Successful research studies demand the highest quality peptides

Optimum Peptides employs industry leading methods to synthesize, purify, and characterize every protein and peptide we produce.

Our state of the art facilities located in Southern California are owned and operated by US-educated, PHD-holding biochemists.


Our Difference

Each peptide undergoes mass spectrometry analysis to verify molecular weight and amino acid analysis to verify composition. We can synthesize quantities from several milligrams to hundreds of grams in purities of up to 99%

⇒ Mass Spectrometry

⇒ Highest Quality Control

⇒ HPLC Purification

Our Philosophy

Optimum Peptide’s guiding philosophy is to make the highest quality research grade peptides in the marketplace, at the best possible price, while providing superior levels of customer service

USA Proud

  • ALL Peptides Made in the USA
  • ALL Chemicals Source in the USA
  • ALL Facilities in the USA

Our Peptides
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 We offer a wide variety of the Best Online Peptides available!

High Quality GHRP6 from Optimum Peptides
GHRP-2 is a common research peptide for those who purchase peptides online.
4X Peptide Blend Option so you don't need to purchase peptides separately.
This 2X Peptide Blend is certainly one of the elite peptides on the research market.
Highest purity bremelanotide and Pt 141 for Sale.
HGH Frag or Human Growth Hormone Fragment 176-191 for Research
Mechano Growth Formula (MGF) is one of the elite peptides on the research market.
The research peptide Melanotan 2 for sale.
IGF-1 LR3 results in long lasting insulin-like growth factor.
Tesamorelin is a growth hormone release hormone.
CJC-1295 with DAC
BPC 157 is often referred to as the Healing Peptide.
TB-500 is a synthetic fraction of Thymosin Beta 4.
GLP-1 is the short name for glucagon-like peptide 1, one of the elite peptides.
Ipamorelin is very popular and one of the most extreme peptides

We are constantly working to bring new research peptides to market.

Quality Control

We strive to be more than just a peptide supplier and our commitment to delivering the highest quality reagents at the best prices with superior customer service is the reason we stand above the competition.


Private, Safe, Secure.  All information regarding custom peptide synthesis projects is controlled by the client and confidential into perpetuity.


We know that in order to achieve the highest quality results in your research, you demand the highest quality peptides on the market.


Simple and efficient ordering from your computer or mobile device. No sign-up required. For custom peptides and wholesale inquiries please contact us.

Recent Additions

The process of ensuring we have the best quality inventory to purchase Peptides online is not a short one. We are continuously expanding our catalog with peptides that simply cannot be found anywhere else. Check back here regularly to see what exciting new products are bringing to the research market.