Featured FAQs
How long does shipping take?
Standard ground: 5–7 business days. Express: 2 business days. Cold-chain on temperature-sensitive items adds zero time but ships from our nearest regional warehouse. See full shipping policy.
What's your return policy?
15 days from delivery, unopened and unused. Read the full return policy.
Are all reviews verified?
Yes. Every review on Peptide.best is gated to a verified delivered order within the last 365 days. Read about verified-buyer review enforcement.
Do you require a prescription?
For non-prescription research peptides, no. For pharmaceutical-grade prescription products (like tesamorelin), yes. See product page for individual labeling.
Where do I find my order tracking?
Sign in, go to My Orders, click any order. See tracking guide.
Can I cancel an order?
Yes, up to 1 hour after placement. After that, you'll need to wait for delivery and return.