Our Process
Five stages.
Zero shortcuts.
Every Puritide compound moves through the same five-stage pipeline, from vetted raw materials to a sealed, lot-verified vial on your bench. Here is exactly what happens at each stage.
Origin, Sourcing & Traceability
Securing premium foundations.
Every compound begins with pharmaceutical-grade amino-acid precursors sourced from vetted suppliers. Each incoming lot is logged with full traceability records, so any vial we ship can be traced back to the exact raw materials it was built from.
Suppliers are audited for consistency and documentation before entering our chain, and incoming materials are quarantined until identity checks clear.
- Vetted, audited suppliers
- Pharma-grade precursors
- Lot-level traceability from day one
Synthesis, Solid-Phase Assembly
Precision chain assembly.
Sequences are assembled by automated solid-phase peptide synthesis (SPPS), coupling one residue at a time under continuous monitoring. Reaction parameters are tracked at every coupling step, and each finished sequence is checked against its target before moving forward.
Automation removes operator variability, and per-step monitoring catches failed couplings early instead of at final QC.
- Automated solid-phase synthesis
- Per-coupling monitoring
- Sequence checked against target
Purification, Preparative HPLC
Refined to exceptional purity.
Crude peptide is refined by preparative high-performance liquid chromatography, separating the full-length target sequence from truncated chains, deletion sequences, and synthesis byproducts.
Fractions are collected and re-run until a single dominant peak remains, with a working target of ≥99% purity on every research peptide we list.
- Preparative HPLC
- ≥99% purity target
- Single dominant peak before release
Validation, Third-Party Testing
Proven, not promised.
Identity and purity are confirmed by mass spectrometry and analytical HPLC, run by an independent third-party laboratory, not just in-house instruments.
Every batch receives a certificate of analysis documenting verified purity, and every lot number can be checked against our production records on the verify page. Endotoxin screening is reported alongside purity.
- Independent third-party lab
- Mass-spec + analytical HPLC
- Batch COA, lot verifiable online
Activation, Fill & Fulfillment
Sealed for discovery.
Verified peptide is lyophilized for stability, filled under sterile conditions, sealed, and labeled with its lot number and QR verification code.
Orders ship cold-safe and tracked in discreet packaging, with the batch certificate of analysis accompanying every order.
- Lyophilized for stability
- Sterile fill & seal
- Cold-safe, tracked fulfillment
Custom formulations
Need a compound we don't list?
The same five-stage pipeline runs custom work: novel sequences, custom vial sizes, and blend formulations for research organizations. Send your target spec and we'll return feasibility, lead time, and pricing within one business day.
Process questions
What purity are Puritide research peptides?
Research peptides are purified to a ≥99% target and verified by independent third-party mass spectrometry and analytical HPLC. The verified figure for your exact lot is printed on its certificate of analysis.
Who performs the testing?
An independent third-party analytical laboratory. Certificates of analysis are archived in our certificates library, and any lot number can be authenticated on our verify page.
Do you produce custom formulations?
Yes. We quote custom syntheses, custom vial sizes, and blend formulations for research organizations, subject to feasibility review. Send your sequence or target spec through the inquiry form and we respond within one business day.
Are these products for human use?
No. Puritide Research is a research chemical supplier. We are not a compounding pharmacy or outsourcing facility and are not registered under FDA sections 503A or 503B. All products are strictly for laboratory and research use.
See the receipts: browse certificates of analysis or verify a lot number.
Puritide Research is a research chemical supplier. We are not a compounding pharmacy or outsourcing facility and are not registered under FDA sections 503A or 503B. Products are supplied strictly for laboratory and research use. Not for human or veterinary use.