Zesty Rat GHK-Cu
Evidence Score 65/100 · 1 of 1 GHK-Cu lab reports confirmed by the issuing lab
As of October 10, 2026, Zesty Rat lists GHK-Cu in 50 mg from $35. Its best price works out to $0.70/mg, 9% above the typical $0.64/mg for GHK-Cu. It publishes 1 GHK-Cu lab report; 1 is confirmed in the issuing lab's own records, the newest dated August 18, 2026. Code pepassesscom10 gives 10% off.
GHK-Cu lab reports confirmed by the issuing lab
- August 18, 2026Janoshikpurityview report ↗
GHK-Cu price at Zesty Rat
- From
- $35
- Best per mg
- $0.70/mg
- Typical per mg
- $0.64/mg
- Sizes
- 50 mg
From Zesty Rat's own store, as of October 10, 2026; shipping and discounts not included.
Other GHK-Cu sellers with lab-confirmed reports
| Shop | Score | Per mg | vs typical | Code discount | Code | |
|---|---|---|---|---|---|---|
| Solyn | 100 | $0.96 | 50% above | — | — | Coupon codes |
| Prime Peptides | 96 | $0.60 | 6% below | — | — | Coupon codes |
| Thrive Peptides | 95 | $0.42 | 34% below | 10% | Shop ↗ | |
| Protide Health | 95 | — | — | — | — | Coupon codes |
| Licensed Peptides | 95 | — | — | — | — | Coupon codes |
| Platinum Lion | 93 | $0.55 | 14% below | 10% | Shop ↗ |
Zesty Rat GHK-Cu questions
Is Zesty Rat's GHK-Cu lab tested?
Yes. As of October 10, 2026, Zesty Rat publishes 1 GHK-Cu lab report, and PepAssess matched 1 to the issuing lab's own records (Janoshik). The newest confirmed report is dated August 18, 2026.
How much is GHK-Cu at Zesty Rat?
From $35 (50 mg); its best price works out to $0.70/mg against a typical $0.64/mg, as of October 10, 2026. Prices come from Zesty Rat's own store and exclude shipping and discounts.
Is there a Zesty Rat coupon code for GHK-Cu?
Yes: pepassesscom10 (10% off), entered at checkout on zestyratresearch.com, as of October 10, 2026.
Who else sells lab-tested GHK-Cu?
As of October 10, 2026, the highest-scoring GHK-Cu sellers with a lab-confirmed report, besides Zesty Rat: Solyn (100/100, 4 confirmed), Prime Peptides (96/100, 1 confirmed) and Thrive Peptides (95/100, 3 confirmed).