
The downside of these products is their price. Bloody expensive. $52.00 U.S. for the Green Ice and a whopping $75.00 for the hydrating serum.
More about peptides: Actually, there are two uses of peptides in skin care products. Palmitoyl pentapeptide (Matrixyl), which is the collagen booster one. Sometimes these have copper attached, which seems to enhance the action and also have an anti-oxident effect. The other is a neuro-peptide (argireline), which depresses the release of neurotransmitters from nerves and keeps the muscle from contracting - like Botox. From what I've read, there's scant proof they work at all when applied topically, especially the neuro-peptides.