Isomers Wrinkle Viper for Expression Lines 1.01 fl oz Anyone with frown, expression lines. All ages, all skin types. Why is it unique/different? Wrinkle Viper serum, which combines Syn’ake, a lab created di-peptide inspired by snake venom, with Argireline, acetyl hexapeptide-8, to give expression lines a combined wrinkle fighting formulation. Successful wrinkle relief needs a multi-faceted approach. Wrinkle Viper achieves this.