Nucleus Research Compounds
Sign in

Contact

Get in touch

The fastest way to reach us is the live chat in the corner of every page. We read and answer messages ourselves — no ticket queues, no bots.

Live chat

Open on every page of this store — press the chat bubble in the bottom corner. Leave a message any time; if we're away we'll reply as soon as we're back.

Response time

Usually the same day

Order help

Have your Square receipt ready

Terms

In-vitro research use only

What can we help with?

Orders & payments

Questions about an order, a Square payment receipt, or checkout issues — have your payment confirmation from Square handy so we can find it faster.

COA certificates

Every batch with an independent lab report carries a View COA button on its product page. If a certificate link doesn't open, tell us which product and we'll fix it.

COA & specs

Shipping & packaging

Vials are stored cold, packed in protective materials, and sealed for transit. If something arrived damaged, contact us as soon as it lands.

Storage & handling

Storage guidance for every compound, including freezer storage and avoiding repeated freeze–thaw cycles.

Storage guide

Many quick answers are already on the FAQ page. For anything about the terms of sale, see the compliance page.

Verified orders

What researchers say

4.8 / 5 average
“Third order from Nucleus and every vial arrived cold-packed with the COA matching the lot number on the label. Weighing on my milligram scale, amounts have been spot on.”
Marcus T.Retatrutide · September 2026
“What sold me was being able to open the Janoshik report right on the product page before buying. Shipping was two days and the vials were sealed properly.”
Dana R.BPC-157 · September 2026
“Clean site, honest lab data, no hype claims. Would like more bundle options, but the peptides themselves test exactly as listed.”
Kwame O.TB-500 · August 2026
“Recommended. Fast shipping, and delivery times were fully in line with the estimated window. Packaging was solid — even with a less-than-careful courier, everything arrived intact with no damage. On top of that, the COA certificates and test results were included. Fully recommended.”
Verified buyerPeptide order · October 2026
“TOP!! Everything 5+ The delivery arrived as agreed, was well packaged, and everything was in perfect condition. Shipping was very fast, and communication was always prompt and reliable.”
Verified buyerPeptide order · October 2026
“First order, will order again. Just had my first order and can't complain. Delivery was fast. They have certificates for selected products. So far so good.”
Verified buyerPeptide order · October 2026