What are peptides?
Peptides are short chains of amino acids — smaller than a full protein, but structured enough to act as signalling molecules in the body. That signalling role is why they’re such a broad research category: different peptides are studied for effects on tissue repair, growth hormone release, pigmentation, appetite regulation, and more, depending on which receptors they interact with.
Peptides sold here are not approved medicines and are supplied for research purposes only, not for human consumption.
Are peptides legal to buy in the UK?
Most research peptides aren’t classified as controlled substances in the UK, but they’re also not licensed medicines — which is why reputable suppliers, including this one, sell them strictly for research use rather than as supplements or treatments.
Peptide categories compared
Peptides are grouped by the receptor system they interact with, not by potency. This table is a starting point for your own research, not a recommendation.
| Peptide | Category | Commonly researched for | Product page |
|---|---|---|---|
| BPC-157 | Repair & recovery | Tissue repair research | View → |
| TB-500 | Repair & recovery | Recovery research | View → |
| CJC-1295 / Ipamorelin | GH secretagogue | Growth hormone release research | View → |
| Sermorelin | GH secretagogue | Growth hormone release research | View → |
| Tesamorelin | GH secretagogue | Fat metabolism research | View → |
| GHRP-2 / GHRP-6 | GH secretagogue | Growth hormone release research | View → |
| HGH Fragment (AOD-9604) | GH secretagogue | Fat metabolism research | View → |
| Melanotan 1 / 2 | Melanocortin | Pigmentation research | View → |
| PT-141 | Melanocortin | Libido-related research | View → |
| GHK-Cu / Pal-GHK | Copper peptide | Skin & collagen research | View → |
| NAD+ | Coenzyme | Cellular energy research | View → |
| Retatrutide / Mazdutide | Metabolic (GLP-1 family) | Weight management research | View → |
| Oxytocin | Neuropeptide | Behavioural research | View → |
Reflects current catalogue categorisation — update as you add or discontinue products.
What to look for in a UK peptides supplier
- Batch-specific testing. A Certificate of Analysis tied to the actual batch you’re buying.
- Correct storage guidance for the product, not the person. Peptides are temperature-sensitive — a supplier should tell you how they ship and store it, not how you should dose it.
- Clear labelling. Peptide name, concentration, and research-only status stated plainly.
- No dosing or administration instructions. A legitimate research supplier sells the compound, not a usage protocol — that’s a line worth checking for.
- A real returns/guarantee policy with terms you can actually read.
Which category fits which research goal
Broad groupings researchers commonly use — not medical guidance:
Repair & recovery research
Growth hormone research
Weight management research
See the dedicated Retatrutide UK page for full detail — dosing and administration guidance isn’t provided there either, for the same reason it isn’t here.
Skin & pigmentation research
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Every peptide on uksarms.shop ships with batch documentation.
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What’s the difference between peptides and SARMs?
Peptides are short amino acid chains that act as signalling molecules — most act on hormone or growth-related receptors. SARMs are smaller, non-peptide molecules that bind directly to androgen receptors. They’re chemically distinct research categories, even though some are researched for overlapping goals like recovery or body composition. See our UK SARMs guide for the SARMs side of this.
Are peptides legal to buy in the UK?
Most research peptides aren’t controlled substances in the UK, but they’re not licensed medicines either — they’re sold for research purposes only.
Do you provide dosing or reconstitution instructions?
No. We sell peptides for research use and don’t provide guidance on dosing, reconstitution, or administration for personal use. A qualified professional in a research or clinical setting is the right source for that.
How is purity verified?
Batch-specific testing with a published Certificate of Analysis — check the product page for the peptide you’re interested in.
Can peptides be delivered to the EU?
We ship across the UK and EU. It’s your responsibility to check your own country’s import rules before ordering.