American Peptide Co. is a legacy U.S. peptide maker now part of Bachem. Learn what it sells, how it compares to other suppliers, and safety basics.
American Peptide Co. most commonly refers to American Peptide Company, Inc., a peptide manufacturer founded in 1972 in Sunnyvale, California, that became part of the Swiss peptide group Bachem in 2010. Today the name describes both a legacy brand and the U.S. catalog and custom-synthesis services that grew out of it. Its peptides are sold for research and manufacturing use, not as FDA-approved drugs for human consumption.
What Is American Peptide Co.?
American Peptide Company built its reputation as one of the first dedicated peptide houses in the United States. The company supplied synthetic peptides to pharmaceutical, biotech, diagnostic, and academic laboratories for nearly four decades before Bachem acquired it in 2010.
Key facts about the company:
- Founded: 1972 in Sunnyvale, California
- Owner: Bachem Holding AG, a Swiss peptide and oligonucleotide manufacturer
- Core business: custom peptide synthesis, catalog peptides, and GMP-grade manufacturing
- Customers: pharma and biotech R&D groups, contract research organizations, universities, and diagnostics makers
- Product status: research use only unless a specific GMP or clinical designation applies
Because the original facility sat in the Bay Area, older directories still describe it as an american peptide company california laboratories ordered from for decades. Many of those catalog numbers and technical documents now live inside Bachem's U.S. product pages.
What Products and Services Does the Company Offer?
The portfolio breaks into three broad buckets: off-the-shelf catalog peptides, made-to-order custom peptides, and regulated manufacturing for drug development.
- Catalog peptides: thousands of ready-to-ship sequences used as standards, substrates, and screening tools.
- Custom synthesis: any sequence you design, typically delivered in one to four weeks depending on length and target purity.
- GMP manufacturing: documented, audited production for clinical trials and commercial supply.
Common modifications include phosphorylation, biotinylation, fluorescent tags, cyclization, and stable-isotope labeling. Each lot normally ships with an HPLC trace and a mass spectrometry report.
Catalog Peptides vs. Custom Synthesis: Which Do You Need?
Most buyers fall into one of two camps. If your sequence is already published and you need a small amount quickly, the catalog route is cheaper and faster. If you are testing a novel design, you need custom work.
| Factor | Catalog Peptides | Custom Synthesis |
|---|---|---|
| Lead time | Days, if in stock | 1–4 weeks |
| Sequence | Fixed and published | Designed by you |
| Typical quantity | 1–10 mg vials | 5 mg to multi-gram |
| Relative cost | Lower per vial | Higher per sequence |
| Best for | Standards, assays, screening | Novel research and scale-up |
How It Compares to Other U.S. Peptide Suppliers
The U.S. market mixes large regulated manufacturers with smaller specialty synthesizers and low-cost overseas vendors. Price is rarely the only variable that matters.
| Supplier Type | Strengths | Trade-offs |
|---|---|---|
| Large GMP manufacturer (American Peptide Co./Bachem) | Regulatory documentation, scale, audit history | Higher minimums, longer quoting process |
| U.S. specialty synthesizer | Flexible batch sizes, direct access to scientists | Fewer clinical-stage programs |
| Overseas research vendor | Low list prices | Variable QC, shipping and customs delays |
Searches for an american peptide company in usa often return both Bachem's domestic pages and a long tail of resellers, so it pays to confirm who actually runs the synthesis. Independent manufacturers such as Lone Star Peptide Co. tend to compete on speed and flexibility rather than regulatory filings.
Is American Peptide Co. Still in Business?
Yes. The brand operates under Bachem, and the Sunnyvale-era catalog has been folded into Bachem's U.S. commercial operations, which are headquartered in Torrance, California. Typing the old domain into a browser generally lands on Bachem product and service pages rather than a standalone storefront.
That consolidation creates confusion for newcomers. Forum threads that surface under american peptide company reddit frequently mix legitimate supplier reviews with anecdotal reports about unrelated vendors using similar names. Verify the legal entity, the facility address, and the certificate of analysis before you place an order.
Conferences and Community Information
Peptide science has a strong conference culture. Researchers tracking the next major meeting often search for american peptide conference 2026, which typically surfaces the biennial American Peptide Symposium along with regional and vendor-hosted events. These gatherings are a practical way to meet technical staff and compare capabilities in person.
Discount codes circulating online usually apply to consumer-facing supplement retailers, not to research-grade catalog items sold to institutions. Academic and bulk buyers normally negotiate pricing through a written quote instead.
Safety and Compliance Basics
Most peptides sold under this name are labeled for research use only. That designation means the material has not been evaluated by the FDA for human safety, efficacy, or dosing, and it should not be treated as a supplement or a treatment.
Any decision to use a peptide in a human context should be made with a licensed healthcare professional, and only with products that hold the appropriate regulatory status.
When evaluating any supplier, ask four questions:
- Does the certificate of analysis include HPLC purity and mass spectrometry data for the exact lot?
- Is the synthesis site disclosed and registered where required?
- Are storage, shipping, and cold-chain conditions documented?
- Does the vendor clearly separate research-grade and GMP-grade inventory?
The Bottom Line
American Peptide Co. is a legacy American peptide brand now operating inside Bachem, and it remains a recognized source for catalog, custom, and GMP peptides. Buyers who compare lead times, documentation, and facility transparency get better results than buyers who shop on price alone.
Frequently Asked Questions
Is American Peptide Company still in business?
Yes. American Peptide Company was acquired by Bachem in 2010, and the brand continues as part of Bachem's U.S. peptide business. Its legacy catalog and custom-synthesis services are now ordered through Bachem's U.S. commercial channels.
Are American Peptide Co. peptides FDA-approved for human use?
No. Most peptides sold under this brand carry a research-use-only designation, which means they have not been evaluated by the FDA for human safety, efficacy, or dosing. Anyone considering a peptide for a human health purpose should consult a licensed healthcare professional first.
Where is American Peptide Company located?
American Peptide Company was originally based in Sunnyvale, California, where it operated for nearly four decades. After the Bachem acquisition, U.S. operations were consolidated into Bachem's American facilities, which are headquartered in Torrance, California.
This page provides educational research information and does not replace medical advice, diagnosis, or treatment.