Science.bio — one of the most respected research-chemical suppliers — permanently closed in January 2026, leaving a large base of researchers looking for a trustworthy replacement. This guide covers what happened, how the shutdown was handled, and why Purgo Labs is the strongest like-for-like alternative: COA-verified compounds, US-based fulfillment, and a 20% discount code (HEALTH).
Verdict: Science.bio permanently closed in January 2026; Purgo Labs is the strongest like-for-like replacement for its peptide range — lab-verifiable certificates, deeper GLP-1 catalog, code HEALTH.
Science.bio Is No Longer Operating
Science.bio announced its permanent closure on January 27, 2026 and discontinued all sales. Unlike several competitors, it committed to fulfilling outstanding orders or issuing refunds before winding down. The website is now offline and no new orders are being accepted.
Our Recommendation (2026)
Purgo Labs is the closest like-for-like replacement for Science.bio. Science.bio's customers valued it for one thing above all — verified quality — and that is exactly where Purgo Labs is strongest: third-party Certificates of Analysis on every batch, publicly accessible on each product page.
Purgo Labs is also more peptide-specialized than Science.bio's broad research-chemical catalog, with a deeper GLP-1 and longevity selection. Combined with the HEALTH discount code (20% off), it is a practical, cost-effective place for former Science.bio researchers to rebuild their supply.
Shop Purgo Labs — Use Code HEALTH for 20% OffScience.bio was a US research-chemical supplier widely regarded as one of the most reputable vendors in the space, with a reputation built specifically on quality and testing standards. Its catalog spanned research chemicals, SARMs, and peptides, and it was a common first choice for researchers who prioritized documented purity over the lowest price.
The company announced its permanent closure on January 27, 2026. The shutdown was voluntary — the founders chose to close rather than face the legal action several peers were confronting. Notably, Science.bio committed to fulfilling all outstanding orders or providing full refunds before shutting down, which set it apart from vendors that disappeared without resolving pending orders.
Science.bio's closure was part of a broader industry contraction. At least nine major vendors — including Peptide Sciences, Amino Asylum, and Paradigm Peptides — closed between mid-2025 and mid-2026 as FDA enforcement escalated from warning letters to raids and prosecutions, and as Eli Lilly and Novo Nordisk pursued lawsuits against GLP-1 suppliers.
| Category | Purgo Labs | Science.bio |
|---|---|---|
| Current Status | Active — accepting orders | CLOSED (permanently, January 2026) |
| Third-Party COA | Every batch, publicly accessible | Was well-tested — no longer available |
| Purity Standard | ≥99% (stated + COA verified) | Was high-purity (now irrelevant) |
| Product Catalog | 40 compounds incl. GLP-1/GLP-2/GLP-3, NAD+ | Broad research-chem catalog — now unavailable |
| GLP-1 / Metabolic Peptides | GLP-1 (semaglutide), GLP-2 T (tirzepatide), GLP-3 R (retatrutide), AOD-9604 | No longer available |
| Shipping | 1–2 business day processing, US-based | No longer shipping |
| Customer Support | Active support team | No longer operating |
| Order Handling at Closure | N/A — active | Fulfilled outstanding orders / issued refunds |
| Discount Code | Code HEALTH — 20% off | N/A — closed |
Science.bio's whole reputation was verified quality. Purgo Labs provides third-party Certificates of Analysis for every batch, accessible on each product page — the single factor that matters most to researchers migrating from Science.bio.
Purgo Labs carries GLP-1 (semaglutide), GLP-2 T (tirzepatide), GLP-3 R (retatrutide) and AOD-9604, plus longevity compounds NAD+, Epithalon, MOTS-c, and SS-31 — a more peptide-focused selection than Science.bio's broad research-chemical range.
Purgo Labs ships from the United States with 1–2 business day processing — matching the domestic fulfillment Science.bio customers were used to, without international customs delays.
Rebuilding a research supply after a shutdown gets expensive. Use code HEALTH at checkout for 20% off all products at purgolabs.com to offset the switch.
While Purgo Labs is our top recommendation for researchers transitioning from Science.bio, several other suppliers remain active in 2026. Commonly cited options include Core Peptides (broad catalog, HPLC+MS testing) and Sports Technology Labs (US vendor operating since 2018, with publicly posted third-party COAs). Both are covered in separate comparison guides on this site.
Purgo Labs offers COA-verified research peptides with US-based fulfillment. Use code HEALTH for 20% off your first order.
Shop Purgo Labs — Code HEALTH for 20% OffYes. Science.bio announced on January 27, 2026 that it would permanently close and discontinue all sales of research products. The closure was voluntary — the founders chose to wind the business down rather than face the legal action that hit several competitors. The website is offline and the company is no longer accepting orders.
Science.bio did not release a detailed public explanation. The closure came during a sharp escalation in FDA enforcement against research-chemical vendors and a wave of lawsuits from Eli Lilly and Novo Nordisk targeting GLP-1 suppliers. Science.bio was one of at least nine major vendors — alongside Peptide Sciences, Amino Asylum, and Paradigm Peptides — that closed between mid-2025 and mid-2026 as the regulatory and legal environment tightened.
Science.bio handled its shutdown better than most. Before closing, the company committed to fulfilling all outstanding orders or issuing full refunds — a notable contrast to vendors that left customers stranded. If you have an unresolved order or refund from Science.bio, contact your original payment provider; but most customers were made whole at closure.
Purgo Labs is one of the strongest alternatives for researchers who relied on Science.bio for COA-verified compounds. Purgo Labs provides third-party Certificates of Analysis on every batch and carries 40 compounds including GLP-1 class peptides (semaglutide, tirzepatide, retatrutide), longevity compounds (NAD+, Epithalon, MOTS-c, SS-31), and recovery peptides (BPC-157, TB-500). Use code HEALTH for 20% off at purgolabs.com.
Yes. Science.bio was widely regarded as one of the most respected research-chemical suppliers, known specifically for its quality and testing standards. That reputation — and the way it wound down responsibly — is why so many of its former customers are looking for a like-for-like replacement rather than the cheapest option.
On the metrics that mattered to Science.bio customers — third-party COA verification, purity standards, and US-based fulfillment — Purgo Labs matches the standard. Purgo Labs is more peptide-specialized than Science.bio, with a deeper GLP-1 and longevity catalog. The HEALTH discount code (20% off) also makes it cost-competitive for researchers rebuilding their supply after the shutdown.
Where the evidence points
Science.bio wound down responsibly and warns that no other site is authorised to represent it. Publishes per-lot COAs naming the testing laboratory — SteriGenix and Freedom Diagnostics — with lot numbers, test dates, measured net peptide content and direct verify-at-lab links. HPLC and mass spectrometry testing, US-based fulfilment from Scottsdale, Arizona, same-day dispatch on weekday orders before 2PM EST, and a 60-day money-back guarantee.
Purgo Labs is our primary affiliate partner; we earn a commission on that link. The score is computed from published evidence and does not read partner status.