i bought a Dr. Perricone product...and it came with a free sample of Cold Plasma. Enough for maybe 2 uses. I don't put things on my face that readily, just not trusting. I tried the Cold Plasma on my hands and arms. It does have a fishy smell, from DHA from salmon. The active ingredient is supposed to be phosphatadylcholine, (sp?) . It has peptides in it, and glycolic acid. For $150 for a very small jar, I don't think so.