--- title: "LL-37 Peptide UK - Compare Prices from 30 Suppliers - PeptideSupermarket®" description: "Compare LL-37 prices from 30 UK suppliers, from £19.99. Find the cheapest deals, read reviews and save money." url: "https://peptidesupermarket.co.uk/peptide/ll-37" site: "PeptideSupermarket®" country: "United Kingdom" --- [Home](https://peptidesupermarket.co.uk) › [Peptides](https://peptidesupermarket.co.uk/compare-peptide-prices-uk) › LL-37 Search # LL-37 Price Comparison Live prices from 30 UK suppliers, from £19.99, compared side by side so you never overpay. [Immune signalling](https://peptidesupermarket.co.uk/compare-peptide-prices-uk) Prices checked 10 hours ago We compare prices & may earn a commission. Includes a featured placement — not an endorsement. [Full disclosure](https://peptidesupermarket.co.uk/disclosure). Best Price £19.99 Average £46.91 Highest £190.40 You Could Save 90% 29 results 5mg Featured Supplier [Kensington Labs](https://peptidesupermarket.co.uk/suppliers/kensington-labs) LL-37 In Stock 5mg Lab Tested 50 Confidence £29.95 FREE delivery View Deal Compare 29 prices for LL-37. Cheapest: £19.99. Average: £46.91. | Compare | Supplier | Price | Price / mg | Stock | Delivery | Quality | Coupon | Visit | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | 95 Confidence [SPT Peptide](https://peptidesupermarket.co.uk/suppliers/spt-peptide) ★★★★★ 5.0 (23) LL-37 | £45.00 | £9.00/mg | In Stock | Free over £100 | Lab Tested | — | Visit | | | 95 Confidence [Owsa Labs](https://peptidesupermarket.co.uk/suppliers/owsa-labs) ★★★★★ 5.0 (15) LL-37 5mg | £39.99 | £8.00/mg | In Stock | Free | Lab Tested | — | Visit | | | 95 Confidence [Owsa Labs](https://peptidesupermarket.co.uk/suppliers/owsa-labs) ★★★★★ 5.0 (15) LL-37 | £39.99 | £8.00/mg | In Stock | Free | Lab Tested | — | Visit | | | 95 Confidence [BioPlex Peptides](https://peptidesupermarket.co.uk/suppliers/bioplex-peptides) ★★★★★ 5.0 (1) LL-37 | £37.99 | £7.60/mg | In Stock | Free | Lab Tested | — | Visit | | | 95 Confidence [Midshire Labs](https://peptidesupermarket.co.uk/suppliers/midshire-labs) LL-37 | £25.00 | £5.00/mg | In Stock | Free over £50 | Lab Tested | — | Visit | | | 90 Confidence [Cobalt Peptides](https://peptidesupermarket.co.uk/suppliers/cobalt-peptides) ★★★★★ 5.0 (19) LL-37 | £21.95 | £4.39/mg | Out of Stock | Free over £75 | Lab Tested | — | Visit | | | 87 Confidence [PeptideStock](https://peptidesupermarket.co.uk/suppliers/peptidestockcouk) ★★★★★ 4.6 (14) LL-37 | £27.99 | £5.60/mg | Out of Stock | Free over £75 | Lab Tested | — | Visit | | | 80 Confidence [Raccoon Peptides](https://peptidesupermarket.co.uk/suppliers/raccoon-peptides) ★★★★★ 5.0 (1) LL-37 | £29.50 | £5.90/mg | In Stock | Free | Lab Tested | — | Unavailable | | | 80 Confidence [Raccoon Peptides](https://peptidesupermarket.co.uk/suppliers/raccoon-peptides) ★★★★★ 5.0 (1) LL-37 Pen | £69.95 | £13.99/mg | In Stock | Free | Lab Tested | — | Unavailable | | | 70 Confidence [RC Peptides](https://peptidesupermarket.co.uk/suppliers/rc-peptides) ★★★★★ 4.8 (176) LL-37 | £40.00 | £8.00/mg | In Stock | Free | Lab Tested | — | Visit | | | 68 Confidence [Woodlands Biohack](https://peptidesupermarket.co.uk/suppliers/woodlands-biohack) LL-37 5mg | £190.40 | £38.08/mg | In Stock | Free over £100 | Lab Tested | — | Visit | | | 64 Confidence [Union Biolabs](https://peptidesupermarket.co.uk/suppliers/union-biolabs) LL-37 5mg | £45.00 | £9.00/mg | In Stock | Free | Lab Tested | — | Visit | | | 50 Confidence [Precision Peptide](https://peptidesupermarket.co.uk/suppliers/precision-peptide) ★★★★★ 5.0 (1) LL-37 5mg | £30.00 | £6.00/mg | In Stock | Free | — | — | Visit | | | 50 Confidence [Nexum Peptides](https://peptidesupermarket.co.uk/suppliers/nexum-peptides) Best LL-37 5mg | £19.99 | £4.00/mg | In Stock | Free | Lab Tested | — | Visit | | | 50 Confidence [Dr P Research](https://peptidesupermarket.co.uk/suppliers/dr-p-research) LL-37 5mg | £19.99 | £4.00/mg | Out of Stock | Free | Lab Tested | — | Unavailable | | | 50 Confidence [Pure Peptides UK](https://peptidesupermarket.co.uk/suppliers/pure-peptides-uk) LL-37 | £30.00 | £6.00/mg | In Stock | Free | Lab Tested | — | Visit | | | 50 Confidence [Peptide Lab UK](https://peptidesupermarket.co.uk/suppliers/peptide-lab-uk) LL-37 5mg | £34.99 | £7.00/mg | In Stock | Free | Lab Tested | — | Unavailable | | | 50 Confidence [Performance Peptides UK](https://peptidesupermarket.co.uk/suppliers/performance-peptides-uk) LL-37 5mg | £35.00 | £7.00/mg | Out of Stock | £9.99 | — | — | Visit | | | 50 Confidence [Direct Peptides](https://peptidesupermarket.co.uk/suppliers/direct-peptides) LL-37 5mg | £38.84 | £7.77/mg | In Stock | Free | Lab Tested | — | Visit | | | 50 Confidence [Genopept](https://peptidesupermarket.co.uk/suppliers/genopept) LL-37 5mg | £39.00 | £7.80/mg | Low Stock | Free over £200 | Lab Tested | — | Visit | | | 50 Confidence [Biolabshopuk](https://peptidesupermarket.co.uk/suppliers/biolabshopuk) LL-37 5mg | £39.99 | £8.00/mg | In Stock | Free | — | — | Unavailable | | | 50 Confidence [Biolabshopofficial](https://peptidesupermarket.co.uk/suppliers/biolabshopofficial) LL-37 5mg | £39.99 | £8.00/mg | In Stock | Free | — | — | Unavailable | | | 50 Confidence [Platinum Peptides](https://peptidesupermarket.co.uk/suppliers/platinum-peptides) LL-37 5mg | £40.00 | £8.00/mg | In Stock | Free | — | — | Visit | | | 50 Confidence [Bionik Peptides](https://peptidesupermarket.co.uk/suppliers/bionik-peptides) LL-37 5mg | £45.00 | £9.00/mg | In Stock | Free | — | — | Visit | | | 50 Confidence [Orbitrex Peptides](https://peptidesupermarket.co.uk/suppliers/orbitrex-peptides) LL-37 5mg | £49.99 | £10.00/mg | In Stock | Free | Lab Tested | — | Visit | Showing 25 of 28 listings Show more suppliers Loading More ways to compare LL-37 Different views of the same live UK pricing, tuned for how you like to shop. [Best LL-37 Prices Best prices ranked](https://peptidesupermarket.co.uk/best-ll-37-prices) [Cheapest LL-37 Prices Cheapest suppliers compared](https://peptidesupermarket.co.uk/cheapest-ll-37-prices) [Where to Buy LL-37 Full buyer's guide](https://peptidesupermarket.co.uk/where-to-buy-ll-37) [Buy LL-37 Online UK Cheap Today's hottest deals](https://peptidesupermarket.co.uk/buy-ll-37-online-uk-cheap) [LL-37 Price Comparison Live price dashboard](https://peptidesupermarket.co.uk/ll-37-price-comparison) [LL-37 UK Supplier Verified UK supplier directory](https://peptidesupermarket.co.uk/ll-37-uk-supplier) [LL-37 For Sale Browse listings for sale](https://peptidesupermarket.co.uk/ll-37-for-sale) Compare another peptide Search PeptideSupermarket® compares prices but doesn't sell products. More All purchases are made directly from third-party suppliers; your relationship is solely with them. We accept no liability for the quality, purity, or legality of any products listed. We may earn a commission when you click through to a supplier and make a purchase. This does not affect pricing information displayed. By using this site you accept responsibility for ensuring purchases comply with applicable laws in your jurisdiction. [Read our full disclosure](https://peptidesupermarket.co.uk/disclosure). ## LL-37 Profile Well Studied Human Cathelicidin | Antimicrobial Peptide ### Overview LL-37 is the only human cathelicidin antimicrobial peptide, a 37-amino acid cationic peptide derived from hCAP18 that exhibits broad-spectrum antimicrobial activity against bacteria, viruses, and fungi while modulating immune responses. ### Mechanism of Action Provides direct antimicrobial activity through membrane disruption, promotes wound healing by enhancing keratinocyte migration and angiogenesis, and modulates immune responses without systemic exposure when used topically. ### Key Benefits - Direct wound healing acceleration - Broad-spectrum antimicrobial activity - Activity against resistant bacteria (MRSA, MDRPA) - Enhanced tissue regeneration - Immune modulation - Local antimicrobial protection ### Quick Stats Typical Dose 0.5-1.6 mg/mL topical gel or 100-150 mcg injectable Frequency Topical: Daily to twice weekly on wounds. Injectable: Once daily subcutaneous Cycle Duration 2-8 weeks depending on wound healing progress Storage Lyophilized: 2-8°C. Reconstituted: 2-8°C, maintain sterility ## Molecular Information Length 37 amino acids Type Cationic antimicrobial peptide Half-Life Short (rapid proteolytic degradation) ### Modifications Derived from hCAP18 protein ## Research Indications The following information is derived from published scientific literature and is provided for educational and research reference purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations. These peptides are not approved for human use and are sold exclusively for in-vitro laboratory research. Wound Healing Immunity Skin Health ## Dosing Protocols ### topical Topical application is the most established route, providing direct access to wound sites with minimal systemic exposure. | Goal | Dose | Frequency | Route | | --- | --- | --- | --- | | Wound healing - Standard | 0.5mg/mL gel/cream | Daily to twice weekly | Direct wound application | | Wound healing - Intensive | 1.6mg/mL gel/cream | Daily | Direct wound application | #### Key Tips - Direct access to wound site - Minimal systemic exposure - Most established clinical data Reconstitution Instructions ### injectable Subcutaneous injection provides systemic distribution for immune modulation. Limited clinical data compared to topical. | Goal | Dose | Frequency | Route | | --- | --- | --- | --- | | Systemic immune support | 100-150mcg | Once daily | SubQ | #### Key Tips - Systemic distribution - Abdomen, thigh, upper arm injection sites Reconstitution Instructions ## Peptide Interactions #### BPC-157 Synergistic Enhanced wound healing through complementary mechanisms. #### TB-500 Synergistic Combined anti-inflammatory and healing effects. #### Conventional Antibiotics Synergistic FICI values 0.25-0.5 against resistant bacteria when combined. #### Vitamin D3 Synergistic Acts as cofactor for endogenous LL-37 production. #### Lactoferrin Compatible Safe combined use with no negative interactions. #### Physiological Salt Solutions Monitor High salt concentrations may reduce antimicrobial activity. #### Amino Acid Solutions Avoid Physical incompatibility, especially with IV formulations. ## What to Expect Week 1-2 Reduced bacterial load, initial wound bed preparation Week 2-4 Increased granulation tissue formation, epithelial migration Week 4-6 Significant wound size reduction Week 6-8 Continued healing toward wound closure ## Side Effects & Safety #### Common Side Effects - Generally well-tolerated - Mild injection site reactions (injectable) - Local irritation at application site (topical) #### Monitoring - Injection site reactions and excessive irritation - Signs of wound infection - Allergic reactions or contact dermatitis - Wound healing progress #### Stop Signs - Severe injection site reactions with spreading inflammation - Allergic reaction signs (rash, difficulty breathing, swelling) - Persistent flu-like symptoms - Signs of wound infection (increased redness, warmth, drainage) - Worsening wound condition or delayed healing - Unusual pain or irritation at application site #### Contraindications - Pre-existing hypersensitivity to peptides - Compromised immune status (relative contraindication) - Non-sterile wound environments ## Quality Checklist #### Good Signs - Sterile, clear formulation - ≥98% purity by HPLC - White to off-white lyophilized powder - Proper cold chain maintenance (2-8°C) - Appropriate gel base compatible with peptide activity - Clinical-grade concentrations (0.5-1.6mg/mL) #### Warning Signs - Brief room temperature exposure acceptable if promptly refrigerated - Homemade topical formulations may lack sterility #### Bad Signs - Discolored or cloudy solutions - Yellow discoloration or visible particles - Pre-mixed liquid formulations (LL-37 unstable long-term) - Non-sterile preparations - Microbial contamination ## Research & References ### Latest Research 2025 #### LL-37: Master Antimicrobial Peptide Review International Journal of Antimicrobial Agents Comprehensive review of broad functions from infection to cancer immunity. ### Key References 1. 2014 #### Venous Leg Ulcer Trial - Grönberg et al. Wound Repair and Regeneration 68% ulcer area reduction demonstrated at optimal doses in chronic venous leg ulcers. 2. 2015 #### Melanoma Phase I Trial Intratumoral LL-37 in melanoma patients demonstrated safety and immune stimulation (NCT02225366). 3. 2019 #### MRSA Biofilm Study - Noore et al. PLOS ONE >4 log reduction in MRSA biofilms compared to conventional antibiotics. 4. 2008 #### Structural Analysis - Wang et al. Journal of Biological Chemistry NMR spectroscopy determining 3D structure of LL-37. [Search PubMed for LL-37](https://pubmed.ncbi.nlm.nih.gov/?term=%28%22LL-37%22%20OR%20%22LL-37%20%28Human%20Cathelicidin%20Antimicrobial%20Peptide%29%22%20OR%20%22Human%20Cathelicidin%22%20OR%20%22hCAP18-derived%20peptide%22%29) --- *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.*