Collagenase

EnzymeBest with a meal

What is it

Collagenase is an enzyme that breaks down collagen, the main structural protein in connective tissue, skin, tendons, and cartilage. In supplements and pharmaceuticals it appears as a digestive aid or topical/injectable agent for breaking down fibrotic tissue.

Evidence for 2 uses

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Dupuytren's contracture (injectable, prescription)

Strong Evidence

Multiple randomized trials support clostridial collagenase injection for breaking down the fibrotic cord in Dupuytren's contracture. This is a prescription medical procedure, not a dietary supplement use.

Oral supplementation for general health

Mixed Evidence

There is no convincing human trial evidence that oral collagenase supplements deliver any specific health benefit. Claims around digestion of dietary collagen are mechanistically plausible but unsupported by clinical outcomes.

How it works

Collagenase cleaves the peptide bonds in collagen's triple-helix structure, which most other proteases cannot touch. Microbial collagenases (commonly from Clostridium histolyticum) are broad in specificity, while mammalian matrix metalloproteinases (MMP-1, MMP-8, MMP-13) are tissue-remodeling enzymes that target collagen during normal turnover, wound healing, and inflammation. In oral enzyme blends, collagenase is sometimes included alongside other proteases with the rationale that it may aid digestion of collagen-rich foods or support connective-tissue turnover, though oral bioavailability of intact enzyme is limited. In medicine, injectable collagenase is used to break down cord-like fibrotic tissue (for example in Dupuytren's contracture and Peyronie's disease) and topical collagenase is used for debridement of necrotic wounds.

Dosage

There is no Recommended Dietary Allowance for collagenase. Oral supplement doses vary widely and are typically expressed in activity units rather than milligrams, with no consensus range. Prescription injectable and topical products have defined dosing tied to the specific condition and should only be used under medical supervision.

When and how to take it

Oral collagenase, when included in digestive enzyme blends, is typically taken with meals so it can act on dietary protein. Injectable and topical medical forms follow clinician-directed schedules. There is no established time-of-day preference for oral supplementation.

3 commercial forms

Compare the main delivery options and what they’re best suited for.

Microbial collagenase (oral enzyme blends)

Most often derived from Clostridium histolyticum or related bacteria. Appears in 'systemic enzyme' or 'joint enzyme' products.

Intact enzyme is largely digested in the stomach; activity likely confined to the GI lumen.

Injectable collagenase (Xiaflex)

Prescription product used by clinicians for fibrotic conditions.

Delivered directly to the target tissue.

Topical collagenase (Santyl)

Prescription debridement ointment for chronic wounds.

Local action only.

Safety

Topical and injectable collagenase carry well-documented risks of bruising, swelling, and tendon or ligament injury at the treatment site. Oral collagenase in supplements has limited safety data, though most enzyme products are well tolerated; mild GI upset is the most commonly reported issue. People with bleeding disorders or on anticoagulants should avoid injectable forms unless specifically prescribed.

Who should be cautious

Avoid injectable or topical collagenase during pregnancy and breastfeeding without specific medical guidance. People on blood thinners, with bleeding disorders, or with active infection at a treatment site should not use injectable forms without physician oversight. Allergy to bacterial proteins is a contraindication for microbial-derived products.

Interactions

Injectable collagenase may increase bleeding risk when combined with anticoagulants or antiplatelet drugs. Oral enzyme blend interactions are poorly characterized but unlikely to be clinically significant at typical doses.

Frequently asked questions

Will an oral collagenase supplement break down scar tissue?⌄

No. Oral enzymes do not survive digestion intact in meaningful amounts, and there is no human evidence that supplemental collagenase reduces internal scar tissue.

Is collagenase the same as collagen?⌄

No. Collagen is the protein; collagenase is the enzyme that breaks it down.

References

Collagenase on Wikidata — Wikidata link

Collagenase on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Collagenase (PubMed search) — PubMed link

Track Collagenase with Pilora

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.