VERDICT
Arctic Lab Supply wins this matchup overall with 8.2/10 against 6.7/10 for Radiant Peptides. Radiant Peptides scores higher on price & value. Arctic Lab Supply comes out ahead on purity & testing, transparency, shipping, support and customer reviews. Radiant Peptides has the lower free-shipping threshold (€49.99 vs $149). Arctic Lab Supply has a CodeVial code (10% OFF); Radiant Peptides has none. In short — Radiant Peptides: EU buyers in NL, BE, DE, FR, AT, LU or IE who pay by bank and want published lab reports. Arctic Lab Supply: Buyers in the US or Canada who want lot-matched lab reports and same-day dispatch from Alaska.
| Criterion | Radiant Peptides | Arctic Lab Supply |
|---|---|---|
| Overall score | 6.7 | 8.2WIN |
| Purity & testing | 8.0 | 9.0WIN |
| Transparency | 6.5 | 9.5WIN |
| Price & value | 5.6WIN | 5.4 |
| Shipping | 6.0 | 9.5WIN |
| Support | 6.5 | 7.0WIN |
| Customer reviews | 6.4 | 7.3WIN |
| Ratings on other platforms | 5.0/5 from 3 reviews · ApexPeptidesBenchmark | 4.2/5 from 28 reviews · Trustpilot |
| Best coupon | Not published | 10% OFF |
| Price range | €29.99 | $27.99 |
| Free shipping from | €49.99 | $149 |
| Delivery | Aims to dispatch within 1 working day of payment; delivery 1-2 days in NL, 2-4 days elsewhere | Same-day dispatch if paid by midnight ET; US Priority about 2–4 days, international usually 7–21 business days |
| Ships to | Netherlands, Belgium, Germany, France, Austria, Luxembourg, Ireland | United States, Worldwide, Europe, Canada |
| Range | Skin & pigmentation, Tissue repair, Metabolism & energy, Bundles | Research peptides, Lab supplies, Vial-cap gear, Pre-order items |
| Purity claim | Not published | Not published |
| Lab testing | Own batches go to Janoshik Analytical and are verifiable there; reports are published per product, some from other labs. | 20 current lot-matched reports from ILS Laboratories and Freedom Diagnostics, viewable without an account. |
| Public COAs | Yes | Yes |
| Payment methods | Bank transfer | Credit card, Bank transfer, Apple Pay, Google Pay, Zelle |
| Contact | E-mail, WhatsApp | E-mail, Contact form |
| Refunds | Justified defects reported within 7 days of receipt: free replacement, otherwise refund within 14 days; opened vials excluded from withdrawal. | 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