If you are synthesizing long, complex or highly hydrophobic peptides, we highly recommend using ChemMatrix resins.
This 100% PEG resin has demonstrated tremendous increase in purity and yield over polystyrene for these difficult peptides.
For peptide acid, we recommend the use of the HMPB-ChemMatrix resin
For peptide amide, we recommend the use of the PAL-ChemMatrix resin