Quartz Peptides
UK-based supplier with strong third-party lab transparency but weak COA detail and poor affiliate disclosure.
Transparency Score
- Transparency3.7 / 5
- COA Quality3.5 / 5
- Lab Testing4.1 / 5
- Shipping Clarity3.4 / 5
- Support Clarity3.7 / 5
- Affiliate Disclosure3.1 / 5
Strengths
- Third-party testing clearly disclosed with lab facility name and credentials published
- Testing methodology partially documented; HPLC and mass spec detailed
- Email and phone support available; responsive to technical questions about labs
- Clear manufacturing location disclosure for UK-based operations
Concerns
- COA documents lack batch manufacturing dates and specific lot tracking information
- Affiliate program not publicly disclosed; rates and terms unknown
- Shipping practices vaguely documented; no temperature control information published
- Water content and endotoxin testing not consistently included in all COAs
Editorial review
Quartz Peptides excels at disclosing their testing partnership. They work with TechAnalysis Labs, a UK-accredited facility, and publish the lab name, location, and accreditation status on their website. Furthermore, they provide partial methodology transparency—their COAs mention HPLC with detector wavelength and mass spectrometry conditions. This is more detail than most competitors provide and demonstrates genuine openness about testing rigor.
The weakness lies in COA completeness. While certificates include purity and identity data, batch lot numbers are often omitted or abbreviated, making cross-reference difficult. Manufacturing dates are not published—only expiration dates. Water content analysis and endotoxin screening are present in recent certificates but absent in older ones, suggesting a recent process improvement. This creates a fragmented documentation record.
Customer support is responsive and knowledgeable. Both email and phone support are available, and staff can discuss testing methodology and lab partnerships in detail. Response times average 4-6 hours for email and same-day for phone during business hours. However, some support staff provided generic answers when asked about testing acceptance criteria or equipment specifications.
The affiliate program is completely hidden. No affiliate page, commission rates, or program terms are published. Interested parties must contact the company directly. This is a significant transparency gap that contrasts sharply with their otherwise open lab partnership policies.
Shipping transparency is minimal. Quartz states they use 'secure packaging' and 'protective materials' but provides no detail about temperature control, monitoring, or handling protocols. No packaging specifications or chain-of-custody documentation is published.