为以下用途构建的优质多肽 严肃的结果。

Yes — every lot is verified at independent ISO 17025-accredited labs before release. Each shipment includes the per-lot Certificate of Analysis with the HPLC chromatogram, ESI mass-spectrometry trace and LAL endotoxin assay attached, tied to your specific batch number.

Each per-lot COA includes the HPLC chromatogram (area-percent purity at 220 nm), the ESI mass-spectrometry trace confirming molecular weight to within ±1 Da, the LAL endotoxin assay result (<0.5 EU/mg), the batch number, the release date, and the storage and stability profile.

Lyophilized powders ship in discreet, protective insulated mailers at ambient temperature — peptides are stable in their freeze-dried state for several weeks above freezing. We use tracked couriers worldwide and refund or reship any package that arrives damaged or compromised.

Bitcoin (BTC), Monero (XMR), Ethereum (ETH), USDT (TRC-20 / ERC-20 / SOL), Solana, Litecoin and several others. Card and bank wire are available on request for larger orders.

Yes — to most jurisdictions. Customs handling is the buyer's responsibility, but we can adjust the declared description on the customs slip on request. Some destinations are restricted; the order page will tell you if yours is.

Send the lot number and we will re-test the retained sample at our reference lab. If the deviation is real, the order is refunded in full or replaced with a fresh lot. We don't argue about analytical data.