In New Zealand, peptides fall into three groups. Cosmetic peptides in skincare and collagen peptides in food supplements are sold openly. Injectable peptides are different: many are prescription medicines, and Medsafe says selling them without authorisation is unlawful. The word is the same, but the rules are not.
Which kind of peptide are you looking for?
Start here, because each group has its own rules and its own place to buy.
| Type | Examples | How used | NZ access |
|---|---|---|---|
| Skincare | Copper tripeptide-1, acetyl hexapeptide-8 | On skin | Normal retail |
| Food supplement | Collagen peptides | Eaten | Normal retail |
| Approved medicines | Semaglutide, tirzepatide | Prescribed | Doctor and pharmacy |
| Unapproved peptides | BPC-157, TB-500, retatrutide | Injected | Not legal to sell to the public |
What are peptides?
Peptides are short chains of amino acids. Our plain guide to what peptides are covers how they differ from proteins, and why one word covers such different products.
What has changed in New Zealand?
The rules tightened quickly. This timeline is built from Medsafe documents and New Zealand news reports.
| Date | What happened |
|---|---|
| May 2023 | The Medicines Classification Committee recommends BPC-157 as a prescription medicine |
| July 2025 | Medsafe proposes ten prescription group entries for unscheduled peptides |
| December 2025 | Many peptides are reported as classified prescription medicines |
| May 2026 | Medsafe warns consumers about unapproved peptides |
| July 2026 | The NZ Herald reports 370+ parcels stopped in 2025, up from 15 in 2022 |
For the full picture, read are peptides legal in NZ?
What do peptides do for skin?
In skincare, peptides are used to support the look of firmer, smoother skin. Evidence varies by ingredient, as our skincare guide explains. The most searched ingredients are copper peptides and PDRN, which is a DNA ingredient often sold beside peptides.
How can you check a product?
Read the ingredient list, not the marketing. Our free peptide ingredient checker finds peptides in any list you paste and shows where they sit.
Common questions
Where can you buy peptides in NZ?
Skincare peptides are sold by pharmacies, beauty retailers and skincare brands. Collagen peptides are sold as food supplements. Prescription peptide medicines come through a doctor and a pharmacy, and Medsafe warns against buying injectable peptides from online sellers.
Why are peptides so popular in New Zealand right now?
Interest has grown through social media, weight-loss medicines and skincare trends. Medsafe reports rising imports and online sales, and more parcels are being stopped at the border.