Advanced compounds.
Verified integrity.
HPLC and mass-spec verified — every peptide is independently tested, with certificates of analysis available on request.
Featured products.

GLP-3 RT
Retatrutide · 10 mg
HPLC + MSIdentity verified≥ 99% purityThird-party testedCOAs availableOn request View details
BPC-157
Pentadecapeptide · 10 mg
HPLC + MSIdentity verified≥ 99% purityThird-party testedCOAs availableOn request View details
GHK-Cu
Copper tripeptide-1 · 50 mg
HPLC + MSIdentity verified≥ 99% purityThird-party testedCOAs availableOn request View details
TB-500
Thymosin β4 fragment · 5 mg
HPLC + MSIdentity verified≥ 99% purityThird-party testedCOAs availableOn request View detailsAdvancing research through trust.
-
Independent verificationEvery production lot is independently tested — HPLC for purity, mass spectrometry for identity.
-
Independent documentationA certificate of analysis is available for the peptides in our catalog, issued by an independent laboratory rather than in-house.
-
Research use onlyNo health claims, no dosing guidance — research material, documented as such. Not a drug or supplement, and not for human or veterinary use.
-
Tracked deliveryOrders ship from the United States, and every parcel carries a tracking number you can follow from your account.
Aminent Labs is a United States research-use-only supplier. Material is produced by established manufacturing partners under controlled conditions and verified using validated analytical methods.
View testing standards


Three non-negotiables.
Verified Quality
Every lot must clear a 99% purity threshold by HPLC before release.
Transparent Testing
Every production lot carries its own certificate of analysis.
Research Standards
Supplied strictly for in-vitro laboratory research.
What every certificate
has to answer.
Four questions, one document — recorded against the exact lot in the vial you receive, never a sample report reused across batches.
Is it the molecule on the label?
Mass spectrometry measures the molecular mass of the material and compares it against the mass expected from the stated sequence. The certificate records the method used and the reading obtained for that lot.
- Sequence and expected mass
- Analytical method named
- Lot-specific information
- Documented on the Certificate of Analysis
How much of it is the stated peptide?
Reverse-phase HPLC separates the sample into its components and reports the main peak as an area percentage. The certificate records that figure together with the method and detection conditions it was measured under.
- Area-percent purity figure
- Method and detection conditions
- Lot-specific information
- Documented on the Certificate of Analysis
How much of the vial’s mass is peptide?
A lyophilized vial also holds residual water, counter-ions and salts. Net peptide content states what proportion of the total mass is peptide at all — a different figure from HPLC purity, and the one molar calculations depend on.
- Peptide mass as a proportion of fill
- Reported separately from purity
- Basis for concentration calculations
- Documented on the Certificate of Analysis
What form does it arrive in?
Material is supplied lyophilized and sealed. The certificate records the physical form and appearance of the lot, along with the storage conditions it is intended to be held under and the date it was analyzed.
- Physical form and appearance
- Storage conditions recorded
- Date of analysis
- Documented on the Certificate of Analysis
Every shipment includes documentation tied to the corresponding lot.
View Example COAA rigorous five-step process behind every vial.
Solid-Phase Synthesis
The peptides we supply are made by solid-phase peptide synthesis (SPPS) — the industry standard for research-grade material.
HPLC Purification
Each batch is purified through preparative HPLC to achieve our minimum 99% purity threshold.
Quality Control & COA
Multi-step QC including analytical HPLC, mass spectrometry, and amino acid analysis — documented in a full COA.
Per-Lot Documentation
Every batch is documented with its HPLC and mass-spectrometry results, issued by an independent laboratory.
Secure Shipping
Sealed vials packaged under controlled conditions with protective cushioning and full documentation.
Sealed, documented, and out the door fast.
Same-day processing
Orders placed before the daily cutoff are packed and dispatched the same business day and ship via USPS Priority Mail.
Free over $150
Flat-rate domestic shipping, and it's free once your order passes $150 — the threshold shows live in your cart.
Protective packaging
Vials are sealed and cushioned for transit. The certificate of analysis for your lot is available to view online at any time.
Tracked to your door
Every U.S. order ships with tracking so you can follow it from dispatch to your door.
Frequently asked.
What does “Research Use Only” mean?
Everything we supply is sold strictly for in-vitro laboratory research and analytical use. These materials are not drugs, supplements, cosmetics, or food, and are not intended for human or veterinary use, diagnostic procedures, or any in-vivo application.
Do you provide a certificate of analysis?
Yes — every lot has a certificate of analysis documenting HPLC purity and mass-spectrometry identity, available on request, showing HPLC purity and mass-spectrometry identity for the peptide you ordered.
What purity standard do you hold?
Every peptide is purified to a minimum of 99% by HPLC before it is released.
How is identity confirmed?
By mass spectrometry against the expected molecular weight, alongside analytical HPLC for purity. Both results are recorded on the COA.
How fast do you ship, and what does shipping cost?
Orders placed before the daily cutoff are processed the same business day and ship via USPS Priority Mail. Shipping is free on orders over $150.
How should the peptides be stored?
Lyophilized peptides ship sealed and are generally best kept cold and away from light. See each product page and its COA for compound-specific storage guidance.
Where do you ship?
We currently ship within the United States.
Stock the
bench.
Browse the full catalog — every peptide with HPLC and mass-spec purity data.
Browse peptides