Ingredient review
Ethyl Carbazido Hyaluronate with rh-Polypeptide-7
INCI: Ethyl Carbazido Hyaluronate, rh-Polypeptide-7
A biotech blend that pairs a modified hyaluronic acid with a lab-made peptide to hydrate and support skin resilience, though long-term human data is still limited.
In plain English
This ingredient is a combination of two lab-made components: a tweaked version of hyaluronic acid (a moisture-binding molecule naturally found in skin) and a small protein fragment called a peptide. The hyaluronic acid part is modified to stick better to skin and resist breakdown, while the peptide is designed to signal skin cells to maintain their structure. Together, they aim to plump and firm skin, but because this is a newer ingredient, most evidence comes from lab studies rather than large human trials.
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
Ethyl Carbazido Hyaluronate with rh-Polypeptide-7 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 Ethyl Carbazido Hyaluronate with rh-Polypeptide-7.
- 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 biotech-derived ingredient that chemically links a modified hyaluronic acid (ethyl carbazido hyaluronate) with a recombinant human-like peptide (rh-polypeptide-7). The hyaluronic acid is altered to improve skin adhesion and stability, and the peptide is produced via fermentation using engineered yeast or bacteria.
How it works
The ethyl carbazido hyaluronate part binds water to the skin's surface, providing immediate hydration and a plumping effect. The rh-polypeptide-7 portion is thought to interact with skin cells to support collagen and elastin production, potentially improving firmness over time. The combination is designed to deliver both instant and longer-term benefits in one molecule.
Pros
Dual-action hydration and support
Combines immediate water-binding with potential long-term skin structure support, offering more than a simple humectant.
Low irritation profile
Both components are generally well-tolerated, making it suitable for sensitive skin types that react to stronger actives.
Cons and cautions
Limited human research
Most evidence comes from lab or animal studies; large-scale human trials are lacking, so real-world effectiveness is less certain.
Higher cost
Biotech production and the novelty of the ingredient often make it pricier than traditional hyaluronic acid or peptides.
Best for
- People looking for a multi-tasking hydrating and anti-aging ingredient
- Those with dry or dehydrated skin who want a gentle option
Use caution if
- Anyone with a known allergy to hyaluronic acid or peptides (rare)
- Those seeking ingredients with extensive human clinical data
Usage tips
Safety summary
Based on available data, this ingredient is considered safe for topical use in cosmetics at typical concentrations. Irritation and allergy risks are low, but as with any new ingredient, patch testing is recommended for first-time users.
Research notes
Evidence is primarily from manufacturer-sponsored in vitro and ex vivo studies showing improved hydration and collagen stimulation. Independent peer-reviewed human trials are scarce, placing this ingredient in the 'emerging' evidence category.
Common label clues
- Typical concentration
- 0.1% to 1% in leave-on products
- Regulatory status
- Approved as a cosmetic ingredient in the EU, US, and other major markets. Not classified as a drug or medicine.
- Common uses
- Anti-aging serums, Hydrating creams, Eye treatments
- Environmental note
- Produced via biotech fermentation, which generally has a lower environmental footprint than animal-derived ingredients, but specific sourcing data is not widely available.
Good to know
- The 'rh' in rh-Polypeptide-7 stands for 'recombinant human,' meaning it's made in a lab to mimic a human protein.
- Ethyl carbazido modification is designed to make hyaluronic acid more resistant to enzymatic breakdown on the skin.
Common questions
What is Ethyl Carbazido Hyaluronate with rh-Polypeptide-7 in beauty products?
This ingredient is a combination of two lab-made components: a tweaked version of hyaluronic acid (a moisture-binding molecule naturally found in skin) and a small protein fragment called a peptide. The hyaluronic acid part is modified to stick better to skin and resist breakdown, while the peptide is designed to signal skin cells to maintain their structure. Together, they aim to plump and firm skin, but because this is a newer ingredient, most evidence comes from lab studies rather than large human trials.
What does Ethyl Carbazido Hyaluronate with rh-Polypeptide-7 do in a beauty product?
The ethyl carbazido hyaluronate part binds water to the skin's surface, providing immediate hydration and a plumping effect. The rh-polypeptide-7 portion is thought to interact with skin cells to support collagen and elastin production, potentially improving firmness over time. The combination is designed to deliver both instant and longer-term benefits in one molecule.
Is Ethyl Carbazido Hyaluronate with rh-Polypeptide-7 safe for most people?
Based on available data, this ingredient is considered safe for topical use in cosmetics at typical concentrations. Irritation and allergy risks are low, but as with any new ingredient, patch testing is recommended for first-time users.
Who should be careful with Ethyl Carbazido Hyaluronate with rh-Polypeptide-7?
Anyone with a known allergy to hyaluronic acid or peptides (rare) Those seeking ingredients with extensive human clinical data
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.