Skin Age Calculator
Your skin ages based on more than just birthdays. Sun, hormones, and lifestyle all play a role. Estimate your skin's biological age.
Question 1 of 10
How old are you?
Hormones, collagen, and skin aging
Skin aging is driven by two forces: intrinsic aging (genetics, hormones, cellular processes) and extrinsic aging (sun, pollution, lifestyle). For women over 40, the hormonal component becomes the dominant factor.
Collagen loss accelerates 2.5x during menopause. Estrogen directly regulates collagen synthesis, skin thickness, and moisture retention. As estrogen falls, skin becomes thinner, drier, less elastic, and more prone to wrinkling. This isn't cosmetic vanity\u2014skin health is a marker of systemic aging.
Evidence-based treatments include tretinoin (the gold standard for collagen stimulation), GHK-Cu (a copper peptide that promotes skin repair and collagen synthesis), and HRT (which directly addresses the estrogen deficit driving collagen loss).
What is GHK-Cu?
GHK-Cu (copper peptide) is a naturally occurring peptide that declines with age. It stimulates collagen and elastin production, promotes wound healing, reduces inflammation, and has antioxidant properties. In topical formulations, it has been shown to improve skin firmness, reduce fine lines, and improve skin clarity.
Does HRT improve skin?
Yes. Multiple studies show that HRT can increase skin collagen content by 30\u201350%, improve skin thickness, enhance hydration, and reduce wrinkle depth. These effects are most pronounced when HRT is started in the early postmenopausal period.