What GHK-Cu Is
GHK-Cu is a copper peptide found naturally in the body that declines with age, studied for collagen production and skin remodeling. It is taken as a daily subcutaneous injection, 3 to 6 months, and most people notice it in 2 to 3 months.
What Glutathione Is
Glutathione is the body's main antioxidant, injected because the oral form is poorly absorbed. It is taken as a subcutaneous injection twice a week, or a $90 nurse-given shot, and most people notice it in 4 to 8 weeks for skin.
Side by Side
| GHK-Cu | Glutathione | |
|---|---|---|
| Best for | skin, collagen and hair | antioxidant support and skin clarity |
| How it is taken | daily subcutaneous injection, 3 to 6 months | subcutaneous injection twice a week, or a $90 nurse-given shot |
| Time to notice | 2 to 3 months | 4 to 8 weeks for skin |
| Price at Zen IV Spa | $229/mo | $199/mo |
| Common side effects | injection-site redness; rare copper taste | rare injection-site irritation |
| FDA status | not FDA-approved; compounded by prescription | not FDA-approved for these uses; compounded by prescription |
Pick GHK-Cu If
Your main concern is skin texture, firmness, loose skin after weight loss, or hair. It is the right call when the goal is skin, collagen and hair and you want the simpler, more targeted option.
Pick Glutathione If
Your main concern is skin clarity, recovery after drinking or training, or antioxidant support. It is the right call when the goal is antioxidant support and skin clarity.
Can You Combine Them?
Yes. GHK-Cu for collagen and texture, glutathione for clarity and tone. People with skin goals often run both.
How to Get Either One in New York or New Jersey
Every program at Zen IV Spa is prescribed and overseen by our medical director, a licensed physician, after a video consultation and baseline labs drawn at your home. Refills ship overnight anywhere in New York or New Jersey, and a nurse can come to your door for the first dose.
Single peptides are $229 a month (glutathione $199), stacks $299, semaglutide $199, tirzepatide $299. A 2-month supply is 10% off and 3 months is 15% off. The $50 consultation is one-time.
Common Questions
Which is better, GHK-Cu or Glutathione?+
Neither is better in general. GHK-Cu for skin, collagen and hair; Glutathione for antioxidant support and skin clarity. The provider chooses from your labs and goals.
Which costs more?+
GHK-Cu is $229/mo; Glutathione is $199/mo at Zen IV Spa, shipping and follow-ups included.
Are they FDA-approved?+
GHK-Cu: not FDA-approved; compounded by prescription. Glutathione: not FDA-approved for these uses; compounded by prescription. We say so plainly on every page.
Can I switch from one to the other?+
Yes. Programs run month to month with no contract; the provider adjusts at any check-in.
How do I start?+
Book a $50 video consultation at Zen IV Spa; a nurse draws baseline labs at your home.
All treatments are medical services. Every guest is screened, and every treatment is provided only under the clearance, prescription or standing protocol of a licensed medical provider. Compounded peptides are not FDA-approved unless stated. Nothing on this page is a diagnosis or a promise of results.