Wholesale & bulk research peptides, UK.

Every wholesale order is priced bespoke. Once we receive your selection we confirm stock and batch availability, then send a written quote and lead time. Final pricing reflects the specific product mix, requested volumes, supply cadence and any custom services. We don’t publish wholesale rate cards because no two orders look alike.

No fixed monetary minimum. We treat any genuine B2B enquiry as a wholesale enquiry, from a single research lab ordering modest quantities to a distributor placing standing orders. Practical minimums apply for custom services such as bespoke vial sizes or custom blends, which we confirm at quote stage.

In-stock items dispatch within standard UK timelines. Multi-vial orders above 50 units may run on a confirmed batch schedule (typically 7 to 14 days) so we can guarantee single-batch consistency and a clean COA across the full quantity. Larger orders or scheduled repeat supply is planned per cycle.

Yes. Every wholesale lot ships with the batch-specific Janoshik Analytical HPLC certificate of analysis. The verification key on each COA is independently checkable on Janoshik’s public portal. For multi-vial orders we guarantee single-batch consistency across the full quantity wherever feasible.

Yes, for qualifying volumes. Outside the standard 10 / 20 / 30 / 60 mg ladder we can fill bespoke weights, including fractional fills for assay-development use. MOQ depends on the compound. Tell us what you need and we’ll scope it.

Yes. Beyond our standard KLOW research blend we’ll scope custom blends for qualifying volumes, with each component HPLC-verified individually plus blend-stability data on request.

For qualifying volumes we can add your facility name, research-programme code, internal batch reference, or other identifying labelling alongside our standard compound + dose label. We don’t white-label as another commercial brand.

Yes. For research programmes running on a known cadence we schedule recurring supply windows (monthly, quarterly, or per-protocol) with reserved batch capacity. This guarantees continuity of supply and lets us align COA dates and batch references across cycles.

Yes, single-batch consistency is the default for wholesale orders wherever feasible. For very large orders we may need to scope a confirmed batch window in advance, which we agree at quote stage.

Standard wholesale ships within the United Kingdom. International shipping is available case-by-case for established distributor and reseller partners with appropriate import documentation in their jurisdiction. Talk to us about the destination before placing the order.

Standard wholesale orders settle by card payment link or UK Faster Payments bank transfer up front (your choice), with stock confirmed before any payment is requested. For established distributor partners and recurring research-supply agreements, net terms can be discussed after the first two completed cycles.

Yes, every wholesale order is invoiced through Black & White Peptides Ltd, registered in England and Wales (Companies House 16876162). VAT details on the invoice match our HMRC registration.

Lyophilised vials are stored sealed in amber glass at 2 to 8 degrees Celsius and dispatched with appropriate cold-chain considerations for the season. Discreet plain outer packaging is used by default. Specialist cold-chain shipping is available on request for high-value orders.

We accept return of any sealed vial whose batch does not match the Janoshik COA on independent re-test, full credit applied. Retained samples are kept and can be made available for third-party verification on request.

Yes. Established distributor partners can arrange collection from our UK dispatch point using their own logistics, where we hand over the sealed cold-chain packaging on signed receipt.

Standard B2B confidentiality applies: we do not share or sell client or order data. For institutional and distributor partners with stronger confidentiality requirements we sign a mutual NDA on request before discussing pricing or volumes.

Yes. The compound, synthesis route, lyophilisation, vial format and Janoshik HPLC verification are identical to our retail stock. The only differences are quantity, the COA covers a larger lot, and pricing is confirmed bespoke.

Every product in the catalogue is supplied as a research-grade reference reagent for laboratory and in-vitro research use only. No therapeutic claim, dosing guidance or human-use intent is made or implied. Wholesale partners are expected to operate within the appropriate research-reagent supply category in their jurisdiction.