PEG-8 caprylic/capric glycerides is found in Labrasol® a pharmaceutical product.

It has been used subcutaneously in the study of bioactivity in laboratory animals (1).

Experimented in microemulsions with ethanolic propolis extracts for skin protection (2).

References______________________________________________________________

(1) Al-Kurdi ZI, Chowdhry BZ, Leharne SA, Qinna NA, Al Omari MM, Badwan AA. Influence of glucosamine on the bioactivity of insulin delivered subcutaneously and in an oral nanodelivery system. Drug Des Devel Ther. 2015 Nov 19;9:6167-76. doi: 10.2147/DDDT.S91974. 

(2) Žilius M, Ramanauskienė K, Juškaitė V, Briedis V. Formulation of Propolis Phenolic Acids Containing Microemulsions and Their Biopharmaceutical Characterization. Evid Based Complement Alternat Med. 2016;2016:8175265. doi: 10.1155/2016/8175265.