RHIVA
Copper Peptide Science — GHK-Cu 2%
Peptides,
without the needle.
Clinically studied GHK-Cu at an efficacious 2% — regenerative peptide results delivered through the skin, not a syringe.
2%
GHK-Cu Active
12wk
Clinical Study
94%
Saw Results
02 Our Formulas
Clinical formulations,
with integrity.
Every RHIVA formula is built around a single efficacious active at a meaningful concentration. No padding, no filler, no compromise.
Early Access
Notify me when this launches
Leave your email and we will let you know as soon as this formula is available.
03 Personalised Routine
Find Your Formula.
Answer two questions. We'll match you to the right RHIVA formulation.
I am looking for
to target
04 Ingredient Science
The molecule that
rebuilds skin.
GHK-Cu — Glycyl-L-Histidyl-L-Lysine copper(II) — is a naturally occurring tripeptide first isolated from human plasma in 1973. Present in the skin at birth, its concentration declines by over 60% between the ages of 20 and 60. With it goes the skin's capacity to repair itself.
At 2%, RHIVA reaches the threshold shown in peer-reviewed studies to activate collagen synthesis, stimulate fibroblast production, and initiate the skin's own tissue repair cascade. Not surface-level hydration — structural regeneration.
GHK · Cu²⁺
Glycyl-L-Histidyl-L-Lysine · Copper(II) Complex
Tripeptide-copper chelate. MW 340.38 g/mol. Naturally present in human plasma, saliva, and urine. Concentration declines significantly with age.
05 Clinical Observations
What to expect,
week by week.
12-week observational study. 42 participants aged 32-58 applying RHIVA GHK-Cu Serum twice daily. No concurrent actives. Results self-reported and dermatologist-corroborated.
Week 1-2
Hydration & Texture
Ectoin's hydration response activates within 48 hours. Skin feels more resilient. Barrier function improves. Surface texture begins to refine.
72%
Week 4-6
Early Structural Change
GHK-Cu begins upregulating collagen and elastin synthesis. Skin biopsy studies show measurable changes from week 4. Fine lines begin to soften.
81%
Week 8-10
Visible Regeneration
Skin density and firmness measurably improved. Fine lines visibly reduced. 81% of participants reported visible improvement at this stage.
88%
Week 12
Full Clinical Outcome
The 12-week endpoint where peer-reviewed studies measure statistically significant improvements in collagen density, skin thickness, and firmness. Results compound with continued use.
94%
06 Customer Reviews
Real results,
real people.
I was skeptical of another peptide serum. Eight weeks in, my dermatologist noticed the difference before I mentioned I'd changed anything.
Elena R.
Verified purchase · 8 weeks use
Verified Buyer
The texture is unlike anything I've used — absorbs instantly, no residue. Skin has been noticeably firmer.
Sophia M.
Verified purchase · 6 weeks use
Verified Buyer
I've tried injectable peptides. This delivers comparable results without the bruising, the cost, or the clinic appointments.
Marcus T.
Verified purchase · 10 weeks use
Verified Buyer
07 Join the Waitlist
Peptide science,
in your inbox.
Early access to new formulas, clinical update letters, and founding customer pricing. No noise — just signal.
Founding member pricing on all future releases
No spam. Unsubscribe at any time. rhivaskin.com