Built around GHK Cu and exo³ to use your biology to deliver signals and renewals.
Most skincare treats the outer layer. Visible aging begins deeper, where fibroblasts, collagen networks, and cellular signals shape how skin looks, feels, and responds. Cu Glow targets that biology with two actives chosen for a reason.
A copper peptide known for supporting firmer, denser, more resilient looking skin.
A stem cell derived exosome technology designed to support renewal and delivery.
The barrier problem
Skin is built to keep things out. That is why most actives never reach meaningful levels.Cu Glow uses GHK Cu and exo³ because both are suited to move beyond surface level skincare and support the look of renewed skin.
The Cu Glow approach
GHK-Cu is a small, lipophilic tripeptide that crosses the barrier more readily than most peptides. exo³ acts as a biological carrier, facilitating the movement of active cargo past the barrier and into the dermal layer where the biology of renewal occurs.
40+
Years of peer-reviewed research
60%
Decline in levels by age 40
3
Amino acids in the tripeptide chain
29
Atomic number of copper — Cu
GHK Cu is a naturally occurring copper tripeptide found in the body. Your levels are highest when skin is young and decline with age.
Published Research — Key Citations
Pickart, L. (1973)
Human Plasma Fraction with Specific Effect on Collagen Metabolism
Pickart, L. & Margolina, A. (2018)
Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data
Finkley, M.B. et al. (1999)
Influence of Copper Tripeptide on Human Fibroblasts in Culture
Gorouhi, F. & Maibach, H.I. (2009)
Role of Topical Peptides in Preventing or Treating Aged Skin
Leyden, J.J. et al. (2000)
Effect of Copper Tripeptide on Photo-Aged Skin
Exosomes are extracellular vesicles small lipid-bilayer structures secreted by cells to carry cargo to other cells. They are one of the primary mechanisms by which cells communicate. In clinical settings, exosome technology has been studied for drug delivery, wound healing, and regenerative medicine applications.
Stem cell origin
Derived from human adipose stromal cells, a type of adult mesenchymal stem cell source.
Batch verification
Each batch is tested with nanoparticle tracking analysis to confirm particle size and concentration.
Exosome identity
Key markers CD9, CD63, and CD81 are checked to confirm exosome identity.
Sterility Testing
Each lot must pass sterility testing before release.
Topical integrity
exo³ is formulated to preserve vesicle structure through production and application.
A note on the market
Not everything called an exosome is the same. Many skincare products use plant vesicles or unverified preparations. exo³ is human derived, stem cell sourced, and validated to exosome standards.
Every Cu Glow product was evaluated in an internal use study over sixty days. Results are based on user assessment and standardized photo evaluation. These are internal use studies, not randomized controlled trials. Individual results vary.
01 / Anti-Aging Serum
Evaluated for skin tone, texture, firmness, and the look of fine lines.
02 / Moisturizing Face Cream
Evaluated for hydration, radiance, tone uniformity, and the appearance of skin density.
03 / Eye Rescue Balm
Evaluated for the look of fine lines, puffiness, and tone around the eye area.
04 / Hair Renewal Serum
Evaluated for scalp condition, visible hair density, and the appearance of fullness.
05 / Body Renewal Lotion
Evaluated for texture, tone, and resilience on the neck, décolletage, and arms.
Results Disclaimer
Results based on internal use studies of CU Glow formulations. Individual results vary. These are not randomised controlled trials. Full methodology available on request.
Cu Glow products are made in a cGMP certified facility registered with the US FDA under MoCRA. Every batch follows a documented release process before it ships.
Manufactured under current good manufacturing practice standards with batch record review before release.
Facility registration and product listing are submitted under current cosmetic requirements.
Every lot is reviewed for identity, purity, and potency. exo³ lots undergo particle analysis, marker confirmation, and sterility testing.
exo³ is sourced from screened donors under FDA donor eligibility guidance, including medical review and informed consent.