For buyers
1. Find a peptide or vendor
Search by compound name (BPC-157, Tirzepatide, Semaglutide), browse by goal (weight loss, muscle growth, recovery), or jump straight to a vendor profile. Every page is built around what real research-peptide buyers are actually trying to figure out.
2. Read the reviews
Every vendor profile shows the overall star rating plus four sub-ratings (Effectiveness, Shipping, Price, Support), the rating distribution from 5★ down to 1★, and the full feed of individual reviews. Reviews are sorted by recency by default — no algorithm-inflated "most helpful" bias.
- Verified buyerbadge means the reviewer's email was confirmed and (if they uploaded order proof) the order was cross-checked.
- Vendor replies are inline with the review, never substituted for the original.
- Sub-ratings let you filter by what matters to you. If you care about shipping speed more than price, you can see at a glance which vendors win on that axis.
3. Compare, then click through
On every peptide page, the "Where to buy" comparison table ranks vendors by a composite score (rating × review volume × tested purity × in-stock). You see prices, lab-tested purity, and shipping origin side by side. The Buy buttons are affiliate-tagged so we earn a commission — but the same affiliate link is used regardless of ranking, so we have no incentive to push one vendor over another.
4. Come back and write a review
The whole site only works if real buyers contribute reviews back into it. Writing a review takes about two minutes. Once you verify your email, your review goes live within 24 hours.
For vendors
How rankings are computed
Composite score: rating × log(review_count) × (purity / 100) × stock_factor. A vendor with 200 verified reviews at 4.5 stars typically outranks a vendor with 30 reviews at 4.8 stars — review volume is a confidence signal, not just an average. Lab-tested purity and current stock availability act as multipliers.
Claim your profile
Anyone can be reviewed on VialVerdict — it's open by default. Claiming your profile is free and unlocks the ability to:
- Reply publicly to reviews (always shown alongside the original)
- Publish HPLC certificates of analysis on your product entries
- Update your description, payment methods, and refund policy
- Get notified when a new review is posted
To claim a profile, email us from an address on your domain. We verify ownership manually before granting access.
Review moderation
Every review enters a moderation queue before going live. We auto-screen for spam, profanity, and obvious shill patterns (coordinated review bursts, identical templates, IP clustering). A human spot-checks the rest. Approval typically takes under 24 hours.
We do not remove reviews because a vendor doesn't like them. We remove reviews when they violate our trust guidelines — fake purchase claims, off-topic content, doxxing, or threats.