I've used several Arcona products. Some I found very good. Some were just so-so. The peptide wielding one I liked best is the Peptide Hydrating Complex. Besides the peptides, it also has a tiny bit of retinol in there, which in any quantity is very irritating. The other I tried and liked is the Magic Green Ice. Go for the hydrating complex if you have dry skin and Magic Green Ice if you have oily skin or want to use the solution under your regular moisturizer. 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.
