Do peptides have a scent or color?

Yes, peptides have a natural odor.  The amino acids that make up the peptide sequence also have a distinctive scent.  These characteristic smells can increase with exposure to environmental conditions such as light, heat, or other products.  Although still effective, these peptides can carry a more potent scent or slight color variation.  It is important to keep your peptides away from extreme conditions such as a hot vehicle.