-25% on everything – until October 31Free shipping on orders of $99 or more
Prime Peptides

Product Usage: This product is intended for research purposes only.

All product information available on this website is for educational purposes only. Any form of bodily introduction into humans or animals is strictly prohibited by law. This product should only be handled by licensed and qualified professionals. It is not a drug, food, or cosmetic, and must not be misbranded, misused, or mislabeled as such.

IGF-1 DES 1 mg

IGF-1 DES (Des(1-3)IGF-1) is a naturally occurring, endogenous truncated form of IGF-1 lacking the first three N-terminal amino acids.

$55.95 – $559.50

Same Trusted Formula. Fresh New Look.

During our packaging transition, you may receive products with either our previous or updated label. Rest assured, the formulation, purity and quality remain exactly the same as per our standards.

Accepted Payment Methods
  • Credit card
  • Bank transfer (instant SEPA)
  • Bank transfer (ACH)
  • Wise
  • Revolut
  • Zelle
  • Remitly
  • Western Union
  • Chime
  • Others

-25% on everything – until October 31
25% off regular prices, replacing other product sales. Only the crypto payment discount can be combined.

Shipping

Same-day shipping on USA orders placed before 12PM EST.

View Shipping Policy →
Returns

30-day hassle-free returns on unopened products.

View Returns Policy →
Lab Tested

Every batch is tested for purity, potency and quality.

View Lab Results →
Support

Have a question? Chat with us on Telegram.

Open the chat →

IGF-1 DES (Des(1-3)IGF-1) is a naturally occurring, endogenous truncated form of IGF-1 lacking the first three N-terminal amino acids. This truncation reduces IGFBP affinity by approximately 10-fold relative to native IGF-1 while modestly increasing IGF-1 receptor binding potency.

The shorter half-life and higher local potency of IGF-1 DES make it a useful research tool for studying IGF-1R activation dynamics distinct from the longer-acting IGF-1 LR3 analogue.

  • High Purity – 99% Purity Guaranteed
  • Independently Lab Tested
  • Research Grade Quality
  • For Laboratory Research Use Only
All Prime Peptides products are independently third-party tested at a USA-based HPLC-licensed laboratory prior to distribution. Certificates of Analysis (COA) are published on the Independent Test Results page and available at product level. If any independently conducted HPLC test returns a negative result, Prime Peptides will refund: (1) the cost of the HPLC test, and (2) the full order amount including shipping.
Chemical Formula C319H501N91O96S7
Synonyms IGF1 Human Des1-3; Insulin-Like Growth Factor 1 Des (1-3) Human Recombinant; Somatomedin C; IGF-I; IGFI; IGF1; IGF-IA; Des(1-3); Des1-3; Des 1-3; Des (1-3); IGF-1 (4-70); IGF1 Des1-3
Molar Mass 7,649 g/mol
CAS Number 112603-35-7
Total Compound Content 1 mg per vial
Shelf Life 36 months
IGF-1 DES is a truncated analogue of insulin-like growth factor 1 (IGF-1) in which the three N-terminal amino acids are absent relative to the full-length peptide. This structural modification alters its interaction profile with insulin-like growth factor binding proteins (IGFBPs), resulting in a greater proportion of unbound peptide available for receptor interaction. IGF-1 DES retains high-affinity binding to the insulin-like growth factor 1 receptor (IGF-1R) and preserves activation of downstream receptor-mediated signaling pathways, including PI3K/Akt/mTOR and MAPK/ERK cascades. The modified structure and distinct receptor-accessibility profile make IGF-1 DES a valuable research tool for investigating IGF-1R pharmacology, ligand-receptor interactions, growth factor signaling mechanisms, and comparative studies of IGF-1 analogues. Supplied as a lyophilized preparation (1 mg/vial). Independently third-party HPLC-tested; COA available per batch.

Every batch is independently lab tested for identity, purity and potency. View our lab testing program →

How does IGF-1 DES differ from IGF-1 LR3 in terms of receptor interaction characteristics?

IGF-1 DES and IGF-1 LR3 are structurally modified forms of IGF-1 that differ in their interactions with insulin-like growth factor binding proteins (IGFBPs) and their resulting receptor-accessibility profiles. IGF-1 DES utilizes N-terminal truncation, whereas IGF-1 LR3 incorporates amino acid substitution and sequence extension.

These structural differences make both compounds useful research tools for investigating IGFBP interactions, ligand-receptor dynamics, and comparative IGF-1 receptor pharmacology.

What distinguishes IGF-1 DES from full-length IGF-1?

IGF-1 DES is a truncated analogue of IGF-1 in which the N-terminal region has been modified relative to the full-length peptide. This structural change alters its interaction characteristics while preserving high-affinity binding to the insulin-like growth factor 1 receptor (IGF-1R).

As a result, IGF-1 DES is frequently used in studies examining structure-function relationships, receptor activation mechanisms, and the influence of peptide architecture on growth factor signaling pathways.

Why is IGF-1 DES useful for growth factor signaling research?

IGF-1 DES retains activation of key IGF-1R-mediated signaling pathways, including PI3K/Akt/mTOR and MAPK/ERK regulatory cascades. Its modified structure and distinct interaction profile make it a valuable research tool for investigating ligand-receptor interactions, growth factor signaling mechanisms, receptor pharmacology, and comparative studies of IGF-1 analogues and related signaling systems.

Customer Reviews (10)

★★★★★ ★★★★★
5 / 5
5★
10
4★
0
3★
0
2★
0
1★
0
★★★★★ ★★★★★
Verified Buyer
Edwardo

You guys are great! Thanks!

★★★★★ ★★★★★
Verified Buyer
Kristofor H.

This co has a great customer service and great DES. I will be ordering again. Tnx!

★★★★★ ★★★★★
Verified Buyer
Vasil A.

Great Product! Good Price! Fast Delivery! Doesn't get any better.

★★★★★ ★★★★★
Verified Buyer
Dona

I had a query relating to the delivery of the item. My question was answered within minutes with a very helpful response. The item were very carefully packaged and neatly arranged. Will definately be using IGF-1 DES 1MG again.

★★★★★ ★★★★★
Verified Buyer
Martin R.

Very happy with the product