Search “kisspeptin” online and you will find studies on reproductive hormones, sexual behavior, fertility and neuroendocrine signaling.
But there is one important sourcing problem:
Not every “kisspeptin” study used Kisspeptin-10.
For professional B2B buyers, distinguishing Kisspeptin-10 (KP-10) from longer kisspeptin forms such as Kisspeptin-54 (KP-54) matters when evaluating literature, analytical specifications and product identity.
What Is Kisspeptin-10?
Kisspeptin-10, also known as KP-10, Human Metastin 45-54 and Metastin 45-54, is a ten-amino-acid peptide corresponding to the C-terminal active sequence of human kisspeptin.
Its sequence is:
YNWNSFGLRF
Common identifiers include:
CAS: 374675-21-5
Molecular Formula: C63H83N17O14
Molecular Weight: 1302.4 g/mol
Kisspeptin-10 is widely studied in research involving KISS1R/GPR54 signaling, GnRH biology, LH and FSH secretion and the hypothalamic-pituitary-gonadal axis.
Kisspeptin-10 Is Not Kisspeptin-54
This distinction matters more than it may appear.
Kisspeptin-10 and Kisspeptin-54 belong to the same biological signaling system, but they are different-length peptide forms.
That means research using KP-54 should not automatically be presented as though the exact experimental material were KP-10.
For example, some well-known human studies investigating sexual-brain processing and sexual desire used Kisspeptin-54 rather than Kisspeptin-10.
Professional researchers should therefore ask:
Which kisspeptin isoform was actually used in the study being cited?
KP-10 Has Its Own Human Research Record
Kisspeptin-10 itself has been investigated in human endocrine physiology.
Controlled studies have examined its effects on LH pulse frequency, gonadotropin secretion and testosterone-related endocrine signaling.
More recent research has also explored longer-duration KP-10 administration and whether gonadotropin responses can be maintained over time.
These studies are scientifically relevant—but they should be interpreted according to their actual populations, experimental protocols and molecular form.
Research evidence for KP-10 should not be mixed indiscriminately with evidence generated using KP-54.
Why Molecular Identity Matters in B2B Sourcing
A vial labeled “Kisspeptin” is not enough information for a professional laboratory.
Buyers should verify:
Sequence
Is the supplied peptide actually the KP-10 sequence YNWNSFGLRF?
Peptide length
Is the material the 10-amino-acid fragment rather than KP-54 or another kisspeptin form?
CAS and molecular specification
Do the CAS number, formula and molecular mass correspond to Kisspeptin-10?
Analytical identity
Does appropriate MS or LC-MS data support the expected molecular identity?
Batch-specific purity
Does the HPLC chromatogram correspond to the actual production lot?
Why ≥99% HPLC Is Not the Whole Specification
A ≥99% HPLC purity claim provides useful information about chromatographic purity.
But purity alone does not establish:
- correct peptide sequence;
- correct isoform;
- expected molecular mass;
- absence of important peptide-related impurities;
- aggregation status;
- consistency between the COA and supplied lot.
This is why professional sourcing should separate:
Isoform → Sequence → Identity → Purity → Batch Traceability
What Do Kisspeptin-10 Reviews Say?
Online experiences are mixed.
Positive discussions sometimes describe perceived changes in:
- libido;
- sexual sensation;
- arousal;
- general well-being.
Negative reports include:
- no noticeable effect;
- mood changes;
- heart-palpitations reports;
- swelling or edema;
- other unwanted subjective effects.
These reports are anecdotal.
The actual peptide identity, purity, source, concurrent medications and underlying health conditions are usually unknown.
Online reviews cannot establish the safety, efficacy or quality of a particular Kisspeptin-10 research batch.
Kisspeptin-10 Research Peptide from Sunone
Sunone (Hong Kong) Biopharmaceutical International Technology Co., Limited supplies Kisspeptin-10 for qualified laboratory research and biotechnology manufacturing applications.
Current listed product information includes:
Product: Kisspeptin-10 (Human)
Synonyms: KP-10 / Human Metastin 45-54 / Metastin 45-54
CAS: 374675-21-5
Sequence: YNWNSFGLRF
Molecular Formula: C63H83N17O14
Molecular Weight: 1302.4 g/mol
Grade: Research Grade
Purity Specification: ≥99% HPLC
Form: Lyophilized Powder
Storage: 2–8°C, protected from light
Documentation: COA, SDS and Specification Sheet available
Current B2B configurations include 5 mg × 10 vials and 10 mg × 10 vials, subject to project requirements and availability.
Looking for a Kisspeptin-10 supplier with clear sequence identity and batch-specific analytical documentation?
View Sunone Kisspeptin-10 Specifications：
Send Sunone your required quantity, analytical-documentation requirements, vial format and OEM/ODM needs for a current B2B quotation.
FAQ
Is Kisspeptin-10 the same as Kisspeptin-54?
No. They belong to the same kisspeptin signaling family but differ in peptide length and molecular identity.
What is the sequence of Kisspeptin-10?
Human Kisspeptin-10 is commonly represented as:
YNWNSFGLRF
What is Human Metastin 45-54?
Human Metastin 45-54 is another name used for Kisspeptin-10.
Does research on Kisspeptin-54 automatically apply to KP-10?
No. Results should be interpreted according to the exact peptide form, population and experimental design used in each study.
Does ≥99% HPLC prove KP-10 identity?
Not by itself. HPLC purity and molecular identity are separate analytical questions.
What should buyers request from a Kisspeptin-10 supplier?
Depending on the intended research application, buyers may consider requesting a batch-specific COA, HPLC chromatogram, suitable MS/LC-MS identity data, exact peptide sequence, impurity information, SDS and lot traceability.
This content is provided for scientific and educational purposes only. SUNONE research peptide is for qualified labrtorynt, diagnois, druc tor mmatct or veteimant, use.research only, Not for human consumption, clinical treame. Purchasers are responsible for complying with applicable laws and regulations in their jurisdiction.
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