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Australian Made

Australian owned & operated

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In-House Chemists

Never white-labelled

🐰

Cruelty Free

Certified vegan

4.9 / 5 Rating

94 verified reviews

MEET THE DUO

Two Serums. One Unstoppable Protocol.

GHK-Cu Copper Peptide Serum

Copper Tripeptide-1 + Matrixyl 3000

KEY INGREDIENTS

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Copper Tripeptide-1 Regulates 4,000+ genes
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Matrixyl 3000 Stimulates collagen + elastin
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Hyaluronic Acid Deep hydration + plumping

4,000+ genes regulated

Published research since 1973

PDRN Multi-Peptide Serum

PDRN Multi-Peptide Serum

PDRN 1.2% + Matrixyl 8%

KEY INGREDIENTS

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PDRN 1.2% Cellular DNA repair and renewal
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Matrixyl 8% Peptide complex for firming
Niacinamide Brightening + barrier support

Cellular renewal at the DNA level

Derived from salmon DNA extract

THE SCIENCE OF SYNERGY

Why These Two Work Better Together

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Dual Pathway Regeneration

GHK-Cu rebuilds collagen and elastin from above. PDRN renews cells at the DNA level from below. Two mechanisms, one result.

Amplified Absorption

GHK-Cu enhances the skin's capacity to receive and process active ingredients — improving PDRN uptake and efficacy.

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Clinic-Grade Combination

This pairing mirrors the ingredient protocols used in high-performance skin clinics — bringing results home in two bottles.

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Measurable Results

Users report visible improvements in texture, firmness and tone within 4 weeks — results that outpace either serum alone.

AI ROUTINE SCAN

What AI notices about the GHK-Cu + PDRN serum routine

A formula-logic scan of why the copper peptide serum and PDRN serum make sense together, without treating them like duplicate products.

GHK-Cu 9.6/10PDRN 9.3/10Two serum lanesRoutine fit
Watch the AI Scan
Saved ChatGPT scores 9.6 + 9.3

Individual formula scans: GHK-Cu Serum rated 9.6/10 and PDRN Serum rated 9.3/10 from saved ChatGPT formula reviews. Not a combined score.

GHK-Cu Serum: 9.6/10PDRN Serum: 9.3/10Different jobs, same routine

HELLOSKIN ROUTINE AI

Replaying saved AI-style routine scan...
Scan this like a shopper comparing the GHK-Cu serum and PDRN serum as a two-step routine. Use the saved ChatGPT formula reviews, then explain whether the bundle makes sense.

Reading both serum formulas

Mapping GHK-Cu role

Mapping PDRN role

Checking overlap

Scoring routine logic

The individual scans are the strong part here. The GHK-Cu Serum scored 9.6/10 for its 1.2% GHK-Cu and 9% total peptide system. The PDRN Serum scored 9.3/10 for its 1.2% pure salmon DNA, 4-layer hyaluronic acid, 3% niacinamide and 4% peptide support. Together, they read like two complementary serum lanes rather than two products doing the same job.
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GHK-Cu Serum: 9.6/10

The saved ChatGPT review called this a genuinely strong copper peptide formula, led by 1.2% GHK-Cu and a 9% total peptide system for firmer-looking, smoother-looking skin.

2

PDRN Serum: 9.3/10

The saved ChatGPT review rated the PDRN serum highly for 1.2% pure salmon DNA, 4-layer hyaluronic acid, 3% niacinamide and 4% peptide support.

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Different jobs, same routine

GHK-Cu gives the routine its copper peptide and firmness-focused lane. PDRN gives it the bouncy, hydrated and fresher-looking skin lane.

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Easy AM/PM pairing

Use one serum as the morning focus and one as the night focus, or alternate depending on what your skin feels like it needs.

AI-style routine analysis based on the ingredient and formula information shown on this page. Not a medical review, medical advice or live third-party endorsement.

READY TO BEGIN?

Your Skin Will Thank You.

Add the duo to your cart in one click. Free shipping on orders $80+.

🔒 Secure Checkout · ↩️ 30-Day Money-Back · 🚚 Free Shipping $80+

Customer Reviews

Overall rating: 5.0 / 5 from 12 reviews.

Customer photo review of The Repair Duo — GHK-Cu + PDRN Serum

First two pics are 3 weeks ago and the other two are today wow I’m amazed how well the ghk-cu and pdrn are working on my skin so much smoother and radiant love this product so much thankyou guys im defently going to get more keep using it.

The Repair Duo — GHK-Cu + PDRN Serum

For someone who is sceptical when it comes to beauty products and the hype that comes with it this product is amazing. Admittedly I struggle with strict skincare routines and as a 40+ year old has only now been really focusing on my skin due to aging. I can honestly say 3 months in using these products and I have noticed a significant change in my skins texture, appearance and there’s a reduction in my pores. Im a huge fan and highly recommend to others

The Repair Duo — GHK-Cu + PDRN Serum

I don’t think I have ever been more impressed and excited by a skincare product! After using both the blue and the pink serums for just a week I immediately returned to the beautifully designed and presented website to purchase some more ! I have been absolutely delighted and completely blown away by the quality and effectiveness, the integrity and results and have not stopped raving about them to anyone and everyone! I immediately ordered the fabulous overnight (completely transformative ) masks in both the pink and the blue and was speechless after my inaugural use of the pink one ! After a very long week of late nights and early mornings and perhaps a little too much champagne the night before, this incredible breakthrough product transformed my good but tired 55 year old skin into something altogether different! Glowing and beautiful in one easy step , I chose to leave it on during the afternoon whilst I domestic goddessed and it worked like a dream after 3 or so hours I can only imagine how effective this perfect product will be when worn overnight! The customer service is remarkable and so personal, nothing is a problem and everyone is taken care of immediately and with absolute kindness and professionalism as can only be expected from a passionate true believer who clearly has a great gift for a science backed business delivering good old fashioned service with industry changing results! I cannot wait to see where Hello Skin takes this enormous potential and I’m so happy to have said hello to my best skin journey 🩷💙☺️🫶🏽 Highly recommend ⭐️⭐️⭐️⭐️⭐️

The Repair Duo — GHK-Cu + PDRN Serum

Well delivery super fast, the customer service I received was outstanding & very helpful . Been using this product only for a few weeks & people have noticed the difference. Thank you so much

The Repair Duo — GHK-Cu + PDRN Serum