Wednesday, your trusted research partner

We're smaller, quieter, and pickier. Most catalogs compete on having the most SKUs, the loudest marketing, and the deepest discounts. Wednesday competes on trust, consistency, and a catalog experience that respects your time. We occasionally run promotions for our community, and we work with a small group of Wednesday ambassadors who genuinely use and trust the catalog, but you won't find countdown timers, urgency banners, or sponsored posts here. The goal is a catalog you come back to because the experience earns it, not because a coupon code expires tonight.

Every order is manually reviewed before anything ships. You'll receive tracking once it's confirmed. If something needs attention — an availability change, a question about your request — we reach out directly. No automated processing, no blind fulfillment.

By design. We carry what we can stand behind, not everything we could list. A smaller catalog means tighter quality control, better availability tracking, and fewer surprises. If something doesn't meet the bar, it gets pulled. Not discounted. Not clearanced. Removed.

Use the custom request form. Include the compound, size, quantity, and any timing details. We'll follow up directly with availability and pricing. Most custom requests are answered within one to two business days.

BAC Water — Bacteriostatic Water — is a sterile water solution containing 0.9% benzyl alcohol, which prevents bacterial growth after the vial is opened. In a laboratory setting, BAC Water is used to reconstitute lyophilized (freeze-dried) peptide compounds, bringing them from powder form into a solution that can be measured and used in research applications. Most peptide orders will require BAC Water for reconstitution. You can add it as a standalone item or alongside any catalog listing at checkout. If you're unsure whether your order needs it, it probably does.

Unreconstituted peptides (still in powder form) should be stored at −20°C (−4°F) in a dry, light-protected environment — a lab freezer works. They'll maintain stability for an extended period under these conditions. Once reconstituted with BAC Water, store the solution refrigerated between 2–8°C (36–46°F) and use within a reasonable research window. BAC Water itself can be stored at room temperature before opening. Short version: powder goes in the freezer, solution goes in the fridge, and keep both away from light. Avoid storage where the potential of vials being shaken is high. Straightforward once you do it once.