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Frequently asked questions
What is Looksmaxxing Stacks?+
An independent peptide catalog. We list 139 research-grade compounds from a verified supplier, with ≥98% HPLC purity verification. We earn a commission on purchases made through our links.
Do you ship the products?+
No. All orders are fulfilled by our partner supplier. We are an affiliate catalog — we help you find and compare compounds, and link you to the supplier to purchase.
Are these products legal?+
Research peptides are legal to purchase in the United States for laboratory and in-vitro research use. They are not FDA-approved for human use.
How long does shipping take?+
1–2 business days processing, then 2–5 business days shipping within the US via USPS or UPS. Free shipping on orders over $200.
Can I return a product?+
Unopened, sealed products can be returned within 30 days. Contact the supplier directly to initiate a return.
What is HPLC purity testing?+
High-Performance Liquid Chromatography. It measures the percentage of the target compound in the sample. ≥98% means at least 98% of the vial contents are the labeled compound.
Do you have certificates of analysis?+
Yes — certificates of analysis (COA) are available from the supplier on request for every batch.
What is bacteriostatic water?+
Sterile water with 0.9% benzyl alcohol preservative. It is required to reconstitute lyophilized (freeze-dried) peptide powders before use. We sell it starting at $11.69.
Do I need a prescription?+
No. Research peptides are sold for laboratory use and do not require a prescription.
Are your prices the same as the supplier?+
Yes. The prices on our site match the supplier exactly. Our commission comes from the supplier, not from a markup on your order.