Phoenix Peptide
Premium research peptides with published COAs
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About Phoenix Peptide
US-based research peptide vendor offering lyophilized peptides for in-vitro research. Known for broad GLP-1 catalog with per-lot COAs published on product pages.
Score Breakdown
Pros & Cons
Pros
- Broad GLP-1 catalog including semaglutide, tirzepatide and retatrutide
- Per-lot COAs published directly on product pages
- Purity consistently above 99%
- Professional packaging with cold packs
- Fast shipping (3-5 days typical)
Cons
- Pricier than budget competitors
- Catalog limited to ~70 peptides
- Newer company with limited public track record
- No loyalty or bulk discount program
Avis
First time ordering from Phoenix Peptide. Got tirzepatide 5mg. Reconstituted and tested it myself — came back at 98.9% purity via my own HPLC. COA they provided matched my results within margin. Packaging was professional with cold packs. Impressed with the whole experience honestly. Their GLP-1 selection is better than most vendors I've tried.
Ordered semaglutide and retatrutide from Phoenix. Both arrived within 4 days. COAs were posted directly on the product page with matching lot numbers — I actually verified one with the testing lab and it checked out. Purity was 99.2% on the semaglutide. Only complaint is they're a bit pricier than some competitors but the transparency is worth it. Will order again.
Quality of the peptides is excellent — BPC-157 and TB-500 both worked as expected. COAs are published per lot which is a big plus. However, my order took 8 days to arrive (East Coast). Customer service was responsive when I asked about the delay and said they were relocating their warehouse. Products themselves are top notch.