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Mild side effects may include redness, swelling or light bruising at the injection site

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Many people notice an energy lift within hours, but its best to monitor how you feel and communicate with your provider if you have any concerns

News provided by Neurogan Health Apr 28, 2026, 10:06 ET While competitors fill bottles with 30 ingredients, customers using Neurogan's two-ingredient copper peptide serum are reporting visible hair changes and asking why no one did this sooner SAN DIEGO, April 28, 2026 /PRNewswire/ -- Neurogan Health set out to answer a simple question: how many ingredients does a hair serum actually need

The effect of tripeptide-copper complex on human hair growth in vitro Pyo HK et al., 2007 PubMed Stimulation of hair growth by peptide copper complexes US Patent 5538945 Copper peptides are not straightforward ingredients