Science Report

Skin & ageing
Report SR-04
Science ReportSkin & Ageing Series

Why skin seems to change almost overnight after 45

What happens in the dermis in midlife, and the copper peptide behind the conversation

Contents

  1. Overview
  2. What changes, and why
  3. Enter GHK-Cu
  4. What to look for
  5. The bottom line
  6. References

Many people notice their skin change quickly in midlife — looser, thinner and less firm than the year before. This report explains what is happening in the skin, why it can feel sudden, and why a clearly dosed copper peptide has become the ingredient of the moment.

1. What changes, and why

Skin gets its firmness from the dermis, the layer beneath the surface that holds collagen and elastin. From around the mid-forties, and particularly in the years around menopause, the dermis loses a meaningful share of its collagen in a relatively short window.[3] The creams that worked for a decade can suddenly seem to stop, because they were hydrating the surface while the change was happening deeper. The relevant layers are shown in Figure 1, and the pattern of decline in Figure 2.

Epidermis surface barrier Dermis collagen + elastin give skin its firmness Subcutis fat + support Copper peptide (GHK-Cu) activity is studied in the dermis, where natural levels decline with age.
Figure 1. Simplified cross section of skin. The dermis holds the collagen and elastin that give skin its firmness.
years around menopause 3040506070 Age (years) Relative dermal collagen
Figure 2. Relative dermal collagen against age. The decline is steepest in the years around menopause, which is why the change can feel sudden.

2. Enter GHK-Cu

GHK-Cu, copper tripeptide-1, is the blue copper peptide the body already makes and makes less of with age. In cosmetic use it is one of the most studied peptides in skincare, valued for supporting the look of firmer, smoother and more resilient skin.[1] Unlike retinol it is not exfoliating, which is why it is often chosen by people whose skin no longer tolerates the sting and flaking of stronger actives.

3. What to look for in a copper peptide serum

Three things matter. The dose, stated as a clear percentage on the label rather than hidden behind “with copper peptides”. Freshness, because copper peptides oxidise and fade once a bottle is opened, so a smaller bottle used within a month stays closer to full strength than a large one used over half a year. And consistency, because the visible change builds in stages over six to eight weeks of daily use.

4. The bottom line

The science conversation around copper peptides is genuinely interesting, but the format matters as much as the ingredient. A stated dose, a fresh bottle and a daily habit are what separate a result from another jar in the drawer. KYORS was built around exactly this: a stated 1% GHK-Cu, a fresh 10ml month, and a gentle daily formula.

References

  1. Pickart L, Margolina A. Regenerative and Protective Actions of the GHK-Cu Peptide. International Journal of Molecular Sciences. 2018;19(7):1987.
  2. Pickart L. The human tri-peptide GHK and tissue remodeling. Journal of Biomaterials Science, Polymer Edition. 2008;19(8):969–988.
  3. Brincat M, Versi E, Moniz CF, et al. Skin collagen changes in postmenopausal women. British Journal of Obstetrics and Gynaecology. 1987.
  4. Australasian College of Dermatologists. Ageing skin: patient guidance.

This article is general information about cosmetic ingredients and the appearance of skin. It is not medical advice and does not describe the treatment of any condition. KYORS is a cosmetic skincare product intended to improve the look and feel of skin. It is not intended to diagnose, treat, cure or prevent any disease. Individual results vary.