Skip to content
WELCOME10 — 10% OFF YOUR FIRST ORDER  ·  FREE SHIPPING OVER $300 CAD  ·  COA ON EVERY ORDER
Research Comparison

IGF-1 vs MOTS-C

IGF-1 and MOTS-C are studied in overlapping research areas, which is why they are frequently compared. This is a neutral side-by-side reference drawn from published preclinical literature and laboratory handling data.

Shared research areas:Metabolic
Class70-residue single-chain protein (native IGF-1), three disulfide bondsMitochondrial-derived peptide, 16 residues
Molecular weight7648.7 g/mol2174.5 g/mol
CAS numberNot assigned / not specifiedNot assigned / not specified
Purity spec≥99%≥98%
Research areasHormonal & Endocrine, Musculoskeletal, MetabolicMetabolic, Cellular Longevity
Primary diluentDilute acetic acid for initial dissolutionSterile or bacteriostatic water
Working windowShort — days rather than weeks — and shorter still with repeated handling.Commonly worked with for 2–3 weeks at 2–8 °C.
Lead degradation routeMisfolding and irreversible denaturation — the dominant failure mode.Methionine oxidation to the sulfoxide (+16 Da), and MOTS-c carries methionine at the N-terminus and internally.
Freeze–thawPoorly tolerant. Repeated freeze-thaw denatures the folded structure permanently, so aliquot for single use rather than relying on any freeze tolerance.Aliquot on reconstitution. Each vial opening introduces oxygen that acts on two susceptible residue types at once.
Light sensitivityNo specific light requirement beyond normal practice.Protect from light throughout — tryptophan photo-oxidation applies here as it does to DSIP.

How they actually differ

Comparing the two: IGF-1 is 70-residue single-chain protein (native igf-1), three disulfide bonds, while MOTS-C is mitochondrial-derived peptide, 16 residues — different molecular classes with different handling consequences; they call for different primary diluents (dilute acetic acid for initial dissolution versus sterile or bacteriostatic water); their leading degradation routes differ (misfolding and irreversible denaturation for IGF-1, methionine oxidation to the sulfoxide (+16 da), and mots-c carries methionine at the n-terminus and internally. for MOTS-C), so the storage precautions that matter are not the same; their practical working windows differ once reconstituted. The sections below set out each in full.

IGF-1 — origin

IGF-1 is the native insulin-like growth factor — a folded 70-amino-acid protein stabilised by three internal disulfide bonds. It is the downstream messenger produced after growth hormone acts, and it is handled as a protein rather than a short peptide. This is the native sequence, distinct from the long-acting LR3 analogue.

MOTS-C — origin

MOTS-c is encoded not in nuclear DNA but within the mitochondrial genome — specifically an open reading frame inside the 12S ribosomal RNA gene. Its discovery helped establish that mitochondria encode short signalling peptides that act on the rest of the cell, a genuinely recent addition to cell biology and the reason the compound attracted rapid research interest.

IGF-1 research themes

IGF-1 receptor signalling

Studied as the native ligand for the IGF-1 receptor and its downstream proliferation and survival pathways.

Satellite cell activation

Examined in muscle research models for its role in satellite-cell behaviour and anabolic signalling.

Native versus analogue

Compared with IGF-1 LR3, whose reduced binding-protein affinity gives a longer active window — a contrast studied directly in the literature.

MOTS-C research themes

Mitochondrial-derived signalling

Part of a novel class demonstrating that mitochondria encode peptides acting systemically.

AMPK pathway

The most-studied signalling interaction, examined in metabolic and exercise models.

Insulin sensitivity

Investigated in glucose-metabolism research models.

Exercise and longevity biology

Studies have examined MOTS-c expression in relation to physical activity and ageing in animal models.

IGF-1 handling

  • Dissolve first in dilute acetic acid, then dilute into the working buffer — never expect plain water to take it up fully.
  • Use a carrier protein and low-bind labware to prevent adsorptive loss.
  • Aliquot for single use; do not re-freeze reconstituted protein.

MOTS-C handling

  • Use amber vials or wrap in foil; treat light protection as mandatory rather than precautionary.
  • Minimise vial openings — headspace oxygen is the practical driver of oxidation.
  • Use low-bind labware for dilute working solutions.

Both third-party tested

Every Popular Peptides batch of IGF-1 and MOTS-C is independently tested by HPLC and LC-MS with a published Certificate of Analysis. Enter a lot number to pull the COA for a specific vial.

Verify a batchPublished COAsHow we test

IGF-1 reference

Full IGF-1 reference IGF-1 storage IGF-1 reconstitution IGF-1 calculatorIGF-1 product details

MOTS-C reference

Full MOTS-C reference MOTS-C storage MOTS-C reconstitution MOTS-C calculatorMOTS-C product details

Related comparisons

5-Amino-1MQ vs IGF-15-Amino-1MQ vs MOTS-CCJC-1295 (No DAC) vs IGF-1CJC-1295 (No DAC) vs MOTS-CCJC-1295 + Ipamorelin vs IGF-1CJC-1295 + Ipamorelin vs MOTS-CDSIP vs MOTS-CEpitalon vs MOTS-C

IGF-1 and MOTS-C are supplied strictly as research chemicals for in-vitro laboratory and research use only. They are not intended for human or animal consumption, diagnostic, or therapeutic use. This comparison summarizes published preclinical literature and laboratory handling data; it is not medical advice, not a claim of efficacy, and not usage guidance.