GHK-Cu Niacinamide Firm Boost Serum
Two-active serum focused on collagen synthesis (GHK-Cu) and barrier repair (niacinamide). Same concentration profile as the SNAP-8 serum minus the SNARE-inhibition peptide; preferred when expression-line targeting is not the goal.
Medically reviewed by Dr. Jonathan Snipes, MD. Last reviewed May 6, 2026.
What It Is
A compounded prescription serum at 3% GHK-Cu and 3% niacinamide in a lightweight aqueous vehicle. Designed for daily firming and barrier support across the face, neck, and decolletage. The 3% GHK-Cu concentration is approximately 30 times higher than mass-market OTC copper peptide serums.
How It Works
Applied to clean face once or twice daily. GHK-Cu signals fibroblast collagen and elastin synthesis; niacinamide reinforces the skin barrier and reduces redness. Layer moisturizer on top.
Who It's For
Patients prioritizing firmness, tone, and barrier integrity over expression-line targeting. Suitable for daily long-term use.
Who Should Avoid It
Known copper allergy. Avoid on broken skin. Patch test if niacinamide-sensitive.
Protocol & Pricing
Pharmacy Price
$120/30mL
You pay pharmacy price. No markup.
Starting Dose
3 to 5 drops applied to face once or twice daily
Form
Topical serum (30mL bottle, GHK-Cu 30mg/mL, Niacinamide 30mg/mL)
Dosing Protocol
Apply 3 to 5 drops to face and neck once or twice daily after cleansing. Layer moisturizer on top. 30mL bottle covers approximately 90 to 120 days of twice-daily use.
Beyond Use Date
180 Days from compounding (USP <795>)
A licensed U.S. 503A compounding pharmacy assigns this date and prints it on your vial label. Always follow the label.
Stacking Guide
Stacks Well With
Topical copper peptide protocol
Read the GHK-Cu Niacinamide Firm Boost Serum protocol guide
Why prescription compounded GHK-Cu (1 to 3 percent) outperforms The Ordinary, Biossance, and NIOD (0.05 to 0.1 percent). The seven topical peptides Rx Peps Direct prescribes and how to pick between them.
Related Peptides
Cashmere Cream (GHK-Cu 3% / Niacinamide 4%)
Compounded 3% GHK-Cu and 4% niacinamide daily moisturizer. 30 to 60 times the copper-peptide concentration of OTC serums.
$45/30gmGHK-Cu 1% Hair Restoration Solution
Compounded 1% GHK-Cu scalp solution. Tripeptide-copper complex for hair restoration and follicular support.
$100/30mLHow to get GHK-Cu Niacinamide Firm Boost Serum prescribed online
GHK-Cu Niacinamide Firm Boost Serum is available by prescription through a licensed telehealth visit and dispensed for human use by a licensed 503A pharmacy. That is what separates it from research-use-only vials sold without a prescription. There is no membership, just a medical review fee per order, and automatic refills are optional.
- 1
Complete a $39 medical review. Answer a short intake about your health history and your goals for GHK-Cu Niacinamide Firm Boost Serum. The $39 fee is the only charge Rx Peps Direct collects, paid once, not a recurring subscription.
- 2
A licensed provider reviews it. A US-licensed clinician reviews your intake and, if GHK-Cu Niacinamide Firm Boost Serum is appropriate for you, writes a patient-specific prescription. The starting dose is typically 3 to 5 drops applied to face once or twice daily.
- 3
The pharmacy compounds and ships it. A licensed 503A compounding pharmacy in Texas compounds GHK-Cu Niacinamide Firm Boost Serum and ships it ready to use in its dispensed form by FedEx overnight. Your fill is Topical serum (30mL bottle, GHK-Cu 30mg/mL, Niacinamide 30mg/mL), and you pay the pharmacy $120/30mL at wholesale, with no clinic markup, plus a $15 flat FedEx overnight shipping fee charged by the pharmacy.
Rx Peps Direct prescribes GHK-Cu Niacinamide Firm Boost Serum in the 28 states plus Washington, DC where its medical team is licensed. Start a $39 visit or browse the full Skin & Hair range. Comparing services first? See how Rx Peps Direct stacks up against seven other providers in our best telehealth for compounded peptides comparison.
Common questions about GHK-Cu Niacinamide Firm Boost Serum
- What is GHK-Cu Niacinamide Firm Boost Serum?
- A compounded prescription serum at 3% GHK-Cu and 3% niacinamide in a lightweight aqueous vehicle. Designed for daily firming and barrier support across the face, neck, and decolletage. The 3% GHK-Cu concentration is approximately 30 times higher than mass-market OTC copper peptide serums.
- How does GHK-Cu Niacinamide Firm Boost Serum work?
- Applied to clean face once or twice daily. GHK-Cu signals fibroblast collagen and elastin synthesis; niacinamide reinforces the skin barrier and reduces redness. Layer moisturizer on top.
- Who is GHK-Cu Niacinamide Firm Boost Serum for?
- Patients prioritizing firmness, tone, and barrier integrity over expression-line targeting. Suitable for daily long-term use.
- How much does GHK-Cu Niacinamide Firm Boost Serum cost?
- GHK-Cu Niacinamide Firm Boost Serum costs $120/30mL from a licensed U.S. 503A compounding pharmacy at wholesale, with a flat $39 medical review from Rx Peps Direct. The form is Topical serum (30mL bottle, GHK-Cu 30mg/mL, Niacinamide 30mg/mL).
- What is the Beyond Use Date for GHK-Cu Niacinamide Firm Boost Serum?
- A licensed U.S. 503A compounding pharmacy assigns the Beyond Use Date for GHK-Cu Niacinamide Firm Boost Serum and prints it on the vial label. The listed figure is 180 Days from compounding (USP <795>). Always follow the date on your own label.