# Core Peptides

*Source: https://total.reviews/vendors/core-peptides*

## Summary

- Rating: ★★★★☆ 3.9/5 from 43 reviews
- Website: https://corepeptides.com
- Verified lab tests / COAs: 0
- Products listed: 18

Domestic US peptide supplier focusing on purity and fast shipping.

## Rating breakdown

- 5 star: 17
- 4 star: 11
- 3 star: 11
- 2 star: 3
- 1 star: 1

## Lab tests & certificates of analysis

_No verified lab tests on file._

## Products

| Product | Category | Price (USD) |
| --- | --- | --- |
| AOD\-9604 | Fat Loss | — |
| BPC\-157 | Healing | — |
| Bacteriostatic Water | Supplies | — |
| CJC\-1295 | Growth Hormone | — |
| CJC\-1295 \+ Ipamorelin | Growth Hormone | — |
| Epithalon | Anti\-Aging | — |
| GHK\-Cu | Skin/Hair | — |
| Ipamorelin | Growth Hormone | — |
| KPV | Anti\-Inflammatory | — |
| MK\-677 | Growth Hormone | — |
| Melanotan II | Tanning | — |
| NAD\+ | Anti\-Aging | — |
| PT\-141 | Sexual Health | — |
| Semaglutide | GLP\-1 | — |
| TB\-500 | Healing | — |
| Tesamorelin | Growth Hormone | — |
| Thymosin Alpha\-1 | Immune | — |
| Tirzepatide | GLP\-1 | — |

## Recent reviews (20 most recent of 43)

### ★★★☆☆ good vendor but where are the COAs

*Wesley L. — May 24, 2026*

No real complaints about the product or the shipping speed, both were fine. But I had to email them to get a certificate of analysis and even then it wasn't tied to my batch number. For the price I'd expect that on the product page already.

### ★★★★★ fast and accurate

*Josephine O. — May 19, 2026*

Ordered BPC-157 and TB-500 on a Tuesday, had it by Thursday. Order was exactly right and the vials looked clean.

### ★★★☆☆ good vendor

*Brittany B. — May 14, 2026*

CJC-1295 order showed up fine and the vials looked right. Pricing has been creeping up though.

### ★★★☆☆ plain packaging, slow restock

*Andrew G. — May 9, 2026*

Product is fine and arrived ok. Just a bland unmarked box and the GHK-Cu I wanted was backordered two weeks.

### ★★★★☆ will use again

*wesley\_fit — Apr 30, 2026*

Solid all around. Ordered TB-500, came in three days, packaging was secure. Customer service answered my question quick.

### ★★★★★ fast and clean

*Miles D. — Apr 18, 2026*

Two day delivery, semaglutide reconstituted perfectly clear. Exactly what I wanted.

### ★★★☆☆ underfilled vial

*Kenneth X. — Apr 5, 2026*

One of two ipamorelin vials looked light compared to the other. Emailed them and they were polite about it but I'm knocking a star.

### ★★★☆☆ decent, COA gripe

*Matthew N. — Mar 22, 2026*

BPC-157 came quick enough. Wish more products had the COA posted upfront instead of having to ask every time.

### ★★★★☆ consistent quality

*Janet S. — Mar 9, 2026*

Tirzepatide order, my second from them. Same fill, same fast shipping. Glad I found a steady source.

### ★★★☆☆ slow email reply

*Mason M. — Feb 24, 2026*

Product was good but it took three days to get an answer to a simple shipping question. Otherwise fine.

### ★☆☆☆☆ Wouldn't reconstitute, wouldn't refund

*Ally — Feb 17, 2026*

I've been researching peptides for years. CJC-1295/ipamorelin and wolverine blends to be specific. I switched to core peptides hoping to save a little bit of money. horrible mistake. The CJC/Ipa blend was clumpy and wouldn't dissolve. It wasn't my bac water because I tried again with a vial from my previous brand, worked great. Worst part is that once I FINALLY got a response from customer service they were useless. No refund, blamed me, wouldn't take ownership. Their lab tests look a bit suspect too. I won't be ordering again.

### ★★☆☆☆ Where are the real certificates?

*SJG — Feb 17, 2026*

Start with the good, lots of options\! —but they around of stock of what I want.  Then I click on their COAs and it’s just an auto generated image, if they do have real 3rd party testing? please correct me if so…

### ★★★★☆ good experience

*Holly B. — Feb 11, 2026*

Ordered retatrutide, shipped same day since I beat the cutoff. Showed up fast and well packed.

### ★★★★★ impressed

*Sandra D. — Jan 29, 2026*

First time ordering, BPC-157/TB-500 blend. Arrived in 3 days, vials looked perfect, COA emailed when I asked.

### ★★★★☆ reliable so far

*Hannah Z. — Jan 17, 2026*

Four orders in, never a problem. MK-677 and ipamorelin both consistent. Site says UPS but it always ships USPS, minor thing.

### ★★★★★ semaglutide is the real deal here

*Danielle K. — Jan 15, 2026*

third vendor ive tried for sema and core peptides is the only one where i actually felt confident in what i was getting. Purity report was right there on the product page which none of the other places had. Shipping was like 2 days to florida. Only thing id say is the website could be a litle easier to navigate but thats a minor complaint lol. Product itself is 10/10

### ★★★☆☆ fine but pricey

*Michelle X. — Jan 4, 2026*

Decent product and it came fast, but their semaglutide crept up in price since my last order. Shopping around now.

### ★★★★★ TB\-500 and combo blend both excellent

*Ryan O'Brien — Dec 30, 2025*

Been running studies with Core Peptides' TB-500 and their CJC-1295 + Ipamorelin blend for the past six weeks. Both products have exceeded expectations in terms of purity and consistency. The TB-500 showed 99.2% on the COA which is outstanding, and the combo blend was right at 98.7%. Packaging is professional with proper temperature control during shipping. They include reconstitution instructions which is helpful for new researchers. Customer service answered my questions about storage requirements promptly. The pricing is fair given the quality standards they maintain. No complaints whatsoever - this is how a peptide research supplier should operate.

### ★★★★★ GHK\-Cu has been amazing for my research

*Priya Nair — Dec 26, 2025*

I was skeptical about GHK-Cu tbh but decided to give it a shot from Core after reading some studies. The product arrived in 3 days, well packaged with desiccant packets and proper labeling. Ive been really impressed with the results so far. Already placed a second order and added some NAD+ to try as well. These guys are becoming my go-to for sure

### ★★★★☆ reordering

*Amy L. — Dec 18, 2025*

Quick shipping, GHK-Cu tested clean, packaging tight. Reordering.

All reviews: https://total.reviews/vendors/core-peptides