--- title: "Cheapest L-Carnitine UK — From £6.00 (October 2026) - PeptideSupermarket®" description: "The cheapest L-Carnitine in the UK right now is £6.00 at Opti-Gen Peptides. Compare 9 suppliers side by side and save up to 88%." url: "https://peptidesupermarket.co.uk/cheapest-l-carnitine-prices" 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) › Cheapest L-Carnitine in the UK # Cheapest L-Carnitine in the UK The cheapest **L-Carnitine** today is **£6.00** at Opti-Gen Peptides. Compare every UK supplier below and save up to **88%** versus the most expensive listing. From £6.00 9 UK suppliers compared 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) | Prices updated continuously across all dosages. We may earn a commission from links. Cheapest Price £6.00 at Opti-Gen Peptides Average Price £25.85 600mg dosage Highest Price £51.53 at Biolabs UK Suppliers 9 compared ### 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 ## Where to buy L-Carnitine cheapest The verified UK suppliers offering the best L-Carnitine value today. [Alpha Peptides®](https://peptidesupermarket.co.uk/suppliers/alpha-peptides) Best Price 95/100 £20.00 600mg - ★ 5.0 (4 reviews) [View profile](https://peptidesupermarket.co.uk/suppliers/alpha-peptides) [View deal](https://peptidesupermarket.co.uk/go/019da535-b26d-7358-a60d-c9dcd5653969?loc=keyword_spotlight) [PeptideStock](https://peptidesupermarket.co.uk/suppliers/peptidestockcouk) Runner-up 87/100 £17.99 600mg - ★ 4.6 (14 reviews) - Trading since 2026 - 1–2 day UK delivery - Lab tested by Peptideverify [View profile](https://peptidesupermarket.co.uk/suppliers/peptidestockcouk) [View deal](https://peptidesupermarket.co.uk/go/01a16b3d-b349-714a-986e-954b5451e38e?loc=keyword_spotlight) [Lucid Peptides](https://peptidesupermarket.co.uk/suppliers/lucid-peptides) Also worth a look 77/100 £17.95 600mg [View profile](https://peptidesupermarket.co.uk/suppliers/lucid-peptides) [View deal](https://peptidesupermarket.co.uk/go/019f5ed9-e20a-7011-bf78-520906b601ab?loc=keyword_spotlight) ## Where to find the cheapest L-Carnitine [Opti-Gen Peptides](https://peptidesupermarket.co.uk/suppliers/opti-gen-peptides) currently has the cheapest L-Carnitine at **£6.00** for the 600mg dosage — that's about £0.01/mg. With 9 UK suppliers in our index and an average price of **£25.85**, the gap between the best and worst deal is roughly **88%**, so it genuinely pays to shop around rather than buy from the first vendor you find. ## How much cheaper is the best deal? The cheapest L-Carnitine listing (£6.00) sits well below the average of £25.85, and the most expensive vendor, Biolabs, charges up to £51.53. Buying from the cheapest verified supplier rather than the dearest could save you the better part of **88%** on every vial — money better spent on more product or proper storage. ## Is the cheapest L-Carnitine always the best buy? Not necessarily. The lowest sticker price doesn't always mean the lowest cost per milligram, and an unverified supplier may skip third-party lab testing to keep prices down. Before you check out, weigh the headline price against: - **Cost per mg** for the 600mg dosage, not just the price of the vial. - **Lab testing** — a certificate of analysis confirming purity and concentration. - **Stock and delivery** — in-stock items with fast, affordable UK shipping. - **Discount codes** — an extra percentage off at checkout can make a mid-priced vendor the cheapest overall. ## Track L-Carnitine prices over time Our 30-day trend chart shows the cheapest, average and highest L-Carnitine prices day by day, so you can spot whether prices are rising or falling before you commit. If the cheapest line is trending down, it can pay to wait; if it's climbing, locking in today's £6.00 may be the smarter move. ## Frequently asked questions **Who sells the cheapest L-Carnitine in the UK?** Right now it's Opti-Gen Peptides at £6.00, though our table updates continuously as suppliers change their pricing. **Why are some L-Carnitine prices so much higher?** Larger dosages, branded packaging, faster shipping and independent lab testing all push prices up. Always compare the per-mg cost to see past the headline figure. > For in-vitro laboratory research use only. We compare suppliers — we don't sell 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) - [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 UK Supplier](https://peptidesupermarket.co.uk/l-carnitine-uk-supplier) - [L-Carnitine For Sale](https://peptidesupermarket.co.uk/l-carnitine-for-sale) ### Compare prices for other peptides - [Retatrutide](https://peptidesupermarket.co.uk/cheapest-retatrutide-prices) - [GHK-Cu](https://peptidesupermarket.co.uk/cheapest-ghk-cu-prices) - [BPC-157](https://peptidesupermarket.co.uk/cheapest-bpc-157-prices) - [NAD+](https://peptidesupermarket.co.uk/cheapest-nad-prices) - [Mots-C](https://peptidesupermarket.co.uk/cheapest-mots-c-prices) - [Tirzepatide](https://peptidesupermarket.co.uk/cheapest-tirzepatide-prices) ## Compare every L-Carnitine deal in one place Live prices from verified UK suppliers, updated continuously. 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