







GHK-Cu | Copper Peptide Face Tonic for Firmer-Looking Skin
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Dual-Peptide System for Firmer-Looking Skin
Clinically studied GHK-Cu + Matrixyl 3000 at concentrations that match published research. Designed for visible improvements in skin firmness appearance and fine lines.
Key Benefits
Supports Skin Firmness
GHK-Cu copper peptide supports skin's natural collagen pathways for firmer-looking skin appearance
Addresses Fine Lines
Matrixyl 3000 helps improve how fine lines and skin texture appear over time
Enhances Skin Appearance
Helps retain moisture and even out skin tone for a refreshed, healthy-looking complexion
Research-Backed Formula
Based on clinical studies examining peptide concentrations and their effects on skin appearance
The Science Behind Face Tonic
GHK-Cu (Copper Peptide Complex)
A copper tripeptide studied for its role in supporting skin's natural collagen pathways. Research published by the NIH describes GHK-Cu as a naturally occurring copper complex examined for tissue remodeling processes and its effects on skin appearance.
Our formulation uses 1% GHK-Cu concentration consistent with clinical research examining this peptide's effects on skin firmness appearance.
Matrixyl 3000 (Dual Peptide Complex)
Combines Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7 - matrikine signal peptides studied for their role in supporting skin cell communication and the appearance of fine lines reduction.
Our Face Tonic uses complete Matrixyl 3000 at 3% concentration (both peptides included) as studied in clinical literature examining effects on skin texture and firmness appearance.
Learn more about our peptides: GHK-Cu Research | Matrixyl 3000 Research
How to Use
- Apply 2-3 drops to cleansed skin, focusing on areas where you want to improve appearance
- Gently massage until fully absorbed (takes about 30 seconds)
- Use morning and/or evening for best results
- Follow with moisturizer to lock in hydration if desired
Pro Tip: For comprehensive peptide support, pair with our Hair Tonic for scalp and hair appearance benefits.
Ingredient Transparency
Active Ingredients
GHK-Cu (1%): Copper Tripeptide-1 for skin firmness appearance
Matrixyl 3000 (3%): Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7 for fine lines appearance
What's NOT Inside
No parabens, sulfates, silicones, or artificial fragrances. No hyaluronic acid or vitamin C dilution - just focused peptide technology at clinical concentrations.
Complete Ingredient List (INCI): Water (Aqua), Glycerin, Copper Tripeptide-1, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Phenoxyethanol
What to Expect
Results typically become visible within 6-8 weeks of consistent daily use:
- Weeks 1-2: Skin feels smoother, improved overall comfort
- Weeks 3-4: Visible improvements in skin texture appearance
- Weeks 6-8: Notable improvements in skin firmness appearance
- Weeks 8+: Continued improvements with consistent daily use
Individual results may vary. Consistent daily application recommended.
Product Details
Size Options:
10 mL (0.33 fl oz) or 30 mL (1.0 fl oz)
Usage Period:
12 months after opening
Made in: Mexico
For External Use Only
Avoid contact with eyes. Discontinue if irritation occurs.
Distributed by:
PLU Laboratories
Prospect Heights, IL 60070
Frequently Asked Questions
How long until I see results?
Most users notice initial improvements in skin texture within 3-4 weeks of consistent daily use. More significant appearance changes in skin firmness typically become visible around 6-8 weeks, consistent with clinical study timelines examining peptide formulations at the concentrations we use.
For optimal results, we recommend applying Face Tonic once or twice daily for at least 8-12 weeks.
Can I use Face Tonic with other skincare products?
Yes! Apply Face Tonic to clean skin first, allow it to absorb (30-60 seconds), then layer other products like hyaluronic acid, vitamin C serum, or moisturizer. This maintains peptide efficacy while allowing you to address other skin needs.
We intentionally formulated Face Tonic without these ingredients so you can customize your routine based on your specific needs.
Is Face Tonic safe for sensitive skin?
Our formulation focuses on peptides without common irritants like parabens, sulfates, silicones, or artificial fragrances. However, as with any new skincare product, we recommend patch testing on a small area first.
If you have specific skin concerns or conditions, consult with a dermatologist before use.
What makes PLU's Face Tonic different from other peptide serums?
Most peptide serums dilute their active ingredients with fillers like hyaluronic acid, aloe vera, or multiple actives. While these aren't harmful, they reduce the concentration of the peptides that research actually studied.
Face Tonic uses dual-peptide technology at clinical concentrations: 1% GHK-Cu + 3% Matrixyl 3000 (complete formula). This matches the concentrations examined in published research, not watered-down versions.
Should I use Face Tonic morning, night, or both?
For best results, apply Face Tonic twice daily - morning and evening. However, if you prefer a simpler routine, once daily (preferably evening) is still effective.
The key is consistency. Choose a routine you'll stick with long-term for optimal appearance benefits.
Can I use Face Tonic with Hair Tonic?
Absolutely! Many users apply both products daily for comprehensive peptide support across face and scalp. Face Tonic addresses skin firmness appearance while Hair Tonic targets hair density appearance.
Both products take under 30 seconds to apply, making them easy to incorporate into your daily routine together.
Does Face Tonic work for all skin types and ages?
Face Tonic is designed to be compatible with various skin types. The peptide formulation focuses on supporting skin's natural processes regardless of skin type.
While peptides are often associated with mature skin concerns, they can be beneficial at any age for maintaining skin firmness appearance and addressing early signs of aging.
What's the difference between the 10ml and 30ml sizes?
10 mL (0.33 fl oz): Approximately 3-4 weeks supply with twice-daily use. Perfect for trying Face Tonic or for travel.
30 mL (1.0 fl oz): Approximately 8-12 weeks supply with twice-daily use. Best value for consistent long-term use to see optimal results.
Why doesn't Face Tonic include hyaluronic acid or vitamin C?
We focused on maintaining the peptide concentrations studied in clinical research. Adding hyaluronic acid, vitamin C, or other actives would require diluting the GHK-Cu and Matrixyl 3000 concentrations.
If you want these ingredients, you can layer them separately after Face Tonic absorbs. This gives you flexibility to customize your routine while maintaining peptide efficacy.
Learn more about our formulation philosophy on our Best Copper Peptide Serum page.
Inside the Lab: PLU’s Science & Skincare Insights

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