- Independent
- Transparent
- Third-party tested
Peptide rankings, anchored in evidence.
Pepsider independently evaluates peptide shops and tracking apps against a published rubric. No paid placements, no affiliate ladders, no vendor relationships of any kind. Nine researchers across three countries, ordering anonymously with our own money since 2017.
- entries reviewed
- 0
- independent lab tests
- 0
- anchored scoring pillars
- 0
- sponsored placements
- 0
Browse all Pepsider rankings.
Today's #1 in each category.
The single highest-scoring entry from each ranking, with the headline strength and the trade-off we flagged. Full reasoning lives on the ranking pages.
- Third-party tests for purity, endotoxin, heavy metals, and sterility.
- Finnrick A on Retatrutide and BPC-157.
- $400 free-shipping floor.
- Support disclosure trails the testing story.
- Pre-purchase third-party CoAs.
- Cards, bank, and 6 cryptocurrencies.
- Highly reputable in the community.
- Smaller catalogue.
- 24h support window vs the sub-12h elite tier.
- Native iOS, Android, and web parity.
- Free math and interaction checker.
- Apple Health integration.
- AI protocol layer broadens the privacy and medical-posture audit surface.
Fully Independent Rankings
Pepsider runs on the nine of us, weekends, and a small server. No advertising, no affiliate links, no sponsored placements, no vendor relationships. We'd rather publish a short list we stand behind than a long one we don't.
About PepsiderTop-ranked European suppliers
See all 10 European vendors- Pre-purchase CoAs
- EU shipping
- Highly trusted
- 7-parameter testing
- Free worldwide shipping
- Since 2014
- Janoshik tested
- Netherlands · EU shipping
- Same-day dispatch
Top-ranked US suppliers
See all 10 US suppliersPeptide Partners- Multi-lab verification
- US domestic ship
- Finnrick A · Reta & BPC
- Multi-lab verification
- US domestic ship
- Finnrick A · Reta & BPC
- QR COAs · 3 labs
- Texas · same-day
- Veteran-owned
- Colmaric HPLC + MS
- Connecticut · US ship
- USP-grade bottling
Top-ranked peptide apps
See all ranked appsPeptIQ- Free reconstitution + dosing
- Half-life decay viz
- Apple Health sync
Smart Peptide Tracker- PIN + encryption
- One-time purchase
- No account required
PeptideCalc.io- Offline-first
- Optional iCloud sync
- No account required
- Free reconstitution + dosing
- Half-life decay viz
- Apple Health sync
- PIN + encryption
- One-time purchase
- No account required
- Offline-first
- Optional iCloud sync
- No account required
Five pillars for shops. Six for apps. Same anchored 1-5 scale.
Most ranking sites use vague 1-10 scores where "8" means "we liked it." That's why their lists shuffle every quarter for no defensible reason. Pepsider uses written anchors so two graders looking at the same vendor reach the same number - and any reader can audit the result.
Testing Standards
Independent third-party testing (Janoshik, Auxilium, Finnrick), per-batch coverage, fresh CoAs, pre-purchase access. In-house testing caps the score regardless of how long the vendor has been trading.
Trust
Weighted composite. Independent reviewer dossiers and blind-testing programs at the top; vetted Discord and skeptical Reddit in the middle; Trustpilot at the bottom because vendor-solicited reviews dominate that signal.
Shipping & Reship
Delivery success, stealth quality, customs handling, and reship/refund posture on documented losses. Heroic reship policy can't paper over chronic seizures, and clean delivery stats can't compensate for refusing reships.
Value
Price evaluated relative to verified purity, never raw cost. Suspiciously cheap loses points rather than gains them — the math of synthesis cost rules out 99% purity at the bottom of the price tier.
Support & Transparency
Response time, issue resolution, and honest sourcing and manufacturing disclosure. Cheerful replies don't compensate for opacity. Weighted lowest because it's the easiest pillar to perform well on for the wrong reasons.
Apps swap in their own six-pillar rubric: Functionality (30%), Privacy (25%), Reliability (20%), UX (15%), Pricing transparency (5%), and Safety content (5%). Full anchors for every score live on the methodology page.
Read the full methodologyContact us
Share verifiable evidence — CoAs, screenshots, or anything that could contribute to our rankings. We read every message, and documented corrections jump the queue for the next scoring round.
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