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High Quality Research Peptides

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$75.00$83.00

$55.00$230.00

$50.00$80.00

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fREQUENTLY ASKED qUESTIONS

At Peak Peptides, we only offer peptides that meet or exceed 98% purity, often surpassing 99%, as confirmed by independent third-party testing (including HPLC analysis). This strict verification process ensures our research peptides are of the highest quality, giving you complete confidence in every order.
At Peak Peptides, we dispatch all orders from our U.S. facility, with most customers receiving their shipments within 2-5 business days. Each package comes securely packed and includes tracking updates, no signature required.
Simply add Bacteriostatic Water (BAC Water) to the lyophilized peptide vial in your desired volume. For accurate dosing, we recommend using a peptide calculator (e.g., Peptide Calculator)(. https://peptide-calculators.com/) This helps ensure optimal concentration for your research needs.

Our peptides are shipping in lyophilized form, which is stable at room temperature during transit. Once received, store unopened vials in a cool, dry place.

After reconstitution, store between 2-8°C (36-46°F), keep refrigerated, avoid repeated freeze-thaw cycles, and protect from direct light.

Our peptides are shipped in lyophilized (freeze-dried) form, which ensures stability during transit. This powder form is highly stable at room temperature and resistant to temperature fluctuations that occur during shipping.

Research has shown no significant degradation or loss of purity when lyophilized peptides are exposed to room temperature during typical shipping timeframes. Each batch is verified for purity upon production, and our stability testing confirms maintenance of product integrity during standard shipping conditions.

For optimal long-term storage after receiving your order, we recommend storing the lyophilized peptides in a cool, dry place until reconstitution is needed.

For bulk inquiries and volume pricing, please email us at info@peakpeptides.com

All sales are final. Since we’re dealing with sensitive research compounds that require strict quality control, we can’t accept returns or exchanges.

Questions about your order? We’re happy to help – just reach out.