Chemyo vs Receptor Chem: Peptide Vendor Comparison 2026
Compare Chemyo and Receptor Chem — mid vs mid pricing, COA-verified/COA-verified testing, 1 shared peptides.
Chemyo
Location: USA
Peptides: 1
COA: ✓ Available
Third-party tested: ✓ Yes
Top peptides:
- • MK-677
Receptor Chem
Location: UK
Peptides: 1
COA: ✓ Available
Third-party tested: ✓ Yes
Top peptides:
- • MK-677
Comparison Overview
Both Chemyo and Receptor Chem compete in the mid market segment. Chemyo offers with COA availability and is third-party tested, while Receptor Chem is with COA availability and third-party tested. Both offer shipping to multiple regions; Chemyo has a reputation score of 4.5/5 vs Receptor Chem's 4.3/5. They share 1 common peptide offerings, including MK-677.
Key Metrics
| Metric | Chemyo | Receptor Chem |
|---|---|---|
| Established | 2016 | 2018 |
| Location | USA | UK |
| Price Tier | mid | mid |
| Reputation Score | 4.5/5 | 4.3/5 |
| COA Available | ✓ Yes | ✓ Yes |
| Third-Party Tested | ✓ Yes | ✓ Yes |
| Shipping Regions | USA, International | UK, Europe, International |
| Payment Methods | credit card, crypto, e-check | credit card, bank transfer, crypto |
| Peptides Offered | 1 | 1 |
Shared Peptides (1)
Both vendors offer these peptides:
Chemyo Highlights
Strengths
- Excellent reputation for SARMs quality — considered top-tier
- Rigorous third-party testing with publicly posted lab reports
- 50ml bottles provide more value than industry standard 30ml
Considerations
- Very limited peptide selection — primarily a SARMs vendor
- MK-677 is their only peptide-adjacent compound
Receptor Chem Highlights
Strengths
- Highly respected UK-based vendor with excellent quality reputation
- Comprehensive testing — Mass Spec, HPLC, FTIR, NMR
- 99%+ purity on all products
Considerations
- Primarily a SARMs vendor — very limited peptide selection
- Only MK-677 as a peptide-adjacent compound
Which Vendor to Choose?
Chemyo has been in business longer, offering more operational history.
⚠️ Important: This comparison is for informational purposes only. Research peptides responsibly and consult appropriate medical professionals. The Peptide Index does not endorse any vendor.
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