When exploring the world of advanced cosmetic ingredients, one name that frequently appears in discussions regarding skin conditioning is Oligopeptide-5. As an enthusiast who keeps a close eye on the latest developments in topical formulations, I have spent significant time researching the technical specifications, including the elusive CAS Number associated with various peptide structures.
Defining the Entity: What is Oligopeptide-5?
At its core, Oligopeptide-5 is a synthetic, 73-amino aci Dec 6, 2025 — SpecPed® O54P is a biologically active peptide. It can stimulate hair follicles, promote hair growth and improve hair loss. d peptide. This complex molecule is engineered to mimic biological processes, specifically acting as a signaling agent. They signal to the body to activate the endogenous repair mechanism of the skin, which is why it has become such an advanced ingredient used in cosmetology.
Unlike simple chains, this specific structure is designed for precision. It is often compared to othe Aug 13, 2012 — (also known as palmitoyl tripeptide-5) and CAS No. 171263-26-6 is 5 Palmitoyl oligopeptide consists of a short chain of 3 amino r signaling molecules like Oligopeptide-10 or the well-known Oligopeptide-1 (which carries the CAS Number: 62253-63-8). While there are various forms, such as the recombinant sh-Oligopeptide-5 produced via *E. coli* fermentation, the synthetic version remains a staple fo EWG Skin Deep® | What is OLIGOPEPTIDE-5 r those looking to support their skin’s structural integrity.
Navigating the CAS Number Confusion
For those of us tracking these ingredients, the CAS (Chemical Abstracts Service) registry is essential for identification. You will often see different identifiers, such as CAS #: NA for specific salts or CAS 110615-47-9 in some industry listings. It is important to note that Oligopeptide-5 i Jul 26, 2021 — CAS Number: Chem/IUPAC Name: Oligopeptide-5 is a synthetic 73 amino acid peptide consisting of alanine, arginine, aspartic acid, s distinct from other popular chains like those found in SpecPed® O54P or o Dec 30, 2025 — Oligopeptide-50 is a synthetic multifunctional peptide known under the trade name CG-Glamerin that is included in the list of “Gold Standard” ther Oligopeptides categorized by their specific sequence length (usually 2 to 20 amino acids, though Oligopeptide-5 is a larger 73-amino acid chain).
In my experience, verifying the CAS No is the best way to ensure the purity and quality of the raw material. For instance, while CAS No. 1018685-16-9 relates to other repair peptides, and CAS NO. 1374396-34-5 refers to different variants, the focus remains on the specific sequence functionality of 5.
Functional Benefits and Personal Observations
In my rou Oligopeptide-1 can promote cell proliferation and differentiation, thereby replacing aging cells and dead cells with new cells. It has a strong mitogenic effect tine, I look for ingredients that offer tangible support for skin texture. Oligopeptide-5 is specifically noted for stimulating the synthesis of fibronectin, a glycoprotein that plays a vital role in the dermal matrix. By supporting this, it helps in maintaining a healthy appearance.
Many users report that it promotes a youthful glow by improving skin's overall luminosity. It is not just about aesthetics; it is about the conditioning properties. Similar to how a peptide complex utilized in skincare works, this ingredient acts as a targeted conditioner. It is quite different from Sh-Oligopeptide-1, which is a peptide found naturally in our bodies and functions primarily through cell signaling for proliferation.
Why Quality Matters
When sourcing or reviewing products containing OLIGOPEPTIDE-5, I always prioritize transparency in labeling. Because it is a sophisticated molecule, its efficacy depends heavily on the delivery system and the concentration used. Whether you Catalogue #: AR-P29887 ; CAS #: NA ; Alternate CAS #: 1029806-76-5 ; Molecular Formula: C₃₅H₅₆N₁₂O₁₄; CF₃CO₂H ; Molecular weight: 868.90; 2(114.02). are comparing it to Palmitoyl Tripeptide-5 (often associated with CAS No. 171263-26-6) or looking for general hydration help, the key is the consistency of the peptide sequence.
Oligopeptide-5 stands out as a specialized tool for those focused on long-term skin maintenance. Whether it is used for its ability to enhance skin hydration and repair or its role in sophisticated cosmetic matrices, it remains a fascinating subject for anyone interested in the chemistry of beauty. As the industry evolves, keeping track of these specific identifiers ensures that you are always informed about exactly what you are putting on your skin, moving beyond marketing claims to understand the actual science of the Oligopeptide family.