Support
Talk to the house
Email is the fastest way to reach us. Include your order number, or the SKU and lot number where relevant — it gets you a straight answer in one reply instead of three. We typically respond within 2 business days.
Email us
support@bigcatpeptides.comQuote your order number on anything order-related.
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Order & shipping
Order status, shipping and storage questions, a damaged or incorrect delivery.
Certificates of analysis
Current COAs are on the product pages. For another lot, include the SKU and lot number.
Product & handling
Storage, handling, purity and lot-testing questions.
Wholesale & institutional
Bulk quotes and recurring supply for labs and institutions.
Looking for policies instead? See shipping & returns, the FAQ, or our research-use terms.