Ingredient review
Recombinant Polypeptide-47
INCI: TRANSGENIC NEMATODE RH-POLYPEPTIDE-47
A biotech-derived peptide that may help support skin firmness, but human research is still limited.
In plain English
This ingredient is a protein fragment made in a lab using a special process with microscopic worms (nematodes). It is designed to mimic a natural human protein that helps keep skin firm and elastic. Because it is made in a controlled lab, it is very pure and consistent. However, it is a relatively new ingredient, so there is less long-term safety data compared to more traditional peptides.
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
- biotech
- Evidence
- emerging
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Recombinant Polypeptide-47 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 Recombinant Polypeptide-47.
- 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 recombinant (lab-made) polypeptide that is identical in sequence to a fragment of a human protein. It is produced by genetically modified nematodes (roundworms) in a bioreactor, then purified for use in cosmetics.
How it works
When applied to skin, the polypeptide is thought to signal skin cells to produce more collagen and other structural proteins, potentially improving firmness and reducing the appearance of fine lines. It may also help protect existing collagen from breakdown.
Pros
Novel anti-aging approach
Uses a specific human protein fragment to target skin structure at a molecular level, potentially offering benefits beyond common peptides.
High purity and consistency
Produced via biotechnology, so each batch is identical and free from contaminants found in natural extracts.
Cons and cautions
Limited human research
Most evidence comes from lab studies or small trials; large-scale human studies are not yet available to confirm long-term benefits.
Premium price point
The biotech production process makes this ingredient more expensive, so products containing it are often priced higher.
Best for
- People looking for advanced anti-aging ingredients
- Those who tolerate peptides well and want to try a novel option
Use caution if
- Anyone with known allergies to recombinant proteins (rare)
- Those on a very tight budget, as products with this ingredient tend to be premium-priced
Usage tips
Safety summary
Generally considered safe for topical use at typical cosmetic concentrations. Irritation and allergy risks are low, but as with any new ingredient, patch testing is recommended for sensitive individuals.
Research notes
Early studies suggest this polypeptide can stimulate collagen production in lab-grown skin cells. One small human study showed improved skin firmness after 8 weeks, but more research is needed to confirm these effects in larger, diverse groups.
Common label clues
- Typical concentration
- 0.001% to 0.1%
- Regulatory status
- Approved for cosmetic use in the EU, US, and other major markets. It is not a drug ingredient and cannot claim to treat or cure skin conditions.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- Produced via fermentation in bioreactors, which has a lower environmental footprint than harvesting from animal or plant sources. The nematodes are contained and not released into the environment.
Good to know
- This ingredient is often listed under its full INCI name on product labels, so look for 'Transgenic Nematode rh-Polypeptide-47'.
- It is typically used at very low concentrations (under 0.1%) because it is highly active.
Common questions
What is Recombinant Polypeptide-47 in beauty products?
This ingredient is a protein fragment made in a lab using a special process with microscopic worms (nematodes). It is designed to mimic a natural human protein that helps keep skin firm and elastic. Because it is made in a controlled lab, it is very pure and consistent. However, it is a relatively new ingredient, so there is less long-term safety data compared to more traditional peptides.
What does Recombinant Polypeptide-47 do in a beauty product?
When applied to skin, the polypeptide is thought to signal skin cells to produce more collagen and other structural proteins, potentially improving firmness and reducing the appearance of fine lines. It may also help protect existing collagen from breakdown.
Is Recombinant Polypeptide-47 safe for most people?
Generally considered safe for topical use at typical cosmetic concentrations. Irritation and allergy risks are low, but as with any new ingredient, patch testing is recommended for sensitive individuals.
Who should be careful with Recombinant Polypeptide-47?
Anyone with known allergies to recombinant proteins (rare) Those on a very tight budget, as products with this ingredient tend to be premium-priced
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.