways to buy L-Carnitine - [L-Carnitine full price comparison](https://peptidesupermarket.co.uk/peptide/l-carnitine) - [Best L-Carnitine Prices](https://peptidesupermarket.co.uk/best-l-carnitine-prices) - [Cheapest L-Carnitine Prices](https://peptidesupermarket.co.uk/cheapest-l-carnitine-prices) - [Where to Buy L-Carnitine](https://peptidesupermarket.co.uk/where-to-buy-l-carnitine) - [Buy L-Carnitine Online UK Cheap](https://peptidesupermarket.co.uk/buy-l-carnitine-online-uk-cheap) - [L-Carnitine Price Comparison](https://peptidesupermarket.co.uk/l-carnitine-price-comparison) - [L-Carnitine For Sale](https://peptidesupermarket.co.uk/l-carnitine-for-sale) ### Compare prices for other peptides - [Retatrutide](https://peptidesupermarket.co.uk/retatrutide-uk-supplier) - [GHK-Cu](https://peptidesupermarket.co.uk/ghk-cu-uk-supplier) - [BPC-157](https://peptidesupermarket.co.uk/bpc-157-uk-supplier) - [NAD+](https://peptidesupermarket.co.uk/nad-uk-supplier) - [Mots-C](https://peptidesupermarket.co.uk/mots-c-uk-supplier) - [Tirzepatide](https://peptidesupermarket.co.uk/tirzepatide-uk-supplier) ## Compare every L-Carnitine deal in one place Live prices from verified UK suppliers, updated continuously. Find the cheapest L-Carnitine in seconds. [View L-Carnitine Comparison](https://peptidesupermarket.co.uk/peptide/l-carnitine) [Browse All Peptides](https://peptidesupermarket.co.uk/compare-peptide-prices-uk) --- *Add `.md` to any page URL on peptidesupermarket.co.uk for its Markdown version. Index of the site: https://peptidesupermarket.co.uk/llms.txt - full text: https://peptidesupermarket.co.uk/llms-full.txt.*