About PLU Laboratories
Six ingredients or less. Everything you need, nothing you don't.
Why PLU Laboratories Exists
Most peptide serums contain either GHK-Cu OR other peptides, rarely both. Many dilute their active ingredients with hyaluronic acid, vitamin C, and botanical extracts, reducing the peptide concentrations actually studied in clinical research.
We founded PLU Laboratories to address this gap. The research published by the NIH examines specific GHK-Cu concentrations for tissue processes and collagen production pathways. Studies on Palmitoyl Peptides and Acetyl Tetrapeptide-3 focus on signal peptides for skin firmness appearance and biomimetic peptides for hair follicle support.
What Makes PLU Different
Dual-Peptide Systems
Our Face Tonic combines GHK-Cu with Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7. Our Hair Tonic combines GHK-Cu + Acetyl Tetrapeptide-3. Complementary peptides working through distinct mechanisms.
Meaningful Concentrations
1% GHK-Cu, Palmitoyl Peptides, 1% Acetyl Tetrapeptide-3. The concentrations studied in research, not diluted below efficacy thresholds.
No Filler Dilution
No hyaluronic acid, vitamin C, or botanical extracts mixed in. Pure peptide formulations you can layer with other actives separately.
Why We Started PLU Laboratories
In 2021, one of our founders decided something had to change. He'd tried minoxidil but dealt with scalp irritation. After diving into published research on GHK-Cu and copper peptides, he knew he'd found something different.
But sourcing quality copper peptides meant ordering from overseas suppliers - some delivered poor quality product, others took months to arrive. Finding reliable sources meant navigating 6-8 week shipments, clearing customs, and hoping concentrations matched what he ordered.
He committed to consistent daily use with GHK-Cu + Acetyl Tetrapeptide-3 for his hair. The photos tell his story.
2021
2025
Real results take time and consistency. These images represent results after years of daily application.
Through his research, he also discovered GHK-Cu's applications for facial skin appearance when combined with Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7. The same sourcing challenges applied - finding meaningful concentrations without unnecessary additives or filler dilution was nearly impossible.
That formulation he used for his hair became our GHK-Cu Hair Tonic. The skin formulation he developed became our GHK-Cu Face Tonic. As we continue researching copper peptide variants, we launched AHK-Cu Hair Tonic as a third product. We started PLU Laboratories because these products didn't exist anywhere else - and everyone deserves access to research-backed copper peptide formulations without the frustration of trial and error.
Three Formulations, Focused Results
We don't believe in kitchen-sink formulations. Each PLU product contains five ingredients - the peptides that deliver results and nothing more. Everything else is dilution that compromises efficacy.
GHK-Cu Hair Tonic
The Formula: GHK-Cu (1%) + Acetyl Tetrapeptide-3 (1%)
What It Delivers:
- Fuller hair appearance and improved hair density
- Scalp health support and enhanced scalp circulation
- Improved hair texture and shine
- Visible improvements in overall hair appearance
GHK-Cu Face Tonic
The Formula: GHK-Cu (1%) + Palmitoyl Peptides
What It Delivers:
- Firmer skin appearance through enhanced collagen synthesis
- Reduced fine line appearance via collagen production support
- Improved skin texture and skin elasticity
- Enhanced skin regeneration and tissue repair
AHK-Cu Hair Tonic
The Formula: AHK-Cu (1%) + Acetyl Tetrapeptide-3 (1%)
What It Delivers:
- Hair-focused copper peptide variant for follicle support
- Synthetic copper peptide alternative to GHK-Cu
What We Don't Include
- No hyaluronic acid
- No vitamin C
- No botanical fillers or DHT blockers
Built for Efficiency
Apply 2-3 drops to clean skin or scalp once daily. The dual-peptide systems absorb in seconds. Layer other actives separately if desired. Both products together take under 60 seconds total.
Frequently Asked Questions
How long until I see results with copper peptides?
Real results take time and consistency. Most users notice initial improvements in skin texture or hair appearance within 4-8 weeks of daily use. Significant changes in skin firmness appearance or hair density typically become visible after 3-6 months of consistent application. The founder's before and after photos represent years of daily use - quality copper peptide formulations work, but they require commitment.
Can I use Face Tonic and Hair Tonic together?
Yes, absolutely. Both products work through complementary peptide mechanisms and can be used together as part of your daily routine. Apply Face Tonic to clean facial skin and Hair Tonic to your scalp - both absorb in seconds. Total application time is under 60 seconds for both products. Many customers use both products daily for comprehensive peptide support.
Why don't you include hyaluronic acid or vitamin C?
We exclude hyaluronic acid, vitamin C, and botanical extracts because they dilute peptide concentrations below the levels studied in research. Our philosophy is pure peptide delivery at meaningful concentrations - you can layer other actives like hyaluronic acid or vitamin C separately if desired. This approach ensures you're getting the exact peptide concentrations examined in published research, not diluted formulations that compromise efficacy.
What makes PLU different from other peptide brands?
Three key differences: (1) Dual-peptide systems - we combine GHK-Cu with complementary peptides like Palmitoyl Peptides or Acetyl Tetrapeptide-3, not just GHK-Cu alone. (2) Meaningful concentrations - 1% GHK-Cu, Palmitoyl Peptides, 1% Acetyl Tetrapeptide-3 match the levels studied in research. (3) No filler dilution - we don't mix in hyaluronic acid, vitamin C, or botanicals that reduce active peptide concentrations. Just 6 ingredients per formulation focused on maximum peptide delivery.
How do I use these products in my routine?
Face Tonic: Apply 2-3 drops to clean, dry facial skin once daily (morning or evening). Allow 30 seconds to absorb. Layer other products separately if desired.
Hair Tonic: Apply 2-3 drops directly to scalp in areas of concern. Massage gently. No need to rinse. Use once daily on clean, dry scalp.
For deeper reading on why topical application outperforms injections, see our topical vs injectable copper peptide research.
Experience Dual-Peptide Technology
Complementary peptide systems at meaningful concentrations. No hyaluronic acid, vitamin C, or DHT blocker dilution. Just the amino acid complexes studied in published research.
Questions About Our Formulations?
Our product team can provide guidance on which dual-peptide system is right for your routine, answer formulation questions, or address any concerns about peptide concentrations and complementary technologies.