This study investigated using polyethylene glycol (PEG) as a cross-linking agent for protein extracts from rat dermal tissue to create a hydrogel with controllable properties for tissue engineering applications. Hydrogels with 1:1 ratios of PEGylated dermal extract and 2-5% PEGDA of molecular weights 3.4kDa and 20kDa were evaluated based on their ability to gel and swelling ratio. The results showed that 3% PEGDA with 3.4kDa molecular weight formed gels and had the highest swelling ratios, indicating it was the least cross-linked. The point of gel formation was determined to be 3% for 3.4kDa PEGDA and 4% for 20