Why It Happens

Skin stretched for years does not shrink back as fast as fat leaves. Losing 20% of body weight in eight months, which GLP-1s make possible, gives it little time. The face, upper arms, belly and thighs show it first.

Slow Down, Build Muscle

The two biggest levers are free. Losing more slowly in the last phase gives skin time. Resistance training and enough protein fill the space with muscle. Our maintenance program is built around both.

GHK-Cu

A copper peptide studied for collagen and elastin production and skin remodeling. Injectable GHK-Cu reaches the whole body; people use it for three to six months at the end of a weight-loss program. Results are gradual and vary. We pair it with epitalon in our skin and longevity stack.

Hydration and the Rest

Hydration IVs with glutathione and vitamin C support skin during the loss. Sermorelin can support lean mass. When skin will not recover, the honest answer is a surgical consult, and we will say so.

Single peptides are $229 a month (glutathione $199), stacks are $299, KLOW is $349, semaglutide is $199 and tirzepatide is $299. A 2-month supply is 10% off and a 3-month supply is 15% off. The provider consultation is $50. That price includes the peptide from an FDA-registered US 503A compounding pharmacy, supplies, overnight refrigerated shipping, the intake review and follow-ups.

Common Questions

Does GHK-Cu really tighten skin?+

It supports the processes that rebuild skin. It is not a lift. Expect gradual, modest change over months.

Injection or cream?+

Injectable for whole-body effect. Creams help the face only.

When should I start it?+

Toward the end of the weight loss, when the rate slows.

How do I get it?+

Every program at Zen IV Spa is prescribed and overseen by our medical director, a licensed physician, after a consultation and baseline labs. A nurse comes to your home in New York or New Jersey for your first dose if you want one, and refills ship to your door.

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.