Appearance: White to light yellow solid, powder, or waxy form
Packaging: 10–1000 g, customizable
Storage Conditions: Keep sealed at -20°C

Product	End Groups	Molecular Weight / Da	Intrinsic Viscosity / dL/g (25°C, CHCl3)
mPEG-PCL	Methoxy & Hydroxyl	mPEG 400–10000 / PCL 1000–30000，customizable	0.1–3.0，customizable

mPEG-PCL (Methoxy Polyethylene Glycol–Polycaprolactone) is an amphiphilic block copolymer composed of hydrophilic mPEG and hydrophobic PCL. It can self-assemble into nanomicelles. Its excellent biocompatibility, controllable degradation, and mild nature make it widely used in both pharmaceutical and cosmetic fields, including:
Cosmetics & Skincare:
Active ingredient delivery、
Anti-aging serums
Moisturizing and repairing formulations
Barrier repair products
Functional additives for makeup
Pharmaceuticals & Biomaterials:
Drug-loaded microspheres for controlled release
Nanocarrier systems
Tissue engineering scaffolds
Other Research Uses:
Nanomaterial preparation
Functional biomaterial research

International Quality: Supports global regulatory filings and stable supply
Complete Range & Stable Quality: Various end groups, molecular weights, and intrinsic viscosities available
Customization: Molecular weight, block ratio, end groups, etc., can be tailored to specific actives or requirements
Product Development Support: In-house carriers have been used in multiple nanomedicine formulations, long-acting microspheres, implantable formulations, and medical devices; full support for R&D is available