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Someone tried taking a peptide called GHK‑Cu every day and posted about how they felt. For the first two weeks they noticed worse hair shedding and rougher skin. After about a month things seemed to improve, so they ordered more, but a week into the new batch they started feeling tired, foggy, and a bit like they had a cold. GHK‑Cu is a small molecule made of three amino acids that naturally occurs in our bodies and binds copper — people call it a “peptide” because it’s a short chain of those building blocks. Fans say it can help with skin repair, hair growth, and tissue healing. It’s not a drug like something prescribed by a doctor; it’s mostly sold as a supplement or research chemical and is often used topically on skin or taken in microdoses by people experimenting with anti‑aging or cosmetic benefits. What this post actually shows is a single person’s experience, not a clinical trial. Their first two weeks brought more hair shedding and worse skin, which they thought was a reaction to copper (they’d also been supplementing zinc). After about a month they reported improvements, but then after restarting a new batch they developed fatigue, brain fog, and cold-like symptoms. Anecdotes like this can hint at possible effects or interactions, but they don’t prove that GHK‑Cu caused the changes. There’s no information about dose, exact formulation, verification of the product, or other factors (illness, sleep, stress, other supplements) that could explain the symptoms. Why this matters to a regular person: a lot of people are trying peptides for skin and hair and assuming they’re harmless. Individual reports like this show that reactions can vary over time, and that someone might get worse before they get better—or that switching batches or combining supplements can cause new problems. If you’re thinking about trying something like GHK‑Cu because you’ve heard it helps skin or hair, these kinds of personal stories are a signal to be cautious and to track symptoms closely. Important caveats and risks: this is one person’s report, not scientific proof. GHK‑Cu is not regulated like a medicine, so product quality and dosing can vary a lot. Supplementing copper or zinc can change your body’s balance of those minerals and cause side effects; too much copper or too much zinc can both be harmful. People who are pregnant, breastfeeding, have liver disease, or take other medications should be especially cautious. If you get new or worrying symptoms, stop the product and talk to a healthcare professional who can check blood levels and other causes. Bottom line: interesting individual experience, not evidence — proceed carefully, verify products and doses, and consult a clinician if symptoms appear.
Source: r/Peptides