Guru Peptides
Guru Peptides is a recognized vendor with a moderate catalog of 34 listings. They offer in-house QC for purity testing and provide fast shipping options. Payment is available via credit card only. The vendor lacks significant community presence on Reddit or Trustpilot, with most mentions coming from YouTube.
Score Breakdown
- Purity Testing20%55/100
- Community Reputation15%62/100
- FDA / Regulatory13%85/100
- Shipping & Fulfillment12%80/100
- Payment Security10%75/100
- Customer Service10%60/100
- Catalog Depth10%70/100
- Price Competitiveness10%65/100
Evidence
Pros & Cons
Pros
- Aggressive single-vial pricing — many peptide SKUs land in the $20-$35 range, with Tirzepatide (GLP-1/GIP RA) at $69.95 for 5mg ($14/mg) and $109.95 for 10mg ($11/mg), Retatrutide (GLP-3) at $69.95 for 5mg ($14/mg) and $159.99 for 15mg ($10.66/mg)
- Established storefront with copyright dating to 2017 — longer operating history than most newer vendors
- Two GLP-class size tiers (5mg + 10mg Tirzepatide; 5mg + 15mg Retatrutide; 5mg + 15mg Semaglutide) — useful for researchers running scaled protocols without committing to the larger vial
- US-based fulfillment from West Palm Beach, FL with Monday-Friday shipping cutoff at 3PM EST
Cons
- Multi-category catalog includes SARMs, thyroid hormones, anti-aromatase agents, prolactin agents, and PDE5 inhibitors — a broader scope than pure-peptide vendors
- Third-party COA (Janoshik / Finnrick / equivalent) provider not surfaced on the public site — independent purity verification not currently published
Specialties
Payment Methods
Shipping
- Domestic
- next business day after 3PM EST cutoff
- International
- No
- Tracking
- Yes
- Carriers
- —
Testing Methodology
Vendor-provided product information emphasizes quality sourcing and packaging, but per-batch third-party COA documentation (Janoshik / Finnrick / equivalent) is not surfaced on the public site as of the scrape date. Independent purity verification is not currently published.
FDA Warning History
No FDA warning letters on record.
Product Catalog
Every product we track from Guru Peptides, linked to its peptide research profile. Prices refreshed periodically — verify on the vendor site before ordering.
Guru Peptides — Frequently Asked
- Is Guru Peptides legit?
- Guru Peptides is a research-peptide vendor tracked in the Stacked directory, holding an independent Stacked Score of 66/100. Our score weighs third-party testing, reputation, transparency, and shipping — see the full breakdown above. No FDA warning letters are on record for Guru Peptides as of our last review.
- What is Guru Peptides's Stacked Score?
- Guru Peptides holds a Stacked Score of 66/100. Guru Peptides is a recognized vendor with a moderate catalog of 34 listings. They offer in-house QC for purity testing and provide fast shipping options. Payment is available via credit card only. The vendor lacks significant community presence on Reddit or Trustpilot, with most mentions coming from YouTube. The score is editorial and independent of our affiliate relationship.
- Does Guru Peptides third-party test its peptides?
- Vendor-provided product information emphasizes quality sourcing and packaging, but per-batch third-party COA documentation (Janoshik / Finnrick / equivalent) is not surfaced on the public site as of the scrape date. Independent purity verification is not currently published.
- Does Guru Peptides ship internationally?
- Guru Peptides ships within the US. Typical domestic delivery runs next business day after 3PM EST cutoff. Tracking is provided. Confirm current shipping terms on the vendor's site before ordering.
- Has Guru Peptides received any FDA warning letters?
- No FDA warning letters are on record for Guru Peptides as of our last review. We surface any that appear on the vendor profile.
Affiliate Disclosure
Disclosure
Stacked earns a commission on purchases via affiliate links on this page. This does not influence our Stacked Score methodology.
