Ingredient review
Clostridium Histolyticum Collagenase
INCI: Clostridium Histolyticum Collagenase
A potent enzyme that dissolves collagen, used sparingly in skincare for deep exfoliation, but requires caution due to its strength.
In plain English
This ingredient is an enzyme from bacteria that breaks down collagen, the protein that gives skin structure. In skincare, it's used in very small amounts to gently remove dead skin cells and support healing, but it's strong and can irritate if overused.
Review score
Safety, usefulness, and evidence
Useful in the right context, but not low-maintenance
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- biotech
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Read the cautions before using
Clostridium Histolyticum Collagenase can be useful, but watch for some irritation potential.
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 Clostridium Histolyticum Collagenase.
- 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
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A bacterial enzyme that specifically targets and breaks down collagen, a key structural protein in skin.
How it works
It works by cleaving collagen molecules, helping to loosen and remove dead skin cells and debris from the skin's surface, which can improve texture and allow other ingredients to penetrate better.
Pros
Powerful exfoliation
Effectively breaks down collagen to remove dead skin cells, improving skin texture and smoothness.
Targeted action
Specifically targets collagen, making it more precise than some broad exfoliants.
Cons and cautions
High irritation potential
Can cause redness, stinging, or peeling, especially on sensitive or compromised skin.
Limited availability
Rarely found in over-the-counter products; more common in clinical or medical settings.
Best for
- Those with thick, rough skin seeking strong exfoliation
- Individuals under professional guidance for wound care
Use caution if
- People with sensitive, inflamed, or broken skin
- Those with active acne or rosacea
Usage tips
Safety summary
Safe for topical use in very low concentrations under professional guidance, but can cause irritation if misused. Not recommended for daily use.
Research notes
Studies show effectiveness in wound healing and exfoliation, but evidence for cosmetic anti-aging benefits is limited and mostly from medical contexts.
Common label clues
- Typical concentration
- Very low (typically under 0.1%)
- Regulatory status
- Generally recognized as safe for topical use in regulated concentrations, but not approved for cosmetic use in all countries without prescription.
- Common uses
- Exfoliating treatments, Wound care products
- Environmental note
- Produced via fermentation, which has a lower environmental impact than animal-derived enzymes.
Good to know
- This ingredient is derived from Clostridium histolyticum bacteria, not from animals.
- It is often used in medical wound debridement, so its cosmetic use is specialized.
Common questions
What is Clostridium Histolyticum Collagenase in beauty products?
This ingredient is an enzyme from bacteria that breaks down collagen, the protein that gives skin structure. In skincare, it's used in very small amounts to gently remove dead skin cells and support healing, but it's strong and can irritate if overused.
What does Clostridium Histolyticum Collagenase do in a beauty product?
It works by cleaving collagen molecules, helping to loosen and remove dead skin cells and debris from the skin's surface, which can improve texture and allow other ingredients to penetrate better.
Is Clostridium Histolyticum Collagenase safe for most people?
Safe for topical use in very low concentrations under professional guidance, but can cause irritation if misused. Not recommended for daily use.
Who should be careful with Clostridium Histolyticum Collagenase?
People with sensitive, inflamed, or broken skin Those with active acne or rosacea
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.