Photostability Assessment and Light Protection Strategies for Peptides

If needed, please add me on WhatsApp at +852 5487 8366 and I’ll send you our product price list.

photostability assessment evaluates peptide susceptibility to ultraviolet and visible light, identifying degradation pathways that require protection strategies. ICH Q1B guidelines prescribe light exposure conditions, measuring total light dose and spectral distribution. Photodegradation products are identified through LC-MS, often targeting tryptophan and tyrosine residues susceptible to photooxidation.

 Kinetic studies quantify photodegradation rates, enabling time-limited light exposure calculations. Protection strategies include amber glass and opaque primary packaging, minimising light transmission. UV absorbing coatings for secondary packaging provide additional protection. Antioxidant inclusion scavenges photo-generated reactive species, reducing oxidative damage. For liquid formulations, photostability studies include container orientation effects and headspace oxygen influences. For lyophilised products, solid-state photostability assesses light-induced colour changes and potency loss. Light-protected manufacturing and handling preserve product quality throughout production and distribution.