Science.bio Coupon Code — SBREFUGEE25
Science.bio closed permanently in January 2026. To welcome researchers who need a new supplier, Pure US Peptide is offering 20% off your first order with the code below.
Why we're running this code
In January 2026, Science.bio announced its permanent closure. Its own site at science.bio now carries the notice, which reads in part: "After careful consideration, Science.bio has made the decision to permanently close and discontinue the sale of research products." The longevity, nootropic, and biohacking research community lost a familiar U.S.-based supplier. SBREFUGEE25 offsets the friction of switching vendors and re-validating supply against your prior purity baseline.
One thing worth repeating from that notice, because it protects you and has nothing to do with us: Science.bio warns that any "website, entity, or individuals claiming to be Science.bio, a successor to Science.bio, or falsely claiming to sell our products are fraudulent, unauthorized, and have absolutely no affiliation" with them. Pure US Peptide makes no claim to be a successor to Science.bio and does not sell their products. We are a separate vendor offering our own catalog.
For the full closure timeline and primary sources, see our companion explainer: What Happened to Science.bio. For a side-by-side comparison and our full research catalog, see the Science.bio alternative page.
How to use the code
- Click any "Apply & shop" button on this page (the discount is applied at the cart automatically).
- Or, type SBREFUGEE25 into the promo field at checkout.
- 20% applies to your subtotal. One-time use per researcher.
Most-used Science.bio compounds in our catalog
If you ordered the longevity workhorses or nootropic pair from Science.bio, here's where to start:
- MOTS-c — mitochondrial-derived peptide
- NAD+ — nicotinamide adenine dinucleotide
- BPC-157 — connective-tissue research workhorse
- TB-500 — actin-binding research peptide
- Selank — selective nootropic research peptide
- Semax — nootropic research peptide
Frequently asked about the coupon
Is SBREFUGEE25 stackable with other discounts? No — the code is a standalone first-order discount and does not stack with bundle pricing or sitewide promos. Pick whichever discount yields the larger reduction at checkout.
Does it expire? No published end date. The code was active and validating at 20% off when we last checked it on July 31, 2026. Check this page for current status.
Does it include free shipping? Yes. Every U.S. order ships free, and SBREFUGEE25 discounts your order subtotal by 20%.
Do I need to prove I was a Science.bio customer? No proof is required. The code is open to any new researcher placing a first order at Pure US Peptide.
Will it work on bundles or stacks? The code applies to the cart subtotal including bundle and stack products. If you are validating a first-batch order across multiple compounds, a stack often gives the best per-mg cost basis.
What you get with Pure US Peptide
- 53 HPLC-verified listings across 31 distinct research compounds. 37 of the 53 publish a lot-specific certificate of analysis on the product page itself; the remaining 16 show a pending-upload badge.
- U.S. fulfillment with same-day shipping. No international imports, no customs delays.
- Card, Zelle, Venmo, and Cash App payment methods.
- Research-only positioning across every product page, blog post, and customer email.