# Peptide Sciences vs Core Peptides

> Compare Peptide Sciences and Core Peptides side by side: ratings, reviews, and lab tests.

*Source: https://amino.reviews/compare/peptide-sciences/core-peptides*

## [Peptide Sciences](https://amino.reviews/vendors/peptide-sciences)

- Rating: ★★★★☆ 3.6/5 from 59 reviews

### Rating breakdown

- 5 star: 18
- 4 star: 15
- 3 star: 13
- 2 star: 9
- 1 star: 4

### Verified lab tests

_No verified lab tests._

### Recent reviews

**★★★★★ any word on them coming back** — Jul 21

Used Peptide Sciences as my default for a long stretch. Packaging was always clean, ice packs still cold on arrival, COA in every order. Sad to see them shut down and just checking if anyone has heard whether they'll reopen.

**★★☆☆☆ expensive and then just closed** — Jul 2

Honestly the writing was on the wall. Prices crept up, customer service got slower and slower to answer emails, and then one day no more site. Decent vials when they arrived but I wouldn't call the whole experience worth the premium they charged.

**★★★★☆ solid run while it lasted, anyone know a replacement?** — Jun 14

They were never the cheapest and the COA was always their own in-house testing rather than a third party, which bugged me a little. But shipping was quick, the website was easy, and stock was reliable for a long time. Now that they're gone I'm a bit lost on where to reorder, hoping someone here points me somewhere with the same consistency.

## [Core Peptides](https://amino.reviews/vendors/core-peptides)

- Rating: ★★★★☆ 3.9/5 from 63 reviews

### Rating breakdown

- 5 star: 23
- 4 star: 18
- 3 star: 17
- 2 star: 4
- 1 star: 1

### Verified lab tests

_No verified lab tests._

### Recent reviews

**★★★★★ took two days and everything was perfect** — Oct 23

Ordered Friday afternoon, in my hands Monday morning, vials clean and well sealed.

**★★★★☆ happy customer** — Oct 15

Big catalog, quick shipping, correct order. The semaglutide vials were well packed. Would buy again.

**★★★☆☆ shipping fast, paperwork slow** — Oct 6

Order arrived in two days which I can't fault. Getting the certificate of analysis took three emails though.