Same product. Comparable prices.
The lowest effective price in stock for a Oxytocin 5 mg vial is $17.50 ($3.50 per mg) at RIVN Peptides, checked Oct 6, 2026, across 7 offers compared. 2 picks with a product COA on file.
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7 of 7 matching offers
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2 picks for this product as of Oct 6, 2026. Picks are up to three of the lowest effective prices among vendors that passed the trust floor, were in stock and checked within 72 hours, and have a COA on file for this product and strength tested within the last 12 months. Fewer than three is normal. Affiliate relationships never affect picks or order. A COA shows the batch it names; it does not prove which lot a vendor ships today.
One-package prices require ordering one sellable package of the selected size. Bulk deals appear in the separate purchase-size view.
Effective prices include only verified automatic promotions or the selected verified coupon scenario. They exclude shipping and tax. Automatic promotions are not stacked with coupons unless the combined terms were verified. Sorting changes this table only; vendor grades and picks are unchanged.
1 displayed offer includes a dated automatic promotion. Listed baselines and observed deal terms remain visible.
| Vendor and trust | Effective price | Stock record | Price checked | Product |
|---|---|---|---|---|
| RIVN Peptides Grade B+80/100 Passed trust floorVendor tests other products23 public reports from this vendor, none matched to this product. | $17.50$3.50 / mg effectiveAutomatic buy x get y free · pay $34.99 for 2 packages (1 ordered)Listed baseline $34.99 per package · promotion observed Oct 4, 202615% off · eligibility unconfirmedCode: The affiliate dashboard lists pepgrades15 as a 15% discount. Customer eligibility, product exclusions, minimums, and combination with the observed price are not established. No discount is included in the comparison. Complete pricing conditions are unconfirmed. Excluded from price calculations.Source: rivnresearch.com · Affiliate dashboard coupon table · /affiliates/. Code recorded Sep 16, 2026; terms reviewed Sep 21, 2026.A commission rate is not a shopper discount. Coupon use may attribute a purchase to PepGrades. | In stock when checked | Price recorded on this date | Product link unavailable |
| Rocky Mountain Compounds Grade B+84/100 Passed trust floorPick 1Lab-verified COATested Aug 6, 2026 · Freedom Diagnostics · ref 2608030750 · purity 99.48% · batch N73126 Lab portal copy · Lab copy ↗ · SHA-256 29a37200f303… | $20$4 / mgDeal not verified · listed price shown | In stock when checked | Price recorded on this date | Check offer ↗PepGrades earns nothing from this link. |
| RUO Grade B75/100 Passed trust floorPick 2Lab-verified COATested Jan 20, 2026 · Janoshik Analytical · ref 100911 · purity 99.01% · batch Unknown Lab portal copy · Lab copy ↗ · SHA-256 0ec4fc0fd2f5…1 older report on file for this product. | $22$4.40 / mgDeal not verified · listed price shown | In stock when checked | Price recorded on this date | Check offer ↗PepGrades earns nothing from this link. |
| Premier Bio Labs Grade A-87/100 Below trust floorLab-verified COATested Jul 7, 2026 · ILS Laboratories · ref COA-2026-955211 · purity 99% · batch OX01 Lab portal copy · Lab copy ↗ · SHA-256 e640b340df0d… | $29$5.80 / mgDeal not verified · listed price shown | In stock when checked | Price recorded on this dateLatest check unavailable; showing last observation (attempted Oct 6, 2026). | Product link unavailable |
| Evolve Peptides Grade A-86/100 Passed trust floorVendor tests other products275 public reports from this vendor, none matched to this product. | $35$7 / mgDeal not verified · listed price shown | Out of stock when checked | Price recorded on this date | Product link unavailable |
| Peptides 4 Research Not enough information to gradeNot graded Below trust floorProduct COA on fileTested Feb 19, 2026 · BioAnalytical Laboratory, Inc. · ref COA260788 · purity 99.74% · batch 260212OX53 Vendor-hosted copy · Lab site ↗ · SHA-256 238b019d6219… | $39$7.80 / mgDeal not verified · listed price shown | In stock when checked | Price recorded on this date | Product link unavailable |
| Peptide Crafters Grade B+82/100 Passed trust floorProduct COA on fileTested Sep 24, 2025 · Vanguard Laboratory · ref V250917-18 002 · purity 98.83% · batch PC-J1-OXT Vendor-hosted copy · Lab site ↗ · SHA-256 14b0d5637a5f…2 older reports on file for this product. | $45$9 / mgDeal not verified · listed price shown | Out of stock when checked | Price recorded on this date | Product link unavailable |
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Oxytocin 5 mg vial
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