The degradation routes available to IGF-1 LR3 in water, and why lyophilisation shuts them

Published 26 October 2026 · REVIVE LAB UAE Research Desk · 5 min read
Every chemical degradation route for a protein needs molecular mobility and, for most, water as a reactant or medium. Oxidation of methionine 59 needs dissolved oxygen; deamidation needs water to hydrolyse the succinimide intermediate; disulfide scrambling needs a free thiol and solvent in which chains can move; aggregation needs chains to meet; adsorption needs a solution to be in contact with a surface. A lyophilised cake, dry and glassy, permits almost none of this. Dissolution opens all of them at once, which is why the pack holds the protein dry and the water apart.

The routes in solution

Oxidation at methionine 59, producing a less active sulfoxide. Deamidation at asparagine and glutamine residues, adding negative charge. Disulfide exchange, where one opened bond propagates mispairing to neighbours. Non-covalent aggregation near the isoelectric point. Loss to container walls at low concentration. Each is documented for IGF-1 and applies to the analogue.

Rates depend on pH, temperature, light, oxygen and concentration, and none is zero.

Why the solid resists

Lyophilisation removes the water that drives hydrolysis and leaves the chains in an amorphous glass with very low mobility. Oxygen can still reach the surface, which is why light protection and a sealed headspace matter even for the solid, but the overall rate falls by orders of magnitude. This is why the cake has a shelf life measured in years and the solution does not.

It is also why the reconstitution field on the pack page records only that water is included.

Boundary

This page states the chemistry that distinguishes the two states. It gives no time, temperature or procedure for any solution, because REVIVE LAB UAE provides none.

IGF-1 LR3 is supplied by REVIVE LAB UAE for laboratory research use only, with identity and purity documented for the batch. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.

What it costs

FormatStrengthPriceAvailability
IGF-1 LR3 Pack1 mgAED 650In stock

Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.

Frequently asked

The routes in solution?

Oxidation at methionine 59, producing a less active sulfoxide. Deamidation at asparagine and glutamine residues, adding negative charge. Disulfide exchange, where one opened bond propagates mispairing to neighbours. Non-covalent aggregation near the isoelectric point. Loss to container walls at low concentration. Each is documented for IGF-1 and applies to the analogue.

Does REVIVE LAB UAE provide dosing guidance?

No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.

How fast is delivery in the UAE?

Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.

IGF-1 LR3 Pack — in stock, dispatched from Dubai
HPLC-verified, lot certificate on every carton, 24-hour delivery nationwide. Browse the catalogue → All peptides UAE

Related reading

Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.