Peptide Sciences UK
About
Peptide Sciences UK is the UK distribution partner for the well-established US-based Peptide Sciences brand. They offer an extensive catalogue of over 100 peptides, including rare and novel compounds. All products undergo rigorous US-based testing with mass spectrometry and HPLC purity verification. They are the featured supplier partner of PeptideGuide due to their consistently high quality standards and transparent testing practices.
Shipping
Ships to UK: Yes
Free UK shipping on all orders. Standard Royal Mail 2–3 days. Express shipping available. Temperature-controlled packaging for sensitive peptides. International shipping available to select countries.
Payment Methods
Peptides & Pricing
| Peptide | Price (GBP) | Vial Size | In Stock |
|---|---|---|---|
| bpc 157 | £0.00 | 0mg | In Stock |
| tb 500 | £0.00 | 0mg | In Stock |
| semaglutide | £0.00 | 0mg | In Stock |
| ghk cu | £0.00 | 0mg | In Stock |
| retatrutide | £0.00 | 0mg | In Stock |
| tirzepatide | £0.00 | 0mg | In Stock |
| cjc 1295 | £0.00 | 0mg | In Stock |
| ipamorelin | £0.00 | 0mg | In Stock |
| ghrp 6 | £0.00 | 0mg | In Stock |
| selank | £0.00 | 0mg | In Stock |
| semax | £0.00 | 0mg | In Stock |
Reviews (4)
TB-500 quality you can feel — stacked with BPC-157 brilliantly
PeptideGuide Admin
Running the BPC-157 + TB-500 stack for a stubborn Achilles issue that had been plaguing me for 8 months. Six weeks in and I'm back running at full pace. Both peptides from Peptide Sciences UK. The TB-500 vials are well-presented, well-sealed, and the powder characteristics look right. I'm confident this is properly manufactured. Highly recommend the stack protocol on this site.
Pros
Premium quality. Confidence in dosing. Great stack with BPC-157. Excellent packaging.
Cons
Slightly on the expensive side for TB-500 specifically versus some competitors.
Only supplier stocking retatrutide with actual test data
PeptideGuide Admin
As far as I can tell, Peptide Sciences UK is one of the only UK suppliers willing to provide mass spec data for retatrutide specifically. Given how new this compound is and how much fake product is circulating, I wouldn't touch it anywhere else. Expensive but for this compound, that's expected. Delivery took 4 days — slightly slower than usual but acceptable.
Pros
Mass spec tested. Rare compound in stock. Transparent about testing limitations.
Cons
Very expensive. Slightly slower delivery this order. Dosing still experimental.
The gold standard — I won't go anywhere else
PeptideGuide Admin
Peptide Sciences has earned its featured status on this site. Every single order over the past 18 months has been flawless. Their BPC-157 is consistently 99%+ purity per the COAs and the results in my training recovery speak for themselves. Customer service responded to a reconstitution question on a Sunday. Outstanding.
Pros
Consistent 99%+ purity. Excellent customer service including weekends. Full transparent testing. Huge range.
Cons
Honestly can't find one. Maybe add a loyalty programme.
Semaglutide that actually works — down 14 kg in 16 weeks
PeptideGuide Admin
I had tried cheaper options before and suspected underdosing — zero results. Switched to Peptide Sciences UK and the difference was immediate. Classic GLP-1 side effects on initiation (nausea for first 2 weeks) confirmed the product is real. Down 14 kg in 16 weeks at 1 mg/week, with decent diet and three gym sessions a week. The mass spec COA gives me confidence in what I'm using.
Pros
Mass spectrometry verified product. Real GLP-1 effects confirmed. Fast delivery. Professional packaging.
Cons
Premium price point — but justified given quality verification.
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