






GHK-Cu | Copper Peptide Hair Tonic for Fuller-Looking Hair
PLU Laboratories Hair Tonic
A clinically studied peptide solution designed to help hair appear fuller, thicker, and healthier-looking with consistent daily use.
Key Benefits
Supports Hair Appearance
GHK-Cu helps support the look of hair thickness and fullness over time
Enhances Hair Look
Acetyl Tetrapeptide-3 helps improve how hair appears with consistent use
Scalp Health Support
Designed to help maintain healthy-looking scalp conditions
Research-Backed Formula
Based on clinical studies of GHK-Cu & Acetyl Tetrapeptide-3
Clean Formula
No harsh chemicals, parabens, sulfates, or synthetic fillers
The Science Behind PLU Hair Tonic
PLU Hair Tonic is powered by two clinically studied peptides:
GHK-Cu (Copper Peptide Complex)
Supports scalp's natural processes and helps improve the appearance of hair thickness and density
Acetyl Tetrapeptide-3
A peptide studied for its role in supporting the appearance of hair density by helping maintain healthy follicle conditions
How to Use
- Apply 1-2 droppers directly to the scalp, focusing on areas where you want to improve hair appearance
- Massage gently with fingertips to enhance absorption
- Leave in – no need to rinse
- Use daily for best results
Pro Tip: For optimal results, use consistently for at least 8-12 weeks
Ingredient Transparency
Active Ingredients
- GHK-Cu (Copper Peptide Complex) – Supports scalp's natural processes and hair appearance
- Acetyl Tetrapeptide-3 – Helps support the appearance of hair density and fullness
What's NOT Inside
No harsh chemicals, parabens, sulfates, silicones, or artificial fragrances
Product Information
Complete Ingredient List
INGREDIENTS: Water (Aqua), Glycerin, Copper Tripeptide-1, Acetyl Tetrapeptide-3, Phenoxyethanol
Safety Information & Directions
Directions for Use
Apply 1-2 droppers directly to the scalp, focusing on areas where you want to improve hair appearance. Massage gently with fingertips to enhance absorption. Leave in – no need to rinse. Use daily for best results. For external use only.
Safety Warnings
For external use only. Avoid contact with eyes. If irritation occurs, discontinue use. Keep out of reach of children.
Product Details
- Net Contents: Available in 10 mL (0.33 fl oz) and 30 mL (1.0 fl oz)
- Made in Mexico
- Period After Opening: 12M (Use within 12 months after opening)
Company Information
Distributed by PLU Laboratories
9 S. Elmhurst Road
PO Box #39
Prospect Heights, IL 60070
Individual results may vary. Results typically visible within 6-8 weeks of consistent daily use.
Free Standard Shipping on all orders $49 and above. Orders typically ship within 1-2 business days.
Delivery Time: 3-7 business days for standard shipping
Processing Time: 1-2 business days (Monday-Friday, excluding holidays)
International Shipping: Currently available to select countries. Shipping costs calculated at checkout.
Order Tracking: You'll receive a tracking number via email once your order ships.
Returns & Exchanges
30-Day Return Policy: You have 30 days after receiving your item to request a return.
Return Eligibility: Items must be in original condition, unopened, and in original packaging.
How to Return:
- Contact us at productteam@plulaboratories.com to initiate return
- We'll provide a prepaid return shipping label
- Follow the return instructions we send you
Refund Processing: Refunds processed within 7-10 business days after we receive your return.
Questions? Contact our team at productteam@plulaboratories.com for any shipping or return questions.
Choose options







Inside the Lab: PLU’s Science & Skincare Insights

Acetyl Tetrapeptide-3: What Clinical Research Reveals About This Hair Peptide
Acetyl Tetrapeptide-3 is a biomimetic peptide extensively studied for supporting hair density appearance. Clinical research suggests this peptide may help hair appear more securely anchored by targ...
Read more
GHK-Cu Copper Peptides: What Clinical Research Reveals
GHK-Cu has been extensively studied since 1973, making it one of the most researched peptides in cosmetic science. Clinical studies suggest this copper peptide supports skin firmness appearance and...
Read more
Matrixyl 3000: What Clinical Research Reveals About This Peptide Complex
Matrixyl 3000 is a dual-peptide complex extensively studied in clinical research for supporting skin firmness appearance. Studies suggest this palmitoyl peptide combination works through cellular s...
Read more