PREPAKU Copper Peptide Serum GHK-Cu & AHK-Cu 1 oz – Lightweight, Fast-Absorbing

PREPAKU GHK-Cu & AHK-Cu Copper Peptide Serum is a lightweight, non-greasy 1 oz topical serum combining 10% GHK-Cu and 5% AHK-Cu with licorice root and ginseng for a high-purity peptide treatment.

This concentrated serum blends two copper peptides—GHK-Cu and AHK-Cu—in a lab-tested, minimal-ingredient base to deliver a smooth, fast-absorbing application. The formula is designed for daily use under moisturizers or makeup and balances peptide potency with botanical extracts for a refined sensory feel. The packaging is compact and travel-friendly, offering a single-ounce vial suited to at-home and on-the-go skincare routines.

How do the copper peptides in this serum differ from regular peptide serums?

GHK-Cu and AHK-Cu are specific copper-bound peptides that are distinct from generic peptide blends. They are included at defined concentrations to provide a targeted, consistent peptide profile rather than a proprietary, low-concentration mix.

• 10% GHK-Cu and 5% AHK-Cu declared concentrations for transparency
• Copper-bound peptides formulated in a minimalist, lab-verified base
• Reduced filler ingredients to prioritize active peptide delivery
• Easy layering under creams and sunscreens with little residue

What does the texture feel like and how should I use it in my routine?

The serum absorbs quickly and leaves a non-greasy finish, making it suitable for morning or evening use. Apply a few drops to clean, dry skin after cleansing and before thicker treatments; follow with moisturizer or SPF in daytime routines.

• Light, fluid texture that spreads evenly across the face
• Use 2–4 drops per application for full-face coverage
• Layer under oil-based products or makeup without pilling
• Compatible with most serums and moisturizers—test new combinations first

Why are licorice root and ginseng included in the formula?

Licorice root and ginseng are botanical extracts chosen to complement the peptide system and improve the serum’s sensory and formulation balance. They provide a neutral botanical profile that supports a smooth application and helps maintain formula stability.

• Licorice root extract included for a balanced botanical profile
• Ginseng extract added for formulation synergy and texture refinement
• Both serve as complementary ingredients without heavy fragrances
• Selected to keep the formula minimalist and lab-verifiable

How is product quality verified and what should I expect from the packaging?

The serum follows a high-purity approach with lab testing to confirm concentration and consistency across batches. Packaging is practical and compact, protecting the formula while making it convenient to dispense measured doses.

• Batch-tested to verify peptide concentrations and purity
• Minimalist ingredient list to reduce potential irritants
• Compact 1 oz size designed for portability and controlled dispensing
• Opaque or protective vial to help maintain peptide stability

Who is this for: PREPAKU’s copper peptide serum is aimed at skincare users who prefer concentrated, transparency-driven formulations and want a fast-absorbing, low-residue peptide product. It suits those who layer multiple treatments, travelers who need a small, stable vial, and buyers who look for declared ingredient concentrations rather than vague proprietary blends. If you have sensitive skin, perform a patch test and introduce the product gradually into your routine.

Ingredients

10% GHK-Cu + 5% AHK-Cu Serum