Peptide Sciences Reviews
Lab Verified COA'sPeptide Sciences is an established U.S. supplier of highly purified research peptides. Rated 4.0/5 from 4 community reviews. Compare Peptide Sciences prices, read verified reviews, and check third-party lab testing at Peptide Critic.
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Rating Breakdown
Site is no longer active
Love shopping for my peps here
I have bought many items from this company.
Great Product, Great Customer Service
Vendor Details & Contact
Contact Information
Website
Address
Business Information
Verification Status
Lab Verified COA's Vendor
Price Range
$$$
Quality Assurance
Product Statistics
47
Products Available
$10.43
Average Price/unit
$0.14 - $110.00
Price Range/unit
Peptide Sciences Reviews — Frequently Asked Questions
Is Peptide Sciences legit?
Based on the data we track, Peptide Sciences is listed with Lab Verified COAs on Peptide Critic and holds a 4/5 community rating from 4 reviews. Review the verified community feedback below and always confirm a current COA for your specific batch.
Does Peptide Sciences provide third-party COAs / lab testing?
Peptide Sciences provides third-party Certificates of Analysis (COAs) for its research peptides, and we surface lab-verification status on this page. Confirm the COA matches your specific batch number.
Does Peptide Sciences have a coupon or discount code?
We do not currently track an active coupon code for Peptide Sciences. Check the coupon box on this page and our /coupon-codes index for the latest verified deals.
Where is Peptide Sciences located?
Peptide Sciences is based in the United States. Always verify current shipping origin at checkout.
What the community says about Peptide Sciences
Recent discussion from the Peptide Critic community forum.
5.00/5 | Reviewed November 26, 2025 Peptide: IGF-1 LR3 They’re fast and the website is like an encyclopedia for every single item they offer. It’s like a library where you can buy the books as you do research 🧐 while you shop. Very professional website.
5.00/5 | Reviewed November 17, 2025 Peptide: BPC-157 I used to love this company but they are very pricey - Ships within days which is super awesome too! View original review on PeptideCritic Reply below to discuss this review or ask the reviewer questions.
5.00/5 | Reviewed November 14, 2025 Peptide: GLP3-R I've used PS for years. I have always received quality and effective Peptides (and molecules.) Price may be a little higher, but for the research, quality and USA produced product, it's worth it to me.
Peptide Sciences YouTube videos are still up. Will they pull them too?
This is the official discussion thread for a vendor on PeptideCritic.com. View the vendor profile: Peptide Sciences Share your experiences with this vendor, ask questions, or add information that might help other community members. Please keep discussions respectful and factual.
@MyB I heard Peptide Sciences reopened as New England Biologics. The site looks very similar aside from the name and colors. Anyway, all of the same library info is on the new site as well - https://neb.co/all-peptides/
Thats not the same company. These guys just scraped the peptide sciences site.
100% this. When I got started, I also went through a clinic and paid $400 for 10mg Sermorelin and $400 for 5/5 Wolverine blend. I got a 20% discount. I was completely new to peptides and didn’t know much about them. I hadn’t discovered Peptide Critic and a lot of other sources yet.