VERDICT
Arctic Lab Supply wins this matchup overall with 8.2/10 against 5.5/10 for TwoGuysPeptides. Arctic Lab Supply comes out ahead on purity & testing, transparency, price & value, shipping and customer reviews. Arctic Lab Supply publishes a free-shipping threshold ($149); TwoGuysPeptides does not. Arctic Lab Supply has a CodeVial code (10% OFF); TwoGuysPeptides has none. In short — TwoGuysPeptides: EU buyers fine with a Dutch-language site who want batches tested by an independent lab. Arctic Lab Supply: Buyers in the US or Canada who want lot-matched lab reports and same-day dispatch from Alaska.
| Criterion | TwoGuysPeptides | Arctic Lab Supply |
|---|---|---|
| Overall score | 5.5 | 8.2WIN |
| Purity & testing | 5.5 | 9.0WIN |
| Transparency | 5.0 | 9.5WIN |
| Price & value | 5.0 | 5.4WIN |
| Shipping | 6.0 | 9.5WIN |
| Support | 7.0 | 7.0 |
| Customer reviews | 5.0 | 7.3WIN |
| Ratings on other platforms | 3.0/5 from 2 reviews · ApexPeptidesBenchmark | 4.2/5 from 28 reviews · Trustpilot |
| Best coupon | Not published | 10% OFF |
| Price range | Not published | $27.99 |
| Free shipping from | Not published | $149 |
| Delivery | Dispatch within 24 hours on working days from the Netherlands, with tracking; carriers include PostNL | Same-day dispatch if paid by midnight ET; US Priority about 2–4 days, international usually 7–21 business days |
| Ships to | Europe | United States, Worldwide, Europe, Canada |
| Range | Research peptides, Peptides with COA, Lab-tested batches | Research peptides, Lab supplies, Vial-cap gear, Pre-order items |
| Purity claim | ≥99% | Not published |
| Lab testing | Batches blind-tested by Janoshik Analytical (HPLC, purity stated over 99%); reports verifiable at the lab, full reports for account holders. | 20 current lot-matched reports from ILS Laboratories and Freedom Diagnostics, viewable without an account. |
| Public COAs | No | YesWIN |
| Payment methods | Knab payment request, Cash on pickup, Online methods offered at checkout | Credit card, Bank transfer, Apple Pay, Google Pay, Zelle |
| Contact | E-mail, Phone, WhatsApp | E-mail, Contact form |
| Refunds | No return policy stated; complaints go by e-mail or WhatsApp, with a reply aimed within 14 days; Dutch law applies. | Full refund if cancelled before shipping; 30 days on unopened items (you pay return); damaged or lost: reship or refund if reported in 48 hours. |
Best codes
It takes 10% off your product subtotal on every order, for new and returning customers. One code per order: SAVE10 doesn’t combine with other codes or with first-order or welcome-back offers.
Source: arcticlabsupply.com/discount-code · checked Nov 3, 2026