GHK-Cu Copper Peptide Serum

The Peptide That Actually Has the Research

GHK-Cu is a naturally occurring copper-binding tripeptide that has been studied in skin-care research for over forty years. Puren's Copper Peptide Serum delivers it in a clean, stabilized topical formulation — no fragrance, no dyes, no filler actives.

This is a cosmetic serum. It is designed to support the appearance of firmer, smoother, more even-toned skin when used consistently as part of a daily routine.

What's Inside

• GHK-Cu (Copper Tripeptide-1) — the hero ingredient, cosmetic grade
• Hyaluronic Acid — for surface hydration
• Niacinamide — for the appearance of evenness
• Glycerin — humectant
• Purified Water Base

No parabens. No sulfates. No synthetic fragrance. No dyes. No phthalates. Cruelty-free.

How To Use

Apply 2–3 drops to clean, dry skin morning and night. Gently press into face and neck before moisturizer. Avoid direct eye contact. For external use only.

What It Is NOT

GHK-Cu has become confusing online because an injectable compounded peptide version exists in a completely different category. This is not that. This is a topical cosmetic serum regulated under 21 CFR Part 700 — the same framework as every other skincare serum on your shelf. Nothing in this bottle is intended to diagnose, treat, cure, or prevent any disease.

Third-Party Tested

Every batch is tested for identity, purity, heavy metals, and microbial contamination by an independent lab. Download the Certificate of Analysis (PDF)

FAQ

Q: Is this the same as injectable GHK-Cu?
A: No. This is a topical skincare serum. It is a cosmetic product under FDA 21 CFR Part 700, not a compounded injectable drug.

Q: When will I see results?
A: Skincare results vary. Most users report visible differences after 4–8 weeks of twice-daily use.

Q: Is it safe for sensitive skin?
A: The formula is fragrance-free and dye-free. We recommend a 24-hour patch test before first facial use.

These statements have not been evaluated by the FDA. This product is a cosmetic and is not intended to diagnose, treat, cure, or prevent any disease.