Ingredient review
RH-Polypeptide-67
INCI: RH-Polypeptide-67
A lab-made peptide that may help firm skin and soften wrinkles, but human studies are still limited.
In plain English
RH-Polypeptide-67 is a short chain of amino acids made in a lab to mimic a natural signaling protein in your skin. When applied in a cream or serum, it tells skin cells to produce more collagen and elastin, which are the proteins that keep skin plump and bouncy. Think of it as a tiny messenger that encourages your skin to act younger. Because it's a large molecule, it works best when the product also includes ingredients that help it absorb.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is still emerging, so marketing claims deserve extra caution.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- emerging
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
RH-Polypeptide-67 is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging RH-Polypeptide-67.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
emergingThe ingredient may be promising, but claims should be treated more cautiously.
What it is
A synthetic peptide, specifically a recombinant human polypeptide, engineered to replicate a fragment of a natural protein involved in skin structure and repair.
How it works
It binds to receptors on skin cells (fibroblasts) and signals them to increase production of collagen, elastin, and other extracellular matrix components. This helps improve skin firmness, elasticity, and reduce the depth of wrinkles over time with consistent use.
Pros
Targeted collagen support
Specifically signals skin cells to boost collagen production, which can help restore firmness and reduce sagging over time.
Low irritation potential
As a synthetic peptide, it is generally well-tolerated even by sensitive skin types, with minimal risk of redness or stinging.
Cons and cautions
Limited evidence
Most supporting data comes from lab studies or small trials; large-scale human studies are not yet available, so results may vary.
Delivery challenges
Peptides are large molecules that can struggle to penetrate the skin barrier, so the product's overall formula matters a lot for effectiveness.
Best for
- Adults looking to reduce early signs of aging
- Those wanting a gentle, non-irritating anti-aging ingredient
Use caution if
- Anyone with known allergies to synthetic peptides (rare)
Usage tips
Safety summary
Considered safe for topical cosmetic use at typical concentrations. No significant irritation or sensitization has been reported in available studies. As with any new ingredient, patch testing is recommended for those with very sensitive skin.
Research notes
Research is in early stages. In vitro studies show collagen-stimulating activity, and small human trials suggest improvements in skin firmness and wrinkle depth. Larger, peer-reviewed clinical studies are needed to confirm efficacy and long-term safety.
Common label clues
- Typical concentration
- Typically used at 0.1% to 1% in leave-on formulations
- Regulatory status
- Approved as a cosmetic ingredient in the EU, US, and other major markets; not classified as a drug or active pharmaceutical.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- Synthetically produced in controlled lab conditions, so it does not rely on animal or plant harvesting, reducing ecological impact.
Good to know
- RH-Polypeptide-67 is often found in high-end anti-aging serums and may be listed alongside other peptides for a synergistic effect.
- It is not the same as copper peptides or growth factors, though it shares some similar signaling functions.
Common questions
What is RH-Polypeptide-67 in beauty products?
RH-Polypeptide-67 is a short chain of amino acids made in a lab to mimic a natural signaling protein in your skin. When applied in a cream or serum, it tells skin cells to produce more collagen and elastin, which are the proteins that keep skin plump and bouncy. Think of it as a tiny messenger that encourages your skin to act younger. Because it's a large molecule, it works best when the product also includes ingredients that help it absorb.
What does RH-Polypeptide-67 do in a beauty product?
It binds to receptors on skin cells (fibroblasts) and signals them to increase production of collagen, elastin, and other extracellular matrix components. This helps improve skin firmness, elasticity, and reduce the depth of wrinkles over time with consistent use.
Is RH-Polypeptide-67 safe for most people?
Considered safe for topical cosmetic use at typical concentrations. No significant irritation or sensitization has been reported in available studies. As with any new ingredient, patch testing is recommended for those with very sensitive skin.
Who should be careful with RH-Polypeptide-67?
Anyone with known allergies to synthetic peptides (rare)
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.