Peptide education
Oligopeptide-1
Oligopeptide-1 is an unprefixed cosmetic ingredient name. Ingredient references describe a synthetic peptide made from glycine, histidine, and lysine, distinct from human epidermal growth factor.
Studies of an EGF serum and combined facial treatments do not establish what the unprefixed ingredient does on its own. The exact ingredient and formulation matter when comparing products with research.
Overview
Quick answer
Sh-oligopeptide-1 is a separate ingredient name for an EGF-related peptide made by bacterial fermentation using a synthetic gene. A study that calls a serum recombinant EGF and also uses the shorter name does not establish that it tested the unprefixed ingredient.
Is this the same as sh-oligopeptide-1?
No. The unprefixed name describes a peptide made from glycine, histidine, and lysine. The sh-prefixed entry describes a recombinant human EGF-related peptide produced by bacterial fermentation.
Do these facial studies show it works?
No. One paper describes a recombinant epidermal growth factor serum; another studied skin-care regimens alongside injectable procedures. Neither establishes an effect of the unprefixed ingredient alone.
Is it the same as copper tripeptide-1?
Copper tripeptide-1 is a copper complex of Gly-His-Lys. The unprefixed ingredient description names the same three amino-acid types but does not specify one exact sequence. Do not assume the products are identical.
Evidence
Evidence snapshot
A regulator distinguishes the unprefixed ingredient from human EGF.
In 20 women, ratings for improvement in texture and firmness favored a recombinant EGF serum at later visits over a conditioned-media serum. The paper does not establish that it tested the unprefixed ingredient.
A defined tripeptide and its copper complex were studied in cultured cells.
Claims
Common claims vs evidence
| Claim | Human evidence | Mechanistic evidence | Verdict |
|---|---|---|---|
| Oligopeptide-1 is the same ingredient as EGF. | The serum study describes recombinant EGF, not a verified unprefixed ingredient. | Ingredient references distinguish the unprefixed and sh-prefixed names. | The names and study results should not be merged. |
| The ingredient has a proven independent effect on facial skin. | One study compared EGF serums; the other combined skin care with injections. | Neither study establishes an effect of the unprefixed ingredient on its own. |
Bottom line
Main takeaway
The sh prefix changes which ingredient is being described.
Confirm sequence, copper status, and formulation before applying a study result.
Identity
What it is
The unprefixed ingredient is described as a synthetic peptide made from glycine, histidine, and lysine. These descriptions do not specify one exact sequence for every product using the name.
The sh-prefixed entry describes a recombinant human peptide made by bacterial fermentation using a synthetic EGF gene, with up to 53 amino acids.
Research
Research evidence
In a small trial, ratings for improvement in texture and firmness favored an EGF serum at later visits over a human-cell-conditioned-media serum, while wrinkle ratings changed little in both groups. A separate study reported improvement in both groups using skin care alongside filler and a botulinum toxin. Neither study isolates the unprefixed ingredient, and the EGF paper does not establish that its shorter ingredient name matches the unprefixed entry.
| Study / evidence area | Population | Design | Product context | Main outcome | Limitations | Weight |
|---|---|---|---|---|---|---|
| Recombinant EGF serum comparison | Twenty women aged 50 to 65 with facial photoaging | Randomized, double-blind comparison of two serums over 12 weeks | Recombinant EGF serum compared with a human-fibroblast-conditioned-media serum. Both groups also used a cleanser and sunscreen. | Investigator ratings favored the recombinant EGF serum for texture and firmness at later visits; overall wrinkle ratings changed little in both groups. | Small, short study of finished serums, not an isolated ingredient. The paper uses the shorter name but does not verify that it matches the unprefixed ingredient. The maker of one serum supported the study; the authors report that the funder had no role in its design, data collection, analysis, interpretation, or publication decision. | Preliminary comparison of two EGF-related formulations |
| Facial skin-care regimens with injections | Twenty people receiving facial rejuvenation treatments | Comparison of two skin-care regimens alongside filler and botulinum toxin | Both groups received hyaluronic acid filler and abobotulinumtoxinA; one regimen also included chemical peels and antioxidant formulations. | Both groups improved on selected skin-quality and wrinkle assessments, as well as self-esteem and first-impression measures. | Several treatments were combined, and the abstract does not identify an isolated unprefixed Oligopeptide-1 intervention. PubMed lists PCA Skin as a funding source. | Multi-treatment comparison, not an ingredient-specific result |
Use context
Reported use context
The serum trial describes a routine for the EGF formulation it tested, not a regimen established for unprefixed Oligopeptide-1.
Study and label context
Participants applied their assigned serum to the face twice daily for 12 weeks. Both groups also used a cleanser and sunscreen.
This describes the study products, not a recommendation or evidence for the unprefixed ingredient.Cautions
Safety and unknowns
- The cited studies do not establish long-term safety for a specific finished product containing the unprefixed ingredient.
- Other ingredients, concentration, and the condition of the skin may affect a product's tolerability.
Product quality
Product identity and quality
Similar ingredient names do not by themselves establish that two products contain the same peptide.
Full ingredient name
The sh prefix identifies a different ingredient entry.
Sequence and copper status
A tripeptide, a copper complex, and an EGF preparation should not be assumed equivalent.
Complete formulation
Other ingredients and the amount of active material affect comparisons between products.
Mechanism
How it is proposed to work
A laboratory study tested Gly-His-Lys, a peptide made from the same three amino-acid types, in cultured human skin fibroblasts. It did not test a finished product identified as Oligopeptide-1.
Gly-His-Lys, its copper complex, and copper ions each reduced IGF-2-stimulated TGF-beta1 secretion in cultured fibroblasts. Cell measurements do not establish a clinical effect or the identity of a commercial product.
Details
Technical details
Sources
References
- 1.
Beijing Medical Products Administration. Cosmetics supervision questions and answers: oligopeptide-1 and epidermal growth factor
The regulator distinguishes an unprefixed peptide made from glycine, histidine, and lysine from human epidermal growth factor.
- 2.
Korea Cosmetic Association. Oligopeptide-1 ingredient dictionary entry
The unprefixed entry describes a synthetic peptide made from glycine, histidine, and lysine residues; it does not give one exact sequence.
- 3.
Korea Cosmetic Association. sh-Oligopeptide-1 ingredient dictionary entry
The sh-prefixed entry describes an E. coli-produced recombinant human peptide made using a synthetic gene for epidermal growth factor.
- 4.
PMID:25745767
Laboratory experiments compared GHK, its copper complex, and copper ions in cultured human fibroblasts; the study did not test a finished product labeled Oligopeptide-1.
- 5.
PubChem. Prezatide copper compound record
The compound record identifies copper tripeptide-1 as a copper complex of Gly-His-Lys.
- 6.
doi:10.1111/jocd.70927 PMID:42152512
The paper calls its serum recombinant epidermal growth factor and also uses the name oligopeptide-1. It does not establish that the serum contains the unprefixed ingredient described by the regulator. The study was supported by DRMTLGY; the authors report that the funder had no role in study design, data collection, analysis, interpretation, or the decision to publish.
- 7.
PubMed. Topical skin therapies in subjects undergoing full facial rejuvenation
doi:10.1111/jocd.12977 PMID:31033162
The study combined skin-care regimens with injectable procedures; its abstract does not identify an isolated unprefixed Oligopeptide-1 intervention. PubMed lists PCA Skin as a funding source.
- 8.
FDA. Cosmetic Ingredients
FDA describes the US cosmetic ingredient framework and manufacturers' safety responsibilities.